Blue, green, amber: Someone’s eye color immediately attracts our attention. But there’s something unusual about human eyes: ...

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

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: Eye color comes down to a pigment ...

Gray and green eye colors are the rarest in the U.S., although extremely rare red color can occur with albinism. Eye color is determined by the amount of melanin in the iris, with more melanin making ...