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 ...

When it comes to dogs, you've probably noticed that most of them have brown eyes, which is why meeting one sporting a different shade really makes them stand out. While you've probably seen a few pups ...

Eyes are not just windows to the soul—they're kaleidoscopes of human diversity. From deep brown to icy grey, eye colours span a spectrum shaped by genetics and melanin levels. The six primary eye ...

When it comes to dog's coats, merle one of the most jaw-dropping color patterns around. Also known as "dapple," the end result looks like a breathtaking splatter painting—irregular splotches of dark ...