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 ...

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 ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. They say the eyes are "the window to the soul" and there's certainly ...

Human eye colour is one of the most striking and memorable features, ranging from deep brown to icy blue, rare green, and shifting hazel tones. Behind this diversity lies a fascinating interplay of ...