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

Your eyes can tell you more about your health than you may realize. For instance, your risk of losing your hearing may be ...

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 ...