Your Inner Fish

Your Inner Reptile

Episode 2 | 54m 46s Video has closed captioning.

A key moment in our evolutionary saga occurred 200 million years ago, when the ferocious reptile-like animals that roamed the Earth were in the process of evolving into shrew-like mammals. But our reptilian ancestors left their mark on many parts of the human body, including our skin, teeth and ears.

Aired: 04/16/14

Expires: 12/31/20

Rating: NR

Problems Playing Video? | Closed Captioning