The fascinating variety of cat eye colors results from some fascinating genetic interactions, development, and adaptation due ...

That mirror you look into every morning is revealing more about your pain tolerance than you ever imagined. The same genes that determine whether you have brown, blue, green, or hazel eyes are also ...

If you're a driver (or even a passenger), you've seen them: small color-coded plastic markers in the center, or sometimes at the edge, of the road. They have various names; in the U.K., you'll hear ...

Floridians are jumping on the newest TikTok trend: changing your eye color. The young and old have discovered that turning brown eyes blue or hazel eyes green can be as simple as putting in color ...

Charlotte Bronte once wrote: "The soul, fortunately, has an interpreter—often an unconscious, but still a truthful interpreter—in the eye." While this exceptional writer didn’t have the benefit of ...