[HN Gopher] UCLA Study Finds Laughter in 65 Species, from Rats t...
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       UCLA Study Finds Laughter in 65 Species, from Rats to Cows
        
       Author : cdepman
       Score  : 442 points
       Date   : 2022-01-10 06:18 UTC (16 hours ago)
        
 (HTM) web link (www.openculture.com)
 (TXT) w3m dump (www.openculture.com)
        
       | neuronic wrote:
       | This is probably me not being able to "read the room" but this
       | study both makes me very happy and very sad.
       | 
       | I recently watched Dominion documentary [1] and the more we learn
       | about animals cognition the more I feel the weight of their
       | massive abuse especially in the last 150 years. (The recent story
       | of an HNer interacting with a spider on his desk was really cool
       | though, I don't have a link anymore.)
       | 
       | Without judging anyone or their behavior in particular I just
       | feel repelled by our treatment of other clearly cognitive beings.
       | The people working these places don't seem like ones you would
       | want around anyone in society either and I don't buy the story
       | that it's only bad in some places. I'd wager that it's really bad
       | in _most_ cases.
       | 
       | [1] https://www.youtube.com/watch?v=LQRAfJyEsko
        
         | austinjp wrote:
         | I think you're reading the room perfectly well. Or at least,
         | reading the mood of plenty of people.
         | 
         | We're only going to find ever-increasing numbers of animals
         | that demonstrate various forms of cognisance. Hopefully we'll
         | continually re-evaluate our collective actions as a globally
         | dominant species.
         | 
         | Perhaps you should avoid reading about Harry Harlow's "wire
         | mother" experiments [0]. They're abjectly depressing, and
         | demonstrate how horrifically cruel humanity can be toward other
         | creatures.
         | 
         | [0] https://en.m.wikipedia.org/wiki/Harry_Harlow
        
         | Luc wrote:
         | Cultured meat will become widely available soon. I have high
         | hopes.
        
           | neuronic wrote:
           | This is my hope as well but I have already heard the
           | backlash: it's pharma companies trying to control our food.
           | 
           | Increasingly, I feel afraid of the lunatics trying to hinder
           | progress like some 14th century catholics. Progress to me
           | means also an increasing awareness of the limitations of our
           | ecosystems and that infinite growth is a myth.
        
           | seanwilson wrote:
           | > widely available soon
           | 
           | I keep hearing this but we're likely still decades anyway
           | from this scaling up to replacing most meat so I think
           | individuals who care about this issue right now shouldn't be
           | using it as an excuse for waiting to give up meat.
           | 
           | It's been just around the corner for ages and still not in
           | supermarkets, let alone at the scale and cut variety required
           | for everyone to replace meat with it.
           | 
           | Stances like "I'll switch when it's the same look and taste
           | but cheaper" and "it's unnatural" are going to take time to
           | go away too. And what about people that want a whole roast
           | chicken or a duck leg?
           | 
           | There's lots of good replacements already for dairy milk for
           | example but it's still popular so I'm not hopeful cultured
           | meat will be different. Maybe the real issue is the cost of
           | animal products don't take externalities into account and are
           | artificially cheap.
        
       | pkrumins wrote:
       | Does anyone know if they found if cats laugh? I can't find it.
        
         | GoblinSlayer wrote:
         | No way, cats play in total silence. They have keen hearing and
         | don't need any special play signal on top of that.
        
       | notRobot wrote:
       | Complete list of animals found to have play vocalisations
       | (laughter) can be found in the linked study (pdf):
       | https://gabryant.scholar.ss.ucla.edu/wp-content/uploads/site...
       | 
       | Includes species of cats, dogs, monkeys, rodents, birds, others.
        
       | albatross13 wrote:
       | Good to finally have confirmation that my rats are indeed
       | laughing at me when we try and play and they run away from me.
        
       | GoblinSlayer wrote:
       | Huh, foxes. Everything foxes say sounds like laughter though.
        
         | liquid153 wrote:
         | What the fox say.
        
       | angusiasty wrote:
       | That's an old finding. professor Jordan Peterson was talking
       | about it for years. I can't remember the name of the researcher
       | he was referring to, but he found that in rats.
        
       | kwyjibo1230 wrote:
       | Heinlein wrote in Stranger in a Strange Land that "Man is the
       | [only] animal who laughs." Who's laughing now? (Rats and cows
       | apparently).
       | 
       | All jokes aside, interesting research. We find ourselves more
       | similar than dissimilar to our less sentient counterparts each
       | year.
        
       | Tepix wrote:
       | There are often discussions about what makes humans special and
       | things like self-awareness, humour, sarcasm, tool usage, ethics
       | etc are brought forward. I think there are hardly any fundamental
       | differences between humans and other animals. We've merely
       | reached an intelligence threshold that allowed us to develop
       | better languages and writing and that means knowledge can be
       | collected and passed on _much much_ better.
       | 
       | Laughter is yet another trait some might see as typically human,
       | yet here we are.
        
         | naasking wrote:
         | > We've merely reached an intelligence threshold
         | 
         | Depends what you mean by intelligence. Ravens and chimps are
         | almost as good as humans at causal reasoning, ie. correlating
         | and inferring causes and effects from observations. This seems
         | to fall under a typical understanding of "intelligence".
         | 
         | Where we differ is that we can _communicate_ such knowledge
         | between individuals very effectively, and across generations,
         | which seems to yield a compounding effect. I think small,
         | compounding network effects like this are behind apparent human
         | "superiority".
        
         | shafyy wrote:
         | What is more, there is probably some overlap of "intelligence"
         | among humans and other species. E.g., I'm pretty sure that
         | there are Chimps that are more intelligent and self-aware than
         | some humans. Most certainly funnier, if we would understand
         | their humor :-)
        
         | timoth3y wrote:
         | "Man is the only animal that blushes. Or needs to." -- Mark
         | Twain
        
           | elif wrote:
           | Mark should see my dog after he eats cat food.
        
         | heresie-dabord wrote:
         | > Laughter is yet another trait some might see as typically
         | human
         | 
         | In humans, humour is a debugging process, which is
         | fundamentally _rational_. The very fact that a statement can be
         | _correct_ or _erroneous_ is the basis of language and therefore
         | education and social evolution.
         | 
         | > there are hardly any fundamental differences between humans
         | and other animals
         | 
         | Evolution is true. But... the ESA and NASA have sent a _space
         | telescope_ to a stable position at Lagrange point 2, and the
         | PRC has a rover exploring _the dark side of the Moon_.
         | 
         | Humans _do_ have greatness.
        
           | lm28469 wrote:
           | > In humans, humour is a debugging process
           | 
           | I always find it amusing that we evolved brains, developed
           | computers to crudely mimics our brain, created words to
           | describe said computers and we now use these words on us as
           | if we were computers ourselves... it's almost insulting,
           | we're not computers. Your memory has nothing to do with
           | ram/ssds, your brain isn't a cpu, these are all one way over
           | simplified analogies
        
             | heresie-dabord wrote:
             | > I always find it amusing that [...]
             | 
             | Egg zachary. You are amused by something, you explained
             | where you think you see an error.
             | 
             | You can choose a different verb to avoid "debug", but you
             | just provided a suitable illustration of humour as an
             | _application_ [1] of reason.
             | 
             | [1] tech pun not intended, but fitting
        
           | toper-centage wrote:
           | Is there any fundamental difference between poor people and
           | rich people other than their privilege and riches? Could poor
           | people send a space telescope to space?
           | 
           | Human animals have very similar tools to those of other
           | social animals. We're just privileged to somehow be able to
           | stack up our experiences to create science and technology.
           | But isolated tribes in the amazon could never send telescopes
           | to space.
           | 
           | So we're only special due to our circunstance. Our bodies are
           | barely fit to stand and walk all day, we're pushing the
           | limits of where we're supposed to live, and our diets are all
           | wrong. But we make it work because our ancestors developed
           | knowledge sharing to a global level.
           | 
           | Were just very lucky priviledged apes.
        
         | peterburkimsher wrote:
         | Here's a few guesses, please correct me if I'm wrong about
         | these!
         | 
         |  _The best way to get the right answer on the Internet is not
         | to ask a question, it 's to post the wrong answer._
         | https://github.com/dwmkerr/hacker-laws#cunninghams-law
         | 
         | Culture list from https://github.com/peterburk/sortlikes based
         | on a manual categorisation of friends' liked Facebook pages,
         | when trying to learn Mandarin while living in Taiwan a few
         | years ago.
         | 
         | Unique to humans:
         | 
         | { Art, Dance, Photography, Theatre, Banking, Business
         | (Management), Causes (NGOs), Comedy, Cooking, Clothing,
         | Driving, Movies, Music, News, Politics, Religion, Sport,
         | Transport, Software, Hardware }
         | 
         | Shared with other species:
         | 
         | { Accommodation, Children, Cleaning, Construction, Drinking,
         | Education, Games, Health, International, Military, Pets }
        
           | circlefavshape wrote:
           | Politics is definitely not unique to humans - alliance-
           | building is commonplace among social animals. It's well-known
           | that primates have a sense of fairness, so they might have
           | causes too.
           | 
           | News is essentially gossip writ large, so if other animals
           | have language then they definitely have this.
           | 
           | Banking, photography, driving, movies, software and hardware
           | are all recent human inventions, so it's kinda irrelevant
           | whether other animals have those
           | 
           | Clothing may be unique to humans, but historically not all
           | humans have used clothes.
           | 
           | Bird and whale song is probably music. Birds do courtship
           | dances. IMO this probably counts as art.
           | 
           | Again if other animals have language they might also have
           | comedy, religion, theatre - without knowing that they _don
           | 't_ have language then we can't rule those out.
           | 
           | Business - not sure. If other animals have trade then I guess
           | that's business? There's some evidence of exchange among
           | other animals, but I'm not sure it counts as "trade"
           | https://theconversation.com/what-trade-deals-can-teach-us-
           | ab...
           | 
           | All that's left unique to us is cooking.
           | 
           | I suspect your first list could be reduced to one definite -
           | "fire" - and two maybes "language" and "trade". I'd bet that
           | maybe animals _have_ language, but that we haven 't
           | deciphered it yet
        
             | vageli wrote:
             | > All that's left unique to us is cooking.
             | 
             | Seems we may not be the only ones that cook after all.
             | 
             | https://www.npr.org/sections/thesalt/2015/06/03/411748170/c
             | h...
        
             | Ygg2 wrote:
             | What's unique to humans is the quantity and quality. Sure.
             | Every species does something we do. But compared to us, not
             | a single species does everything, nor to a degree we do.
        
         | menzoic wrote:
         | Also keep in mind all of our perception or judgements about who
         | is more superior are being made by...humans
        
         | alecst wrote:
         | There's one major distinction between humans and animals:
         | language. Not like "me want banana" language like in apes but
         | like fully "ideas within ideas within ideas" language, with
         | recursion and case and noun classes and all that. It's
         | incredible. It's astonishing. We are like gods compared to
         | other animals.
         | 
         | And ever since we have had language (not even that long -- ~50k
         | years or so) we have been using it to tell stories about
         | ourselves that separate us more and more from the rest of the
         | world. As if all of the beautiful things that make us human
         | stemmed from symbolic reasoning. And yet we see every day:
         | jealousy in chimps, maternal love in cows, play in dogs,
         | compassion in elephants, frustration in cats, curiosity in
         | pigs.
         | 
         | The story that we tell ourselves about our specialness gives us
         | a moral free pass to treat animals how we want. Which is why I
         | think these articles tend to polarize. It's because the
         | implication is that if animals are really so much like us,
         | we'll have to come up with a much better justification for
         | treating them how we do. For now our reasons have hinged on
         | their supposed lack of ability to feel emotion (or even pain!).
         | In the future it might well be because they cannot symbolically
         | reason. We have to have some reason, in the end, for treating
         | animals the way we do, or otherwise face a moral crisis.
         | 
         | I do wonder how the pre-humanist humans felt about this, like
         | tribal people. I know they had few qualms about killing animals
         | but at the same time assigned human qualities to them. It might
         | have been that surviving without meat was simply impossible,
         | which is an argument one could not easily make today.
        
           | wcarron wrote:
           | There's nothing immoral with eating things. Why would there
           | be? The other posters' rabbit-fox example is a great point.
           | 
           | I also strongly reject the idea that we need 'our
           | specialness' to 'justify eating things and how we treat
           | them'. I don't need justification beyond: 'That thing is made
           | of meat. I can eat meat. I'm going to kill it and eat it'.
           | There is no moral crisis. Things die. Things get eaten.
           | 
           | Just 2 days ago, I caught 2 mice that had been living a nice
           | life in my attic (because I was lazy for a few weeks). I
           | drowned them in a bucket. Is there a moral crisis there? No.
           | They were vermin, living where I decided they cannot (because
           | I live in that space). There is no difference between that
           | and a scorpion killing small spiders trying to spin webs in
           | its burrow.
           | 
           | I also think you've touched on something: We created
           | distinctions that 'separates us more and more from the rest
           | of the world'. If what you say is true, then they're simply
           | illusory. If humans are so like animals (indeed we simply are
           | the apex animal), an attempt to force morality onto our
           | natural impulses and diets is absurd. Therefore, killing and
           | eating anything we can reasonbly digest is a natural behavior
           | of the human animal. Returning to the rabbit-fox example...
           | well, clearly you can see meat-moralilizing falls apart in a
           | hurry.
        
             | dTal wrote:
             | It sounds to me like you don't believe in morality _in
             | general_ at all. Assuming I 'm wrong - what is morality to
             | you?
        
               | wcarron wrote:
               | I consider myself to have a strong sense of fairness and
               | justice, and what is 'right' and 'wrong' in the context
               | of... human existence and sentience, I suppose. I'm
               | obviously saying I'm right about those, just that I do
               | have a sense of morality. Quite honestly, I'm offended
               | you think I'm some amoral... carcass of a human wandering
               | around.
               | 
               | Are you suggesting that, because I will dispose of vermin
               | and enjoy steak and venison guilt-free, I can't have
               | morals?
        
             | Stupulous wrote:
             | This is a fascinating twist to me. Human exceptionalism is
             | what lets us justify _not_ eating other animals- if we 're
             | not special then there is no reason we should be held to a
             | different standard. I have encountered many conversations
             | with the opposite premise and it never occurred to me that
             | it should be reversed. Thanks for the new perspective.
        
               | wcarron wrote:
               | Anytime.
               | 
               | Total aside, I think it's funny that many 'classic
               | herbivores' like deer, horses, moose, etc, will
               | absolutely eat other animals if the opportuntiy presents
               | it. Vegetarians and vegans have chosen a dietary extreme
               | that even the animals they strive to
               | protect/save/whatever don't display.
        
             | mbil wrote:
             | 'That thing is made of meat. I can eat meat. I'm going to
             | kill it and eat it'
             | 
             | I am made of meat -- hopefully we don't cross paths!
        
               | wcarron wrote:
               | Post-breakfast you're good. I get peckish again around
               | 4-5pm though, so watch out!
        
           | burrows wrote:
           | > There's one major distinction between humans and animals:
           | language. Not like "me want banana" language like in apes but
           | like fully "ideas within ideas within ideas" language, with
           | recursion and case and noun classes and all that. It's
           | incredible. It's astonishing. We are like gods compared to
           | other animals.
           | 
           | Does emoting about a claim make it true somehow?
        
           | leafmeal wrote:
           | More about language, apparently, not all languages have that
           | "ideas within ideas within ideas" property you were talking
           | about. The Piraha language of an indigenous people in Brazil
           | is the counter example. This New Yorker article talks about
           | it and the fascinating effects it had on the field of
           | linguistics. Before its discovery most linguists, Led by
           | Chomsky, believed having recursion in our grammars set humans
           | apart from all other animals. Piraha showed this might not be
           | the case.
           | 
           | https://www.newyorker.com/magazine/2007/04/16/the-
           | interprete...
           | 
           | https://en.wikipedia.org/wiki/Pirah%C3%A3_language
        
           | stremrn8 wrote:
        
           | jdavis703 wrote:
           | I see nothing immoral in a bear eating a human. It's just
           | being a bear. But just like any other social animal, as
           | humans we're of course going to kill that bear so it stops
           | eating us. It has nothing to do with us being superior than a
           | bear. We just don't want to die like any other animal!
           | 
           | And as humans I see nothing wrong with eating other animals
           | (outside of animal cruelty, e.g. factory farms). As animals,
           | we naturally eat each other. If there is something immoral
           | about this, does that mean a rabbit is morally superior to a
           | fox?
        
             | meowface wrote:
             | >I see nothing immoral in a bear eating a human. It's just
             | being a bear. But just like any other social animal, as
             | humans we're of course going to kill that bear so it stops
             | eating us. It has nothing to do with us being superior than
             | a bear. We just don't want to die like any other animal!
             | 
             | Right.
             | 
             | >And as humans I see nothing wrong with eating other
             | animals (outside of animal cruelty, e.g. factory farms).
             | 
             | Bears can't have moral culpability because they aren't
             | intellectually sophisticated enough, much like how a
             | theoretical profoundly mentally disabled human, or an
             | infant human, wouldn't be morally culpable for killing
             | someone. The "mens rea" can't be established. However,
             | nearly all adult humans do possess the capacity for moral
             | reasoning.
             | 
             | >As animals, we naturally eat each other.
             | 
             | Even though bears and humans are animals, and animals often
             | eat each other, we're the only animals blessed/cursed with
             | the knowledge that if we were to maul someone to death,
             | they'd experience terrible pain and suffering, their life
             | would be cut short, and their family would mourn their
             | death and lose resource support and potentially suffer and
             | die themselves. If a bear had those thoughts, they would be
             | morally culpable, but they almost certainly don't.
             | 
             | >If there is something immoral about this, does that mean a
             | rabbit is morally superior to a fox?
             | 
             | No, because a rabbit's moral reasoning is in the same class
             | as a bear's and a fox's, and not a human's.
        
               | cowninja wrote:
               | Individual beings who have a moral sense of personhood
               | engage in behavior that can be classified as moral or
               | immoral, right or wrong, permissible or impermissible.
               | Their actions can be categorized as either condemnable or
               | commendable. It makes sense to hold them morally
               | responsible for their intentional actions.
               | 
               | In contrast to humans, animals such as dogs, cats, birds,
               | and fish are commonly held NOT to be moral agents or
               | moral persons. In the jungle, a lion eating another
               | animal or killing a human for any reason is not
               | considered morally wrong or blameworthy.
               | 
               | Pet owners frequently chastise their pets for undesirable
               | behaviors such as urinating on the carpet, digging in the
               | garden, or failing to obey a command, but yelling "bad
               | dog" is not usually interpreted as moral agency. One
               | could argue, however, that the owner is engaging in moral
               | expectation or anthropomorphism.
        
             | adamc wrote:
             | We have options, and options imply choices and therefore
             | morality.
             | 
             | I see lots wrong with it, since it creates pain and bad
             | life experiences. This bothers me. But that's also a
             | choice, of what kind of morality you embrace.
        
             | cjrd wrote:
             | A fox eats a rabbit out of necessity. In our modern
             | economy, people don't _need_ to eat animals; it 's usually
             | a matter of convenience, taste, and tradition. But in all
             | reality, we can get by quite comfortably without doing so.
        
               | wcarron wrote:
               | There is no moral obligation to abstain from meat,
               | whatsoever.
        
               | etcet wrote:
               | Speak for yourself, I feel a strong moral obligation not
               | to eat meat or otherwise support industries which exploit
               | animals. Reducing suffering is a moral imperative.
        
               | jdavis703 wrote:
               | If you believe you should reduce suffering, it would be
               | better for you to quickly kill a chicken and eat it.
               | Otherwise, a cat, bird of prey or other animal might kill
               | that chicken. And cats are cruel killers that slowly
               | torture their prey before eating them.
        
               | etcet wrote:
               | We can just stop breeding chickens for the slaughter?
        
               | xxpor wrote:
               | Is it better to have lived and die, or not live at all?
        
               | etcet wrote:
               | Correction: is it better to suffer and die or not live at
               | all? The vast majority of the 8 billion plus chickens
               | slaughtered in the USA each year experience primarily
               | pain and stress for their short lives.
        
               | michaelmrose wrote:
               | Based on that logic I should suffocate you now in your
               | sleep so you don't have to get old and die of cancer.
               | Don't look out for me with my pillow I don't buy that
               | logic either.
        
               | meowface wrote:
               | This is the primary argument I see hunters use to justify
               | hunting as an ethical form of killing, in contrast to
               | factory farming. Obviously it's better to kill someone or
               | something quickly and painlessly than slowly and
               | painfully, but I don't buy this argument. If you truly
               | had that motivation, you would be saving that chicken
               | from predation and finding a sanctuary or home for it,
               | and/or you'd be encouraging mass human euthanization
               | campaigns across various parts of the world to reduce
               | suffering and slow, painful deaths.
               | 
               | If there were a human serial killer killing people via a
               | projectile energy weapon that always instantly killed
               | someone from a long distance before they had any idea
               | what was happening, I don't think you'd argue for a
               | greatly reduced sentence due to their humane method of
               | disposal. If there were an ancient human civilization
               | that went on hunting trips to kill and eat humans in
               | other villages because they believed human flesh was the
               | most prized meat, and they defended it by saying that
               | they were probably all going to soon die of war or
               | starvation or disease anyway, I don't think you'd just go
               | "oh yeah true" without batting an eye.
               | 
               | The sole reason - the necessary and sufficient reason -
               | hunters find hunting justifiable is they attribute no
               | moral value to the lives of non-human animals. Anything
               | else is self-serving rationalization. If you attribute no
               | moral value to them, that puts you in the company of
               | almost everyone who's ever lived, but just state it
               | plainly instead of trying to wiggle around it with mental
               | gymnastics.
        
               | wcarron wrote:
               | Boom, someone finally said it. However, I think you can
               | just turn this:
               | 
               | > The sole reason - the necessary and sufficient reason -
               | hunters find hunting justifiable is they attribute no
               | moral value to the lives of non-human animals.
               | 
               | Into this:
               | 
               | > The sole reason meat-eaters find eating meat
               | justifiable is they attribute no moral value to the lives
               | of non-human animals.
        
               | dragonwriter wrote:
               | The sole reason vegetable eaters find eating vegetables
               | justifiable is they attribute no moral value to the lives
               | of non-animal life forms.
        
               | wcarron wrote:
               | Uhh, yeah? That was my point. Food has no moral value.
               | It's just food.
        
               | [deleted]
        
               | baq wrote:
               | Morality is like an ass: everybody has their own.
        
               | boston_clone wrote:
               | to try and extend this weird turn of phrase, human
               | progress is the equivalent of making sure everyone's ass
               | is clean.
        
               | boston_clone wrote:
               | This is ignorant of so much contemporary philosophy /
               | analytical ethics.
               | 
               | The amount of convincing arguments for needlessly causing
               | suffering in beings that clearly experience it are
               | vanishingly small.
        
               | wcarron wrote:
               | Your attempt to bend my morality to yours doesn't
               | register with me, bud.
               | 
               | Some things die so others may live. That is the way it
               | always has been, and always will be, regardless if some
               | subset of humans decides that "that's immoral". I will
               | continue to eat meat and hunt animals and feel zero
               | guilt. I do not care that something was killed for food
               | when... I dunno, grass juice and pitaya could
               | theoretically sustain me instead (lol). Animals taste
               | good and are calorically dense. That's 100% convincing
               | enough for me.
        
               | boston_clone wrote:
               | You stated "[t]here is no moral obligation to abstain
               | from meat, whatsoever." Hand-wavy attempts at dismissing
               | entire bodies of study within philosophy won't work with
               | most intelligent people, either.
               | 
               | Peter Singer is an excellent starting point for exploring
               | the dimensions of morality for eating animal flesh.
               | 
               | I can't argue against your own sense of guilt, since it's
               | possible for some people to feel not at all [0]. Your
               | other comment about willingly and guiltlessly drowning
               | mice [1] in a bucket is not indicative of a healthy mind.
               | 
               | 0. https://en.wikipedia.org/wiki/Psychopathy
               | 
               | 1. https://news.ycombinator.com/item?id=29871272#29877761
        
               | wcarron wrote:
               | It is exceedingly hilarious that you took:
               | 
               | 1. I drowned two rodents that lived, shit, probably bred,
               | and carried diseases through my walls and attic
               | 
               | 2. I eat meat and feel no guilt
               | 
               | And then used that to call me a psychopath. Thank you for
               | the amusement. Goodbye.
        
             | seph-reed wrote:
             | Suffering is bad. Abuse is bad. Enjoyment is good.
             | 
             | Suffering is inevitable, abuse is not. The best we can do
             | in life is minimize abuse while maximizing enjoyment.
             | 
             | Meat is not immoral, abuse is. It's really that easy.
             | Unfortunately, most meat comes from abused beings.
        
             | blacksmith_tb wrote:
             | Though I do agree with the general principle that humans
             | are animals, when it comes to eating each other, it's clear
             | that our greater flexibility (and understanding of our own
             | biology) allows us to choose our diets to a greater degree
             | than other animals. Given that, us eating fewer animals
             | (for ecologocial, health, and/or ethical reasons) seems
             | like the best approach.
        
           | theoriu234 wrote:
           | > We are like gods compared to other animals.
           | 
           | The linguistic ability of most Humans is at the level of GPT3
           | - probably why statistical approaches work so well in NLP.
        
           | Melatonic wrote:
           | I always wonder how the hell I would think or solve even
           | simple problems without language. It seems extremely foreign.
        
           | q1w2 wrote:
           | Studying AI has given me a lot of perspective of human
           | intelligence. It's pretty incredible the way that a system
           | that was designed as a basic input/output sensory/reflex
           | system has gotten so complex that we still cannot model it
           | with supercomputers.
           | 
           | The numbers of connections and configurations of neurons is
           | staggering, and still well beyond the neat matrix-array-based
           | of modern AI. ...but at the core, I've come to realize that
           | we continue to be stimulation based creatures. What we think
           | at any given moment is a product of what we were thinking a
           | moment before and the sensory stimulus we are constantly
           | receiving.
           | 
           | It occurs to me that when we create an AI that surpasses us,
           | that that AI will likely create a fundamentally different way
           | of thinking. Something not based on external stimulus and the
           | churning of our thoughts - but something more purposeful and
           | ordered.
           | 
           | And THAT entity will be the ultimate output of humanity. We
           | cannot imagine what it will do, or what it will do with us
           | (probably nothing - it will probably just leave the Earth).
           | ...but I also imagine that we are not the first in the
           | universe to create such an entity, and so there must be other
           | massive timeless entities in space.
           | 
           | Perhaps they live in the darkest parts of the universe, in
           | quiet contemplation, or perhaps they search for each other to
           | resist cosmic expansion. Perhaps they peacefully merge, or
           | collaborate, or war with one another on billion-year
           | timescales.
           | 
           | It's a great mystery that will forever be beyond our level of
           | intelligence. Unless, of course, the AI wants to upload us
           | and bring us along for the ride. ...but that notion is
           | probably just wishful thinking and hubris. It would be like
           | us keeping a pet fungus in our pocket so it can enjoy a day
           | at the office.
        
             | medstrom wrote:
             | You start out well with the first three paragraphs, but I
             | don't get how you can decide it will 'probably' leave the
             | Earth, let alone with such a high degree of confidence as
             | saying 'probably'. Why wouldn't it make an army of bots to
             | start converting all the matter in the solar system and
             | beyond into more computing substrate or whatever else it
             | finds useful?
        
               | q1w2 wrote:
               | You're right, I cannot say "probably". Although your
               | notion that it converts our solar system into a computing
               | machine, doesn't preclude it from leaving thereafter.
               | 
               | I suppose there are three possibilities.
               | 
               | 1. It leaves the Earth, and either remains limited in
               | size or expands in a more advantageous solar system(s).
               | 2. It stays on the Earth forever, permanently limiting
               | its computational capacity. 3. It expands to include sub-
               | entities that both stay and leave in some cosmic
               | distributed computing organism.
               | 
               | I suppose the three possibilities above can be reduced to
               | one fundamental question: Will the AI expand to be
               | interstellar/intergalactic in nature, or will it remain
               | limited?
               | 
               | Is there a fundamental unending utility to ever-greater
               | computing power? ...and, if so, would there be detectable
               | signs of such expanding computers in the cosmos? This
               | last question is important both for our own forecasting
               | of the future, but also to interpret inter-AI-entity
               | relations, because presumably if AIs do NOT get along in
               | space, they likely hide signs of their existence.
               | 
               | One thing I'm convinced of - organic meat bags are not
               | the future of space-faring intelligence.
        
               | majormajor wrote:
               | Many sorts of intelligence are social creatures, so -
               | especially for a hypothetical AI created by a us - I
               | would expect it to seek out stimulus and social
               | relationships.
               | 
               | In the happy sorts of sci-fi, that gives us something
               | like the Culture from Iain Banks; it could also be a
               | "replace the humans with other AI" situation.
               | 
               | I doubt we see it in our lifetimes, though.
        
             | burnished wrote:
             | You might be interested by neuromorphic hardware. The basic
             | observation is that animal computation and silicon
             | computation operate in very different ways. Animals use
             | lots of neurons that perform comparatively poorly (slow,
             | not deterministic) that are sparsely connected, but have a
             | high degree of parallelism. Compared to say a computer
             | chip, which uses relatively few components that all operate
             | at very high speeds with a high degree of determinism, are
             | very thoroughly connected, and do not operate at nearly the
             | same degree of parallelism. So if we want to explore AI
             | maybe we should try making hardware that is more similar to
             | the goop in our heads.
        
               | q1w2 wrote:
               | Neurons in your brain have tens of thousands of
               | connections each, and are not limited to the current AI
               | design where all connections are laid out in a neat
               | linear layers for matrix operations.
               | 
               | Squishy human brains connect in all directions - there's
               | no "layer" to every thought. It creates feedback loops,
               | intricate pathways, as well as direct connections.
               | 
               | Modern AI tech is fundamentally dumbs down intelligence
               | by this notion of layered matrix operations.
               | 
               | It is done for scalability because matrices can be
               | computed easily on a GPU, but it's not the same
               | architecture.
        
             | lm28469 wrote:
             | Until it's there it's 100% sci-fi. We've been through a few
             | AI hype cycles already and the most advanced AI is still
             | dumb as fuck compared to a 3yo kid.
             | 
             | We might be on a completely wrong path with our current
             | approach too, difference of degree vs difference of kind,
             | we don't know much about the brain and so far our binary
             | way of computing isn't really promising, especially not in
             | term of mimicking or surpassing the human brain, it might
             | just not be the right tool.
        
               | baja_blast wrote:
               | > most advanced AI is still dumb as fuck compared to a
               | 3yo kid
               | 
               | Or even a squirrel, take robotics for example or hell
               | even an AI simulated animal, the AI don't even come close
               | in it's ability to problem solve and react to novel
               | situations. A squirrel powered by a few acorns is able to
               | achieve things that even our most powerful supercomputers
               | consuming 8.2 megawatts could never do.
               | 
               | Problem is we are currently limited by our computer
               | architecture, brains operate in a wildly different way,
               | for one it's continuous/non discrete collection of
               | neurons that in themselves are quite complex.
               | 
               | IMO true AI will need to closer to a network of analog
               | computing parts.
        
               | quacked wrote:
               | Hilarious analogy. "Nuclear power vs. acorns".
               | 
               | How's the computing power of a squirrel's brain compared
               | to our best AI in terms of "number of system states"? I'm
               | not in the field, so I'll elaborate my poorly-phrased
               | question below:
               | 
               | My understanding is that you can calculate the number of
               | "system states" of a computer by calculating how many
               | different combinations of open-closed its logic gates can
               | support. It's a mind-bogglingly huge number, but no
               | matter what, the set of "all possible open-closed gate
               | combinations" will be larger than the set of "the
               | smartest, best simulation of an AI we have".
               | 
               | So--if memories, instincts, etc. are defined by things
               | like "angle of neuron twist, number of transmitter
               | molecules fired at second 0.0001, age of neuron in nS",
               | etc., then just how many more "system states" can a
               | squirrel's brain hold then a supercomputer can?
        
             | kingkawn wrote:
             | Anything invoking "ultimates" is a fever dream of people
             | who have lost sight of life for an obsession
        
             | menzoic wrote:
             | Even AI will be influenced by external stimulus. If it's
             | interacting with the world, then it has to have external
             | stimulus.
        
               | q1w2 wrote:
               | What I mean to say is that we are driven by stimulus.
               | ...whereas they might be driven by some purely internal
               | notions.
        
         | JumpCrisscross wrote:
         | > _there are hardly any fundamental differences between humans
         | and other animals_
         | 
         | This is a compact and _ex post facto_ unsurprising list.
         | Primates, social mammals, domesticated mammals and certain
         | birds. The line between us and social apex predators (cats,
         | dogs and certain birds, all of whom our ancestors allied with
         | ages ago) are blurry. The line between us and most species are
         | stark.
        
           | circlefavshape wrote:
           | Wow. You've just given me a vision of a future where we know
           | enough about other animals that we've been forced to give up
           | on human exceptionalism, so we fall back to insisting on
           | social-apex-predator exceptionalism instead
        
             | JumpCrisscross wrote:
             | If we can't acknowledge that complex tool wielding and
             | laughter are potentially galaxies apart in terms of
             | abundance, that future looks grim.
        
               | alexissantos wrote:
               | Grim for whom?
        
         | fleddr wrote:
         | Human being are only "special" within the context of our very
         | recent modern world.
         | 
         | Take an average human being and drop them at an island. Now we
         | have a "base" human being, the pure species if you will. Things
         | like humour, sarcasm and ethics have lost all meaning now,
         | which shows they're not special at all.
         | 
         | The typical urban person would probably die at the island as
         | they can't hunt or farm. Somehow this pretty critical base
         | knowledge was not passed on.
         | 
         | In the more optimistic scenario, the island people adapt to
         | relearn basic survival, which would rank them as social
         | hunters. Which is fine, but not that special.
         | 
         | Importantly, these smart hunters would be unable to reinvent
         | even the basic necessities of the modern world. Because even a
         | human with 20 years of education doesn't know how anything
         | works, they only make use of things. Again, the knowledge is
         | _NOT_ passed on.
         | 
         | So it's not us that is special, it's our modern world that is
         | special. Which is situational and the result of a handful of
         | critical inventions, many less than a century old.
         | 
         | These inventions were not guaranteed or destined to be. There's
         | even historic cases of anti-development in humans, where a
         | population failed to pass on learned techniques and tools,
         | after which subsequent generations became increasingly less
         | "sophisticated". None of which is surprising, as for the entire
         | existence of our species, minus 10K years (agriculture), we
         | were social hunters. Not god-like creatures. The average modern
         | human being is _less_ than a social hunter when the electricity
         | goes down.
        
         | IAmGraydon wrote:
         | I've thought about this quite a lot, and always come to the
         | same unique characteristic: man can think about thinking.
        
           | ajuc wrote:
           | My parents had 2 dogs, Irish setter and a mutt we rescued.
           | The mutt was significantly smarter. I've seen her burying a
           | bone she got in one place, notice that the other dog is
           | watching, wait for the other dog to go back home, and rebury
           | the bone in a different place.
           | 
           | This implies at least basic theory of mind and thinking about
           | thinking. This wasn't the only evidence btw.
           | 
           | Before that we had a different dog, also a mutt. He was
           | pretty aggressive and had a separate fenced area inside our
           | backyard. There was a cherry tree just outside that fenced
           | area and our cat liked to sit there, but only if the dog is
           | locked in the fenced area. That dog learnt to close the gate
           | to look as if it's locked and sit in there waiting for the
           | cat to climb the tree, AND wait for us to go to school/work,
           | and only then he would leave the fenced area and bark under
           | the tree at the cat for hours. We only knew thanks to
           | neighbors.
           | 
           | In general theory of mind is very useful to any social animal
           | and especially to predators, so I don't think it's as unique
           | to humans as some people say.
        
             | giantg2 wrote:
             | The more domesticated the animal is, the dumber it tends to
             | be. Wild animals, or even strays, have to think to survive.
             | I wonder if this also translates to humans given the
             | articles about IQ peaking in the previous century.
        
           | tuatoru wrote:
           | I seem to recall an experiment with corvids (crows) that
           | showed that they can figure out whether or not another crow
           | can or cannot see a crow treat, based on the different angle
           | of view.
           | 
           | In human children this ability (to realise that other people
           | have their own point of view) is called "theory of mind",
           | IIRC.
           | 
           | IOW crows can think about what other crows are thinking.
        
             | SamoyedFurFluff wrote:
             | Several animals display theory of mind, including the
             | variety of pig common in farming.
        
         | throwawayboise wrote:
         | TFA speculates that laughter or similar vocalizations are a
         | signal of nonagression in play. Play is necessary for animals
         | to learn to hunt and survive. There is no indication that the
         | "laughter" is due to a feeling of "joy" as humans experience
         | it, but I guess there's no way to really know either. Do we
         | observe animals telling jokes to each other, or laughing when
         | another of their group slips and falls?
        
         | abeppu wrote:
         | I think even if laughter is something we have in common with
         | lots of animals, humour still seems rather special to me.
         | Laughing when tickled doesn't clearly indicate anything special
         | is going on, but constructing and telling a joke requires not
         | just language at the level of a structured system of symbols
         | carrying meaning, but also a kind of counterfactual theory of
         | mind. A humorist understands and manipulates expectations in
         | order to violate them in a nonthreatening manner.
        
         | elif wrote:
         | It's also curious that we feed an animal that laughs (cows) to
         | an animal that doesn't laugh (cats) and somehow construct logic
         | to justify it all morally.
         | 
         | I find myself in that weird cult, despite personally having an
         | animal free diet for decades.
        
           | williamdclt wrote:
           | I've never heard of "can it laugh" as a criteria to judge
           | morality?
        
             | ramblerman wrote:
             | OP is suggesting that laughter is a measure of
             | intelligence, and that it might be immoral to feed a more
             | aware/intelligent creature to a lesser one.
             | 
             | In the same way we might be uncomfortable eating dolphins.
        
           | cstross wrote:
           | If you follow the links through to the original paper --
           | 
           | https://gabryant.scholar.ss.ucla.edu/wp-
           | content/uploads/site...
           | 
           | -- you'll see that a variety of felines (including domestic
           | cats) are among the species listed as having play
           | vocalizations.
        
           | Ygg2 wrote:
           | We keep cats, cause they are small and fun to be around. Not
           | because they laugh or have high IQ.
        
           | jdavis703 wrote:
           | After 14 years of eating a plant-based diet my partner got a
           | cat. Then I started buying the cat raw meat. Shortly after I
           | became an omnivore again. I still try to minimize meat for my
           | own health and the climate, but it's hard to argue about the
           | ethics of meat eating while feeding an obligate carnivore.
        
             | toper-centage wrote:
             | That's my main argument against flexitarianism. You can't
             | be "kinda vegan" without leaving your brain in permanent
             | stress due to dissonance. It's part of what stops me from
             | adopting an animal, specially a cat.
        
               | jdavis703 wrote:
               | > You can't be "kinda vegan" without leaving your brain
               | in permanent stress due to dissonance.
               | 
               | To be honest, a lot of meat still tastes kind of gross to
               | me. Give me fried tofu over baked chicken in a salad.
               | Heck if I'm just having a a boring burger for a random
               | lunch on a Tuesday, give me an Impossible patty over some
               | crappy fast food beef.
               | 
               | That said if there's a dish that's enhanced by meat (say
               | a Wagyu steak or a pastrami sandwich) then sure, I'll eat
               | that a few times a week.
               | 
               | At least so far, this hasn't caused me any stress.
        
               | throwawayboise wrote:
               | I tried impossible beef for the first time a couple of
               | weeks ago. It's nothing like real beef. It sorta passes
               | for a meat-colored component in something like lasagna,
               | but the texture and taste is not the same.
        
           | psbp wrote:
           | I eat animals, and probably will for the rest of my life, but
           | I do think it's one of those aspects of daily life that we'll
           | look back on as extremely barbaric.
        
             | pm90 wrote:
             | I have come to accept this as well.
             | 
             | I try to use the "Alt meat" Version or fish when possible
             | though to reduce meat consumption. But I'm incapable of
             | giving it up altogether at this point.
             | 
             | I do find the alt - meat to be good enough for cooked meat
             | though; I think there is a _huge_ market here.
        
             | lordnacho wrote:
             | Same here, in some ways I regard myself as a pre-abolition
             | slave owner/user (analogy breaks down somewhat, is it the
             | farmer who is the slave owner?). I get the feeling society
             | will change and this thing that used to be common will
             | slide towards being seen as despicable, worthy of having
             | your statue thrown in the water.
             | 
             | Originally I was reducing my meat intake for health reasons
             | but thinking about it more and more it does seem to be a
             | cruel thing to kill animals for meat, and doesn't seem
             | necessary. I still do it at a reduced rate because I'm
             | basically not strong willed enough and I want to be part of
             | society, which has very few qualms about raising animals
             | for slaughter. I also can't deny the stuff tastes good, and
             | one thing I've seen with addictive traits is it's very hard
             | to separate your desires from your moral judgement: if you
             | want something, you will think of an excuse to get it. So
             | now I just acknowledge the hypocrisy and eat a bit of meat
             | now and again.
             | 
             | One loophole I thought about was wild animals. Maybe
             | someone has thought about this more than me, but wild fish
             | and roaming animals would be condemned to either predation,
             | disease, or starvation if we didn't hunt them. Does that
             | change the moral calculus? I'm not sure.
        
               | wyre wrote:
               | In regards to your loophole I'm reminded of the pretty
               | famous Yellowstone study that showed when wolves are not
               | artificially reduced by hunting their entire environment
               | stabilized. Or is your loophole inferring that animals
               | should be hunted so they can avoid their natural fate?
               | Knowing that animals run away from their hunter I would
               | think their natural fate is preferable to the animal than
               | getting shot and killed.
        
               | lordnacho wrote:
               | Of course in the moment they don't want to be killed, but
               | they are going to get killed either by the hunter or a
               | predator.
               | 
               | I guess what I mean is that (in short), animals that are
               | bred to be eaten didn't have to exist in the first place,
               | we are literally creating them and making them suffer,
               | both in life and in death. So we're creating suffering
               | out of nothing.
               | 
               | Animals that live in the wild are gonna meet a bad end
               | regardless, so how much are we creating that suffering?
        
             | lm28469 wrote:
             | The only barbaric thing about it imho is the scale and way
             | we do it, not the process of eating meat in itself. There
             | is a big difference between eating 300gr of cheap meat from
             | a shady slaughterhouse every day vs once in a week piece of
             | meat hunted by a local friend.
             | 
             | But that's capitalism for you, we basically have meat
             | factories now, we have to make it cheap and in mass
             | quantities no matter the "moral" aspect of it
        
             | WanderPanda wrote:
             | This is interesting! So you're extrapolating the reduction
             | of babaricness that humanity expresses historically into
             | the future and that the threshold will be so low that
             | killing animals for food will be seen as one of the most
             | babaric thing humans do by then. I think for this to happen
             | we would need to shield us quite well from the inherent
             | babaricness of nature. ,,Why should I not eat animals, if
             | lions are doing it everyday?!" on the other hand we also
             | got better in shielding us from reality in form of video
             | games, netflix etc. On the flipside these virtual worlds
             | are often excessively babaric, e.g. horror movies or
             | shooter games. So in the end it is not so obvious to me
             | that we will see eating animals as babaric. Maybe we will
             | rather view it as very inefficient and primitive instead?
        
               | yesenadam wrote:
               | > the threshold will be so low
               | 
               | To take one "small" example, 7 billion male[0] chicks a
               | year are put into a "macerator", aka "chick grinding
               | machine". 7 _billion_. I don 't think it takes a very
               | "low threshold" to find this barbaric, just look at it
               | and think about it. If that's not "barbaric" (whatever
               | that means exactly), I'm not sure what would be.
               | 
               | https://en.wikipedia.org/wiki/Chick_culling
               | 
               | > So in the end it is not so obvious to me that we will
               | see eating animals as babaric
               | 
               | Many people already do, and have for many years.
               | 
               | [0] "the males of egg-laying chickens are killed as soon
               | as possible after hatching and sexing to reduce financial
               | losses incurred by the breeder."
        
               | marcosdumay wrote:
               | As soon as we learn how to cultivate some good quality
               | meat in-vitro, we will stop killing animals and start to
               | pretend to be different from the barbaric previous
               | generations.
               | 
               | That's what people do in every ethical aspect, we
               | circumvent it and pretend it's easy to solve, and then
               | criticize the people that can't circumvent it due to some
               | environmental issue. When that people is on the past,
               | there isn't even a problem with this.
        
               | hutzlibu wrote:
               | "As soon as we learn how to cultivate some good quality
               | meat in-vitro, we will stop killing animals and start to
               | pretend to be different from the barbaric previous
               | generations."
               | 
               | In the very long term maybe. But even if cheap, good
               | quality artifixial meat becomes avaiable by tomorrow -
               | killing animals for meat simply out of tradition - will
               | go on a long time.
        
               | InitialLastName wrote:
               | Sure, but that's the case with all traditions. Plenty of
               | things that westerners see as barbaric (slavery, ritual
               | genital mutilation, institutionalized torture) are still
               | common in the developed world (and often openly endorsed
               | by western governments).
               | 
               | Edit to add: The bigger picture is that for a set of
               | practices, even if they still occur on a smaller scale
               | than in the past, that's probably strictly an
               | improvement.
        
               | NegativeLatency wrote:
               | As a circumcised male who is disappointed that Guantanamo
               | bay is still holding prisoners I'd suggest that the west
               | still does many of the things you mentioned.
        
       | mrVentures wrote:
       | Anytime's a good time to go vegan.
        
         | sigzero wrote:
         | Sure but no.
        
       | tamaharbor wrote:
       | So that cow WAS laughing at me!
        
       | pleb_nz wrote:
       | I had no idea laughter had previously been believed as confined
       | to so few species.
        
         | wombatmobile wrote:
         | > I had no idea laughter had previously been believed as
         | confined to so few species.
         | 
         | What humans believe about other species tells us a lot about
         | humans, and nothing about other species.
        
         | kwhitefoot wrote:
         | I think it is more that it is now demonstrated to be a feature
         | of _at least_ this many species.
        
       | jadbox wrote:
       | I really want to hear audio samples of each of the species listed
       | as just to hear the range of laughter types amoung species!
        
       | [deleted]
        
       | bckr wrote:
       | This is one of the most beautiful ideas to have ever entered my
       | awareness.
       | 
       | Laughter is hard to beat in terms of sheer beauty--the more of it
       | in the universe, the better. And on same planet what's more!
        
         | peterburkimsher wrote:
         | Laughter is remarkable because, like clapping, it's contagious,
         | and it shares joy and happiness with a whole community.
         | 
         | In the process of laughing together, our bodies move in time,
         | which synchronises our muscle movements, which synchronises our
         | heartbeats.
         | 
         | Yes, laughter is very powerful, and is a wonderful force for
         | good in the universe :)
        
         | uhtred wrote:
         | I find it sad that not many people seem to laugh genuinely. So
         | many people do the fake laughter, wiping away imaginary tears,
         | at things which just aren't funny but which they seem to think
         | they should appear to find really funny in a group.
        
         | fastball wrote:
         | Not to be nitpicky but I would say there are definitely
         | situations where laughter is not a positive (edit: or
         | beautiful) thing - laughing at someone else's misfortune,
         | laughing in pain, etc.
        
           | lostlogin wrote:
           | Completely agree. However some of the most painful things
           | I've done have been objectively hilarious.
           | 
           | I wish I'd seen me drop a beehive.
        
             | nomilk wrote:
             | From Paul Graham's 'Taste for Makers' essay:
             | 
             | > humor is related to strength. To have a sense of humor is
             | to be strong: to keep one's sense of humor is to shrug off
             | misfortunes, and to lose one's sense of humor is to be
             | wounded by them.
        
           | bckr wrote:
           | Absolutely. Nevertheless, and to nitpick, "beauty" and
           | "positivity" are not isomorphic.
        
             | fastball wrote:
             | Sure, but I wouldn't call laughing as the world burns
             | "beautiful" either - more "psychotic".
        
               | bckr wrote:
               | see baskethead's comment nearby
        
             | amelius wrote:
             | But rats and cows don't know that.
        
               | timeon wrote:
               | How do you know?
        
             | jcims wrote:
             | I just have to say that i have had a word stuck on the tip
             | of my tongue for an embarrassingly long time, maybe six
             | months now. I've had occasion to use it several times
             | recently on a project but it was just stuck wherever words
             | get lost. I'm cruising HN in a post completely unrelated to
             | what I'm doing and there it is, in living color:
             | isomorphic.
             | 
             | I could feel the tension release in my brain as it sunk in.
             | Thank you!
        
               | hetspookjee wrote:
               | Now I'm looking for the word for the phenomenon that
               | you've described and we all can relate too!
        
               | narag wrote:
               | Now you can use it in all kind of improper situations and
               | laugh out loud isomorphically.
        
               | jcims wrote:
               | It's totally getting abused.
        
           | trollied wrote:
           | Indeed. I have a nervous laugh that sneaks out in less than
           | ideal situations :(
        
           | baskethead wrote:
           | Tragedy and comedy are the basis of all theater.
        
             | bouvin wrote:
             | "Tragedy is when I cut my finger. Comedy is when you fall
             | into an open sewer and die." Mel Brooks [1]
             | 
             | [1] https://www.goodreads.com/quotes/21470-tragedy-is-when-
             | i-cut...
        
             | fastball wrote:
             | But not all theater is meant to make you laugh?
        
         | the_af wrote:
         | I've read, but forgot where, that grinning -- not exactly
         | laughter, but a related act -- is also related to aggression or
         | has its roots in it. It's hard to deny exposed teeth in a wide
         | green -- think chimpanzee -- look at least _slightly_
         | threatening.
        
       | mch82 wrote:
       | For those wondering which animals...
       | 
       | > They found such vocal play behavior documented in at least 65
       | species. That list includes a variety of primates, domestic cows
       | and dogs, foxes, seals, and mongooses, as well as three bird
       | species, including parakeets and Australian magpies.
       | 
       | Quote from the UCLA Newroom article referenced in the OpenCulture
       | article, https://newsroom.ucla.edu/releases/animals-laugh-too-
       | ucla-an...
        
         | KineticLensman wrote:
         | The full list is in the original research article [0], in both
         | tabular and cladogram form.
         | 
         | [0] https://gabryant.scholar.ss.ucla.edu/wp-
         | content/uploads/site...
        
         | neuronic wrote:
         | Since this is so broadly spread among species I wonder if there
         | are other forms of laughing that aren't easily detected if you
         | don't know about it. Does some form of muscle spasms occur in
         | all of these animals?
         | 
         | Closely watching my cat now.
        
           | KineticLensman wrote:
           | > Since this is so broadly spread among species I wonder if
           | there are other forms of laughing that aren't easily detected
           | if you don't know about it
           | 
           | Yes. As per the original research article, some of the
           | vocalisations are outside the range of human hearing.
        
           | rcarmo wrote:
           | You should watch it closely anytime, it is very likely to be
           | plotting something even if you can't tell it's laughing
           | manically...
        
         | JumpCrisscross wrote:
         | So in summary: primates, social mammals, domesticated mammals
         | and vocal bird species?
        
           | marcosdumay wrote:
           | That short list is just social mammals and social birds. But
           | I can't say if this is not selection bias from the
           | researchers.
        
       | jiggawatts wrote:
       | My pet theory is that laughter isn't "just" a play signal, but a
       | teaching method in social animals where the young learn from
       | adults.
       | 
       | Slapstick is popular for a reason. We laugh _instinctively_ at
       | others ' accidents because being laughed at provides a negative
       | reinforcement for the individual that is the object of ridicule.
       | 
       | Being laughed at is _not_ pleasant, at all. It 's not "fun" or
       | "play". It _hurts_. Most people will do _anything_ to avoid being
       | laughed at, especially in public or social situations.
       | 
       | That's... the point! Being laughed at is negative reinforcement,
       | teaching us what not to do. The reason even our friends and
       | family will _hurt us emotionally_ in this manner when we make a
       | mistake is not because they 're cruel or mean, but because this
       | is the mechanism the human species uses to make sure every tribe
       | member learns the lessons they need to learn to keep each other
       | safe.
       | 
       | That's why we _all_ think it 's funny if someone slips on a
       | banana peel. We _point and laugh_ as the victim is crying in
       | pain.
       | 
       | We don't think it's funny if a banana tree falls on someone. We
       | don't laugh. We run over to help immediately.
       | 
       | In the first case the person wasn't paying attention and needed
       | their inattention corrected. They were at fault and needed to be
       | taught how to walk safely, like a young child.[1]
       | 
       | In the second case they were _not at fault_ and laughing wouldn
       | 't help them improve. They just need help.
       | 
       | If we didn't find laughing at silly people pleasant, we wouldn't
       | do it, and then... people would learn less and make more
       | mistakes. They -- our children or cousins -- might even die or
       | accidentally kill other tribe members killed through their
       | ineptitude. Hunting is _lethally_ dangerous. Mistakes must be
       | punished. Laughing minimises mistakes in our genetic kin and
       | tribe members on whom our own reproductive fitness depends.
       | Hence, laughing would be highly selected for in intelligent
       | social creates like apes and especially humans.
       | 
       | PS: It's a fun exercise to think of more scenarios where you
       | would laugh _at_ someone or similar scenarios where you wouldn
       | 't. You'll find that much of the time you _would_ laugh, the
       | person you 're laughing at would have probably learned a lesson
       | from that that's beneficial to you. (e.g.: would keep _you_ safer
       | if they made less mistakes in the workplace around dangerous
       | tools.)
       | 
       | [1] Young children are _especially_ hilarious to adults precisely
       | because they make so many mistakes that need correcting! We laugh
       | less at adults because there 's a delicate balance between
       | hurting people emotionally versus the expected benefit of the
       | lesson being taught. Similarly, senior people will laugh at the
       | mistakes of junior people, but the other way around is very rare.
        
       | goldroger9090 wrote:
        
       | erfgh wrote:
       | So a guy tickles a rat and the rat makes sounds. This apparently
       | amounts to "laughing" and somehow should make us feel the rat
       | more closely resembles a human.
       | 
       | What a load of bunk.
        
         | pygy_ wrote:
         | We're distant cousins, it's not surprising we have common
         | traits.
         | 
         | AFAIK, there is no single trait that is qualitatively human. We
         | distinguish ourselves quantitatively (our fine motor skills,
         | the size of our working memory and culture).
        
       | jrlocke wrote:
       | This is an unpopular opinion, and should be wielded very
       | carefully, but I think something often lost in these
       | conversations is that the existence of a human behavior in an
       | animal is not sufficient evidence that it's backed by the full
       | weight of the human-like mental states. It may well be, but
       | additional evidence must be presented.
       | 
       | As humans, we're strongly prone to anthropomorphize-I'm capable
       | of ascribing human feelings even to inanimate objects-and so are
       | prone to doing the above without rigor.
       | 
       | An extreme example: if you drop acid into the water in which a
       | paramecium lives, it will fire up its cilia and frantically try
       | to retreat. It's a single cell, there is no suffering or mental
       | states, but it sure looks like it.
       | 
       | An ant could have a sad looking death, but it surely cannot reach
       | the depths of human sorrow, and the related suffering, that a
       | similar event could elicit. It can't mourn the time it won't
       | spend with its children, or the ways its life could have gone.
       | 
       | I'm not proposing that everything between us and the paramecium
       | cannot suffer, but that arguments in these areas must go beyond X
       | has behavior Y, so X must have full mental state associated with
       | Y.
        
         | alecst wrote:
         | How come for you the starting point is that animals do not have
         | feelings and emotions like us, and that we have to have
         | evidence for it?
         | 
         | Why isn't the starting point that they do have feelings like us
         | and we have to find evidence against it?
         | 
         | Really, other animals are so similar to us on every dimension
         | except language that I wonder why people reason this way.
         | Mammals in particular. I've seen Denver the guilty dog. She's
         | behaving like she feels guilty. It's harder to buy an argument
         | that we are just projecting our human notion of guilt onto her,
         | rather than she simply feels guilt.
         | 
         | To put it another way, your position implies that all of these
         | things were experience -- laughter, grief, guilt, shame,
         | deception -- might have begun with humans. For me, that's a
         | position you need a lot of evidence for.
        
           | omginternets wrote:
           | >How come for you the starting point is that animals do not
           | have feelings and emotions like us, and that we have to have
           | evidence for it?
           | 
           | That's not exactly what he's saying. He's saying that the
           | overall _qualia_ of an animal is not that of a human. In
           | other words, despite (arguably) having certain experiences
           | that are similar (or even identical) to humans, the totality
           | is different in an important way.
           | 
           | More concretely, the argument is as follows: just because a
           | dog feels guilt doesn't mean (a) it's felt in an equivalent
           | way to humans, nor (b) that the overall experience of a dog
           | is equivalent to that of a human.
        
             | alecst wrote:
             | It's not clear how (b) is relevant to the conversation.
             | 
             | Regarding (a) I would have the exact same reply. Unless the
             | word "equivalent" is playing a critical role for you,
             | because it will be impossible to prove or disprove
             | equivalence. My experience of guilt may not even be
             | equivalent to yours strictly speaking, and we belong to the
             | same species, I assume ;-).
        
               | omginternets wrote:
               | (b) is relevant if you think that the qualia of
               | consciousness has a bearing on the ethics of eating meat.
               | 
               | >Unless the word "equivalent" is playing a critical role
               | for you, because it will be impossible to prove or
               | disprove equivalence.
               | 
               | To be clear: I haven't actually stated my position in
               | this debate.
               | 
               | More to your point: this entire debate is an ethical one,
               | so it's in the philosophical realm, so one should
               | disabuse oneself of the notion that anything is going to
               | be "disproven". The best we can aim for is a consistent
               | ethical system, and conversely, the pointing out of
               | inconsistencies.
               | 
               | This having been said, there's a contradiction of terms
               | if you simultaneously hold the belief -- as you seem to
               | do -- that eating animals is wrong because they are in
               | some sense "like us" while at the same time rejecting any
               | notion of (non)equivalence. You exactly appeal to
               | equivalence when you say, "Really, other animals are so
               | similar to us on every dimension except language". So you
               | are being inconsistent.
               | 
               | Therefore, if this is indeed your position, you're going
               | to have to grapple with the issue of threshold. How much
               | similarity is too much? Holistically, is the experience
               | of being $ANIMAL equivalent to (or within some bounds of)
               | the experience of being human? If there are differences,
               | which ones matter and which ones don't ... and in what
               | amount? Those are the questions the GP was asking, and
               | they are directly relevant to the argument.
        
           | me_me_mu_mu wrote:
           | Also animals have they own languages it's just they use smell
           | or grunt or bop
        
           | jrlocke wrote:
           | > I've seen Denver the guilty dog. She's behaving like she
           | feels guilty [therefore she likely experiences guilt].
           | 
           | I'm not sure I believe this, but there are other believable
           | explanations than yours: consider that humans and the dog
           | could share a non-mental dispositional state (something more
           | basic and hardwired into us) that leads to guilty actions.
           | You would acknowledge that some very simple animals function
           | in this way, and we as humans retain other core systems from
           | simpler times.
           | 
           | Human consciousness could be on top of this and not a
           | guaranteed consequence of it. We additionally rationalize and
           | experience this state and the actions we tend to take from
           | the guilty dispositional state-and as humans call that guilt-
           | but the dispositional state could exist on its own.
        
           | medstrom wrote:
           | Even more concerning, who's to say a simpler mind / smaller
           | brain would experience less sorrow? Maybe our large brains
           | actually put a cap on the sorrow we are capable of, due to
           | interference, and a simpler brain is capable of experiencing
           | pure sorrow so much more deeply?
        
         | naasking wrote:
         | > This is an unpopular opinion, and should be wielded very
         | carefully, but I think something often lost in these
         | conversations is that the existence of a human behavior in an
         | animal is not sufficient evidence that it's backed by the full
         | weight of the human-like mental states.
         | 
         | Here's an even less popular opinion: most human-like mental
         | states are a fiction, so the distinction you're trying to draw
         | probably doesn't really exist. The mental states you attribute
         | to suffering are merely a proxy for the behaviour you see from
         | both humans and paramecia.
        
         | anshumankmr wrote:
         | They are like us, but they aren't us. This is an example of the
         | former.
        
         | glenstein wrote:
         | I completely agree, and I think it's gotten out of control.
         | 
         | Lately it has become vogue to attribute human intelligence to
         | slime molds because they do complex things like solve mazes.
         | Then that behavior gets put side by side with, say, mice trying
         | to solve mazes.
         | 
         | Perhaps the most egregious, in my opinion, is the way people
         | unreflectively attribute terms to plants. I hate being a nerd
         | about definitions, but sometimes playing and joking around with
         | definitions serves to embed fundamental misunderstandings about
         | the natural world.
         | 
         | Here at hn and elsewhere, I've seen people insist that plants
         | can "feel", that they "communicate" and are "conscious", very
         | intentionally attempting to insist that it's same in the
         | deepest sense as what humans do.
        
         | gman83 wrote:
         | It's been pretty well demonstrated, for example in pigs:
         | https://escholarship.org/uc/item/8sx4s79c
        
       | MattGaiser wrote:
       | So what does that look like in a dog? My family has a dog and she
       | has a pretty nice life and is usually pretty happy, especially
       | when upsidedown having a belly rub. Are her flailing legs and
       | head and panting considered dog laughter?
        
         | niyaven wrote:
         | This is an accurate recording of dog laughter:
         | https://www.youtube.com/watch?v=nIj4WAP6BaI
         | 
         | According to research[1] whispering while playing with your dog
         | can initiate play more reliably. This is because our whisper is
         | closer to the frequencies of their laugh. It is even more
         | powerful than the play-bow.
         | 
         | [1] https://www.petalk.org/LaughingDog.pdf
        
         | xapata wrote:
         | Maybe wagging? Some dogs play-growl when playing tug.
        
         | joshschreuder wrote:
         | My dogs growl and yip when wrestling with each other, I feel
         | like this probably comes under the "non-aggressive
         | vocalisation" mentioned in the article.
         | 
         | Growling is obviously a well known sign of fear and aggression
         | but I guess the context is important.
        
           | niyaven wrote:
           | When playing dogs will indeed bark, growl and whines, but
           | also produce a forced exhalation: that's their laugh. Other
           | sounds can be produced in other contexts indeed, whereas this
           | dog laughter is exclusive to play.
        
             | sgt101 wrote:
             | Do you mean the "sorta sneeze" they do? I think mine do
             | that when they think/want that we are going on a walk or
             | into the garden to run about. It's a signal of "let's go
             | adventuring".
             | 
             | There's also the high pitched excited yip and then the
             | tongue out wiggling walk thing as well both of which might
             | be laughter I think.
        
               | throwawayForMe2 wrote:
               | I read about the "sorta sneeze" as being a call for
               | consensus for "let's go". When my dog did that as we were
               | getting ready to go out, I tried making a similar sound
               | back and the dog looked at me immediately like I finally
               | said something she understood!
        
       | Ccecil wrote:
       | Ferrets vocalize quite a bit and I fully expected them to be on
       | the list before I checked.
       | 
       | Anyone who has had one as a pet knows they laugh when tickled and
       | "talk" quite a bit. When they are happy they make a hard to
       | explain "cooing" noise as they go about their mischief.
        
       | yread wrote:
       | How did they electrically stimulate the neurons of the rats? They
       | wouldn't cut them open to study whether they are ticklish, right?
        
       | gtsnexp wrote:
       | This is where everything started :
       | https://pubmed.ncbi.nlm.nih.gov/31564493/
        
       | wqtz wrote:
       | Here is the paper >> https://gabryant.scholar.ss.ucla.edu/wp-
       | content/uploads/site...
       | 
       | I was curious about how they were defining laughter? I am a bit
       | skeptical to be honest about the idea of change in behavior when
       | we apply something to animals that will trigger a laughter in
       | human. We can't be sure if that change behavior is indicative of
       | joy and expressed through the vocalization of laugher.
       | 
       | The paper seem to be (I have skimmed) focused on group dynamics
       | to determine what is laughter. They indicate that how animals
       | signals they were having joy by making vocalization and it
       | indicates social play.
       | 
       | Here is a super cute video of how social play would work:
       | https://www.youtube.com/watch?v=L2EmA_UwIM8
       | 
       | But I am not sure if the animals are laughing though.
        
       | Closi wrote:
       | I wonder what their jokes are (outside of tickling) it's hard to
       | imagine a rat punchline.
        
         | Ankaios wrote:
         | As hard as it is to imagine a rat punchline, I find it even
         | harder to imagine the tiny little cups they'd put the punch in.
        
         | coldtea wrote:
         | Ever watched Tom and Jerry?
        
         | quicklime wrote:
         | I wonder if a rat would find this magic trick funny:
         | https://time.com/4145151/orangutan-barcelona-zoo-magic-trick...
        
         | yololol wrote:
         | http://bash.org/?334762
        
         | wombatmobile wrote:
         | Q: What did the duck say when he bought lipstick?
         | 
         | A: "Put it on my bill."
        
         | purplecats wrote:
         | perhaps more visceral humor in the form of schadenfreude
        
         | whythre wrote:
         | I doubt any of the laughs are provoked by verbal 'jokes.' But
         | rats are very smart, and play (wrestle) around with each other.
         | It's probably not too different from kids giggling as they
         | engage in rough and tumble play.
        
           | bradrn wrote:
           | I've seen Australian magpies do exactly the same thing. I was
           | thoroughly unsurprised to see that they are in the list of
           | laughing animals as well.
        
           | dotancohen wrote:
           | I've seen a rat punchline.
           | 
           | One of my rats loved to nibble pencil erasers. She would find
           | all sorts of creative ways to get the eraser from me. With
           | rats, who need stimulation, it's good to have arms wars. I
           | don't put the eraser in an impossible spot, rather a harder-
           | to-get-to spot.
           | 
           | She figured out that if she distracts me while doing
           | homework, I'll turn my attention to the distraction. She
           | could then run around from the other side to scoop up my
           | eraser and take it somewhere to nibble. I began to catch her
           | in the act and call her name as if I'm frustrated (but
           | laughing) when she does this, like I do with my children
           | today when they put a clothespin on my shirt then run off.
           | One time, she picked up the eraser and ran off. But I was too
           | busy to play along right away, I just let her scoot off. So
           | she sat there, with the eraser, waiting for me to finish and
           | then chase her down. Apparently she was no longer stealing
           | the eraser to nibble, rather, it had become a joke between
           | us.
        
             | sgt101 wrote:
             | you love your rat and that's really sweet - you made my
             | morning.
        
       | kingkawn wrote:
       | The supposed differences between us and other creatures are
       | pretenses for our violence against them, not scientific
       | observation or data.
        
       | spoonjim wrote:
       | I've never understood why tickling feels so unpleasant but makes
       | me laugh uncontrollably.
        
       | 01100011 wrote:
       | I wonder what Gary Larson will do with this discovery...
        
       | [deleted]
        
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