Do you have blue eyes? We talked to experts to discover curious facts about baby blues. Like, are all blue-eyed people ...

As much as 80% of the global population is believed to have brown eyes, while only 8 to 10% of people worldwide have blue eyes, 5% have hazel eyes and about 2% of all people have green eyes. But brown ...

This is a spin out. Every person on the planet born with blue eyes shares the same genetic mutation inherited from a single human ancestor. Danish researchers concluded a decade-long study which found ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...