Add Yahoo as a preferred source to see more of our stories on Google. Eye color comes down to a pigment called melanin. The more melanin your irises produce, the darker your eyes. Your genes are the ...

Q: What fascinates you about the eye? A: The eye is an absolutely fascinating organ because it's an organ of extreme perfection, as Darwin has called it. We are able to adjust the focus, we are able ...

Here’s what you’ll learn when you read this story: Eye color comes down to a pigment called melanin. The more melanin your irises produce, the darker your eyes. Your genes are the main thing ...

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 ...