Video Chevron icon It indicates an expandable section or menu, or sometimes previous / next navigation options. Science

What all blue-eyed people have in common

Description Angle down icon An icon in the shape of an angle pointing down.

You've probably wondered, why do we have the color eyes we do? It comes down to our genes. And scientists are really starting to get to the bottom of it.

Produced By Matt Johnston. Research by Lauren Friedman.

 
Follow TI: On Facebook
Chevron icon It indicates an expandable section or menu, or sometimes previous / next navigation options.

Jump to

  1. Main content
  2. Search
  3. Account