Predators don't dominate the Cretaceous, plant eaters do. And their bodies are built to take a beating. The latest science reveals the anatomical secrets that made the world's largest vegetarians such successful survivors in a world of claws and teeth. |
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Title: | The Defenders | |
Air Date: | December 6, 2009 | |
Runtime: | 45 min | |
Genres: | History Nature | |
grasshopper rex : I'm working on getting links for it