Like most human traits, blue eyes are determined by genes, and no two people have exactly the same hue. It works a lot like ...

Well, if you have brown eyes, congratulations—you’re ... While not the rarest, hazel eyes are also not the most common eye color around. Blue-eyed folks may be rarer, but their eye color ...

The eyes of a Cuban rock iguana, a gargoyle gecko, a blue-eyed ... compound eyes (brown spot, far right) to avoid predators in the water column. A female (lower left) spends most of her life ...

Blue eyes are caused by a gene mutation. For years, researchers had searched for it on the OCA2 gene. The OCA2 gene determines how much brown pigment is in our eyes. But what they were looking for ...

Lighter eyes are idealised across societies, which often posit brown eyes on the most ‘boring’ end of ... when those windows are a shade of ocean blue, looking out into cloudless skies.

It seems a little unfair. The ladies love blue eyes, and babies already have a cuteness advantage. The iris is the muscular ring around the pupil. And its color depends on a protein called melanin ...