A study by experts at the University of Copenhagen found that every single person with blue eyes shares a common ancestor.

Blue-eyed people have a higher risk of melanoma ... chief among them the OCA2 gene. The HERC2 gene is another that plays an ...

Blue eyes are caused by a gene mutation. For years, researchers had searched for it on the OCA2 gene. The OCA2 gene determines how much brown pigment is in our eyes. But what they were looking for ...