Add Yahoo as a preferred source to see more of our stories on Google. They say that eyes are the windows to the soul. Often, a person's eye color is the first thing we notice about them when we meet ...

Gray and green eye colors are the rarest in the U.S., although extremely rare red color can occur with albinism. Eye color is determined by the amount of melanin in the iris, with more melanin making ...

Every other Friday, the Outside/In team answers a listener question about the natural world. This week's question comes from Liz in Pittsburgh, Pennsylvania. Alex Funk: Albino animals in nature are ...

What determines the shade of your peepers? Experts weigh in on the rarest eye color in the world—and the genetics behind it. It’s said that our eyes are the mirrors of our souls, so it makes sense ...