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

Problems Playing Video? | Closed Captioning