Eyes that are not brown do not have different color pigments. Instead, they have less melanin. An iris with the least melanin will appear blue, while those with a little more melanin may appear ...

Ever wondered if the latter is the case? There are four main eye colors in the human population. These are brown, blue, hazel and green. We talked to Dr. Purnima Patel, spokesperson for the ...

Several genetic markers contribute to our final eye color shade. A baby born with blue eyes can have brown eyes by their 1st birthday.

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 has a fascinating history. All blue-eyed people can trace their ...

Now scientists have harnessed the Internet’s abundant wild cat photographs to chart the transition from brown eyes to colors such as green and blue—and found something of a gray area.