Over 90% of the world's yak population of nearly 15 million lives on the Tibetan Plateau in the Himalayas.Lamps in Tibetan monasteries are fuelled by yak butter.
 Yak cheese has higher amounts of heart-healthy fats. In winter a wild yak can survive temperatures as low as - 40 degrees (C). A yak’s warm coat provides insulation through a thick outer coating of long hair and a dense inner coating of matted, shorter fur.