Stream ItThe Defenders
Predators didn't dominate the Cretaceous period - plant-eaters did. And their bodies were built to take a beating. The latest science reveals the anatomical secrets that made the earth's largest vegetarians successful.
Aired: Dec 13, 2009 Genre: DocumentaryCasts: Robert Bakker Peter L. Larson Timothy Larson Richard CoyleProducers:Duration: 44m Rating: 0 Country: United States of America Production: Dangerous Films
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