Post AkUDJu5joF0kMcCMWe by futurebird@sauropods.win
(DIR) More posts by futurebird@sauropods.win
(DIR) Post #AkUAfr3FUeadRXoG3c by futurebird@sauropods.win
2024-07-31T09:40:17Z
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Are there any large eusocial sea creatures? Sponges are colonial, fish live in schools... but to be eusocial *reproduction* must be a specialization. A species can only be called eusocial if there are reproductive and non-reproductive castes. Clown fish might qualify, although their "colonies" are not very large and non-reproductive can transition to being the reproductive. Really what I'm looking for are sea ants. Are there any sea ants?
(DIR) Post #AkUDAK0uZoCprdN7XE by tompearce49@mastodon.scot
2024-07-31T10:07:55Z
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@futurebirdAnd now I really want to know the answer to that question!
(DIR) Post #AkUDJu5joF0kMcCMWe by futurebird@sauropods.win
2024-07-31T10:09:51Z
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@tompearce49 It looks like there are some eusocial shrimp, but I'm having trouble finding more information on them. I will share more as I find out.
(DIR) Post #AkUDYrznspfKCwYj7A by scattermutant@mastodon.nz
2024-07-31T10:12:36Z
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@futurebird @tompearce49 Yes, that's what I'm finding. Genus Synalpheus.https://academic.oup.com/jcb/article/19/2/283/2419056
(DIR) Post #AkUN0Y2qYM3S1jFtE8 by futurebird@sauropods.win
2024-07-31T11:58:29Z
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@BradRubenstein @dantheclamman.blog uh ohhttps://sauropods.win/@futurebird/112440950848176842
(DIR) Post #AkURGGAdB3AJ2YdyJE by futurebird@sauropods.win
2024-07-31T12:46:07Z
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Here is a great video about some shrimps that are very much like sea ants!https://www.youtube.com/watch?v=7fCtt9N0Vew
(DIR) Post #AkUSa5SQoigxYozJrc by bewo001@darmstadt.social
2024-07-31T12:53:23Z
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@scattermutant @futurebird @tompearce49 fascinating! wikipedia:"S. regalis has the largest colonies and the largest reproductive skew of all eusocial shrimp. Its colonies can consist of up to 350 organisms, who are related to each other with an average of r=0.50, with one queen.[5] Furthermore, many colonies show heterozygote excesses.[10] This led researchers to conclude that outbreeding is common in the S. regalis, and at least one of the sexes leaves its natal home to find mates.The queen is the sole breeder of the colony. Studies show that there is a strong correlation between the size of the queen and the size of the colony, which implies that there is a parallel between growth of the breeding female and her colony"https://en.wikipedia.org/wiki/Synalpheus_regalis
(DIR) Post #AkUlL8Lbgk8fJDNYxs by darabos@mastodon.online
2024-07-31T16:31:02Z
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@futurebird Tangentially related to this excellent thread: Why have insects never evolved for life in the sea? They seemingly conquer every environment except the one they came from.
(DIR) Post #AkVdt2gMeXk16phpvE by linebyline@bytetower.social
2024-08-01T02:42:18Z
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@futurebird I did not know that about clownfish. I was under the impression that males become females when necessary, but both are reproductive.Skimming the Wikipeida article: "Only two anemonefish, a male and a female, in a group reproduce" but as you say when the lead female dies, the males move up in the hierarchy. Neat. Today I learned. Thanks!