Videos are generally available for preview to non-members as short clips. Limited full-length titles are also available. Log In to view the full length title.
A key moment in the 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 these reptilian ancestors left their mark on many parts of the human body, including skin, teeth and ears. Part of the “Your Inner Fish” series.
