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For Some Feathered Dinosaurs, Bigger Not Always Better

Every kid knows that giant carnivores like Tyrannosaurus rex dominated the Cretaceous period, but they weren’t the only big guys in town. Giant plant-eating theropods — close relatives of both T. rex and today’s birds — also lived and thrived alongside their meat-eating cousins. Now researchers have started looking at why dinosaurs that abandoned meat in favor of vegetarian diets got so big, and their results may call conventional wisdom about plant-eaters and body size into question. Leer más.

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