May 13, 2013

By any reasonable definition, Tyrannosaurus rex is more closely related to sparrows than to Stegosaurus

Birds aren't descended from dinosaurs. They are dinosaurs. Which means that the fastest animal alive today is a small carnivorous dinosaur that preys mainly on other dinosaurs, which it strikes and kills in midair with its claws. This is a good world. (Source: Randall Munroe's xkcd)

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