Want better video quality? Sign in to access HD streaming!


Want to watch better-quality PBS Video? Sign in to access HD streaming!

When you sign in, you'll become a PBS Insider and we'll share your contact information with your local PBS station. You may receive updates to help you stay connected with what's happening online and in your community. Privacy Policy


Your Inner Fish

  • Aired: 04/09/2014
  • 55:11
  • Expires: 06/29/2014
  • Rating: NR
Our arms, legs, necks and lungs were bequeathed to us by a fish that lumbered onto land some 375 million years ago. The genetic legacy of this creature can be seen today in our own DNA, including the genes used to build our hands and limbs.
Embed Options
Close ×
Your Inner Fish
See how the genetic legacy of a fish can be seen today in our own DNA.
Please copy this text to your clipboard.
Problems Playing Video ?
PBS Anywhere - funder area
Related Links:


Watch videos from your favorite PBS KIDS shows with the PBS KIDS Video app for your tablet or phone.

Downton Abbey Collection

Bring home the complete collection: DVDs, Blu-rays, books, gifts and more. Visit ShopPBS.


WPBT2 helps all of us explore new worlds and ideas. Give Now