Your Inner Fish

Our body is the legacy of our ancient animal ancestors. Meet them in this series.


  • Your Inner Reptile

    Learn which parts of our bodies we’ve inherited from our reptilian ancestors.
  • Your Inner Fish

    See how the genetic legacy of a fish can be seen today in our own DNA.

About Your Inner Fish

How did your body become the complicated, quirky, amazing machine it is today? Anatomist Neil Shubin uncovers the answers in this new look at human evolution. Using fossils, embryos and genes, he reveals how our bodies are the legacy of ancient fish, reptiles and primates - the ancestors you never knew - are in your family tree.