For most of human history, green eyes didn’t exist. Understanding why they do now means rethinking what we know about evolution itself.

Cat-like eyes show up in searches everywhere. If the internet is this obsessed with eye color, how rare are green eyes in humans? They’re uncommon enough that seeing them still feels like spotting a ...

Red hair and green eyes is a combination that’s considered rare. The chances you or your child will have it are based on whether your immediate family members had red hair or green eyes, though it can ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Find yourself transfixed when you come across green eyes? It's no ...