Like most human traits, blue eyes are determined by genes, and no two people have exactly the same hue. It works a lot like ...

All blue-eyed people have one ancestor in common, born around 6,000 to 10,000 years ago. Blue eyes are caused by a gene mutation. For years, researchers had searched for it on the OCA2 gene.

A 1.5-year-old boy from Bulandshahr, Uttar Pradesh has gained attention due to his unique trait of eye colour changing based ...