This pigment is known as melanin a lot of melanin leads to darker colors, like dark brown or black, while less melanin leads to lighter colors, such as hazel or blond, Live Science previously reported. These cells produce a pigment that determines the color of hair and skin. Here's why: Every piece of hair - both light and dark - grows from a follicle filled with melanocyte cells, according to a 2005 review in the Journal of Investigative Dermatology. In fact, zebras actually have more light-colored hair than dark - their bellies are usually light - so it may seem that zebras are white with black stripes.īut that's not the case. Although zebras have black skin, different developmental processes determine their fur color, just like a light-skinned person can have dark hair, Caro said.
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