Your Inner Fish is a 2014 English-language Documentary series. Your inner fish stars Neil Shubin in the title role. It took more than 350 million years for the human body to take shape. Anatomist Neil Shubin reveals how our bodies are the legacy of ancient fish, reptiles and primates, the ancestors you never knew were in your family tree. Our bodies carry the anatomical legacy of animals that lived hundreds of millions of years ago.