The dinosaur that lost its teeth
0:51
CNN
The dinosaur that lost its teeth
Scientists believe this 154-million-year-old dinosaur started out with a full set off teeth, but lost them over time.
2016年12月22日
Dinosaur Teeth Fossils
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Rare 84 million-year-old dino tooth found in US creek with clues about its death
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T-Rex Teeth Size
How Many Teeth Did T. Rex Have? 60 Banana-Sized Reasons You Didn’t Want To Mess With These Dinosaurs
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T. rex may not have had ferocious, sharp teeth after all, new study says
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Harrison Duran is a paleontologist. He works to find dinosaur fossils and bones. Then he and his team clean and preserve them. He walks us through the steps, which include excavation, cleaning off sediment, and sometimes a special gluing process to stabilize the bones. He's incredibly detailed and careful in the process to ensure he doesn't damage anything. | Insider Science
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