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.
"Your Inner Reptile" on Your Inner Fish airs on Wednesday, April 16th at 9:00 pm on channels 3 and 3-1.