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Episode of Your Inner Fish

Your Inner Reptile

Season 1, Episode 2 of 3
More from this Series

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.

Previously Aired

day time channel
4/16/2014 10 p.m. PBS 6
4/17/2014 3 a.m. PBS 6
4/17/2014 1 p.m. PBS 6
9/4/2016 8 a.m. PBS 6

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