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

Red is the rarest hair color, but to understand why that’s the case, you need a basic grasp of the science. There’s a lot ...

But it’s not quite that simple. See, we like to think there’s a rainbow of eye color options out there—violet, blue, gray, hazel, green, brown, near-black—but scientists believe that they ...