Did you know that people with blue eyes have a single, common ancestor?
A team at the University of Copenhagen have tracked down a genetic mutation which took place 6-10,000 years ago and is the cause of the eye colour of all blue-eyed humans alive on the planet today.
“Originally, we all had brown eyes. Variation in the colour of the eyes from brown to green can all be explained by the amount of melanin in the iris, but blue-eyed individuals only have a small degree of variation in the amount of melanin in their eyes and from this we can conclude that all blue-eyed individuals are linked to the same ancestor,” said Professor Eiberg from the Department of Cellular and Molecular Medicine.
Full article: Science Daily