Blue-eyed humans have a single, common ancestor

Researchers at the University of Copenhagen have discovered that "all blue-eyed individuals are linked to the same ancestor. They have all inherited the same switch at exactly the same spot in their DNA."

The rest of the article can be read here.

How cool is that?!

I've been vaguely interested in eye color since I did a cute little kiddie science project about it in 1st grade.