Your Inner Fish: Your Inner Reptile

Your Inner Fish: Your Inner Reptile

Wednesday, April 16 at 10:00 p.m.

Paleontologist Dr. Neil Shubin turns to the reptiles to reveal a history of life on Earth -- hidden within the human body.

Key events in our evolutionary saga began about 250 million years ago, when ferocious, reptile-like animals that roamed the Earth started the process of evolving into shrew-like mammals. Our reptilian ancestors left their mark on many parts of the human body, including our skin, teeth and ears.

Photo: Paleontologists Roger Smith and Neil Shubin looking at Gorgonopsid fossil.