 White bison are sometimes born in captivity to parents with cow DNA. Yellowstone staff have not confirmed the recent birth, but Looking Horse says this one, which has been photographed by tourists, is completely wild and fulfills the white buffalo calf woman prophecy. He says she came to the Lakota people two millennia ago and taught them how to live peacefully together and pray. And she said next time she returns... Mother Earth, Ujumaka...