Albino squirrels have pink or blue eyes and no dark pigments anywhere on their bodies, according to the Georgia Department of Natural Resources' Wildlife Resources Division. "Keep an eye out near ...

Professor Lars Schmitz joins WIRED to guide us through a giant tree of life mapping the evolution of eyes in the animal ...

While violet hits your eye with a specific wavelength, purple only exists in your perception — a clever construct built from ...

Can all living things—plants, insects and bacteria—be albino? Lilliana Hitchcock ... their hair, skin and eyes will lack color. But other life-forms produce a variety of pigments in addition ...

From helping them find mates to bettering their ability to camouflage, marks on animals and birds serve various purposes.