All Blue-Eyed People Share One Common Ancestor

A group of scientists at the University of Copenhagen has determined that all blue-eyed people share one common ancestor from 6,000–10,000 years ago.

What colour are your eyes? Teaching the genetics of eye colour

The Bizarre Bird That's Breaking the Tree of Life

What colour are your eyes? Teaching the genetics of eye colour

Eye color - Wikipedia

Eye color percentages around the world and what causes eye color

Bonobos And Humans: Kindness May Have An Ancient Connection

One Common Ancestor Behind Blue Eyes

What Is The Rarest Eye Color?, Blog

Evolution of the Eye

5 Facts You Might Not Know About Blue Eyes

Eye Color: Unique as a Fingerprint - American Academy of Ophthalmology