Gray and green eye colors are the rarest in the world. Eye color is determined by the amount of melanin in the iris, with more melanin making eyes darker. A genetic mutation 10,000 years ago caused ...

“From Brown to Evergreen: How Eye Colors Evolved” Your eyes may seem ordinary when you catch your reflection each morn ...

I'm not sure I've ever met a kitten I didn't immediately fall in love with. As soon as I laid eyes on both of my cats (who were each just eight weeks old when I adopted them), it was love at first ...