@bea2345 Ok. I once had a horse and, before that, I had a neighbor. I noticed that my horse had a multi colored hoof, and I noticed that the hair directly above whatever color was on the hoof, was pale or dark, the same as the hoof. In other words, she had a stripe of white on her other wise brown leg, but that strip of white extended through, down the “nail” of the hoof. Per my neighbor, when I was 8. Have you ever seen a true blond with a black or dark birthmark on his head? The hair growing in the birthmark area is black, in contrast to the rest of the blond hair….The stripes on a Zebra’s skin may be a very dark brown, which may cause the Zebra’s body to register “grow black hair here”....if that makes sense. My grandson had the same thing up until he was about four (it was SO COOL!!!), but since then his hair has turned to brown, and if there is any “black” you can’t see it now. It’s whatever color the skin is. And…the color of the skin depends on the pigment. So, literally, you could say, the Zebra is white, with black pigment stripes on the skin, which = black hair.