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Leptoceratops Gracilis
Illustration: Leptoceratops gracilis dinosaur
WALLPAPER
Leptoceratops gracilis likely survived for about 50 million years before going extinct at the end of the Cretaceous period.
©National Geographic Society
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Prehistoric Features
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News: Prehistoric Cave Discovered; 8 New Species Thrive Inside

Quarry workers in Israel recently uncovered an ancient cavern that houses an entirely unique ecosystem, including eight never-before-seen animal species.

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Article: Big Bad Bizarre Dinosaurs

Findings of bizarre Mesozoic fossils prompt John Updike to ask: What has evolution wrought?

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