Word: thescelosaurus
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Dates: during 2000-2000
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...society. Effectively negating years of pessimism over the chances of ever finding one, researchers at the North Carolina Museum of Natural Sciences in Raleigh have uncovered the softball-size remains of a heart inside the fossilized skeleton of one of their dinosaurs. And what a find it is: The Thescelosaurus pumper, which may be the first dinosaur heart ever seen by human eyes, is decidedly un-reptilian; it's divided into four chambers and fed by a single aorta. This structure, scientists explain, suggests that the dinosaur in question was warm-blooded, like birds and mammals, rather than cold-blooded...
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