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Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES

Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES. 5. Crocodilians. Have powerful jaws, a lengthy snout & sharp teeth. Large ones-yank on mammals & birds into water, rip them apart by violently spinning their body then gulp the chunks down.

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Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES

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  1. Lecture 6ANIMAL EVOLUTION: THE VERTEBRATES

  2. 5. Crocodilians • Have powerful jaws, a lengthy snout & sharp teeth. • Large ones-yank on mammals & birds into water, rip them apart by violently spinning their body then gulp the chunks down. • Adjust their body temperature with behavioral and physiological mechanisms. • Have complex behavior; guard nests and assist hatchlings into water-similar to birds.

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