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Your Inner Fish

Episode 2: Your Inner Reptile - Preview

Preview: Episode 2 | 30s

"Your Inner Reptile" traces our hair, skin, teeth, jaws and sense of hearing back to reptilian ancestors — from ferocious beasts that ruled the Earth to a little shrew-like animal that lived 195 million years ago.

Aired: 04/15/14

Rating: NR

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