The term 'Buffalo Cousin' refers to two animals, the YAK and the BISON. The YAK is a large, long-haired bovine found mainly in the Himalayan region of South Central Asia. It is a member of the cattle family and is used for its milk, meat, and hide. The BISON is a large, shaggy-haired bovid native to North America and Europe. It is the largest land mammal in North America and is an important part of the American culture and history. Both the YAK and the BISON are related to the Buffalo, hence the term 'Buffalo Cousin'.