Synopsis: Perfect Predators: The Cretaceous Period spawned walking death machines with a savage combination of speed, eyesight, brainpower, and razor-sharp implements. The latest science reveals the anatomical secrets of these bloodthirsty carnivores.
The Defenders: 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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