To truly see if black eyes are a signal, the team needed to do an experiment. Somehow, they had to manipulate the color of a fish’s eyes to see how other guppies would react.

Like most human traits, blue eyes are determined by genes, and no two people have exactly the same hue. It works a lot like individual fingerprints, making our eyes two of the most distinctive parts ...

Taking your eye color into consideration can help you figure out which mascara shade is best for you. While black works universally, there are so many other fun colors to explore.

If you have the rarest hair color and eye color combination, ... green, brown, near-black—but scientists believe that they’re all slightly different manifestations of blue eyes or brown eyes.

People with blue eyes may be more likely to become alcoholics, a new study suggests. Genetic researchers at the University of Vermont said their findings could help doctors learn more about the ...

Rather than opting for the surgery, Paula Santos of Fort Lauderdale bought color contacts to change her brownish-black eyes to green. She paid $35 online, wowed by the images of women with ...