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       xkcd - A Webcomic - Herpetology (867)
        
       Image:
 (PNG) herpetology.png
        
       Birds are Aves, which is part of the clade Theropoda, which is in
       Saurischia, which is in Dinosauria. Those birds outside our
       windows are dinosaurs. We can clear out the rest of our brains
       because we now have the best fact.
        
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