"Fast Evolution" in the Duck-Billed Hadrosaur

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The duck-billed dinosaurs (order Ornithischia, family Hadrosauridae) were a diverse group that allegedly lived 90 million years ago, with hundreds of specimens unearthed by paleontologists in China and North America. Hadrosaurs are noted, of course, for their expanded duck-like bills, solid crests, and fleshy combs (a projection of fleshy material above the head).1 Much has been learned about hadrosaurs due to the discovery of se… More…

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Source: icr.org

    

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