Cattle and Bison

The tribe Bovini or wild cattle are medium to massive bovines that are native to Eurasia, North America, and Africa. These include the enigmatic, antelope-like saola, the African and Asiatic buffaloes, and a clade that consists of bison and the wild cattle of the genus Bos. Not only are they the largest members of the subfamily Bovinae, they are the largest species of their family Bovidae. The largest species is the gaur (Bos gaurus), weighing up to 1,500 kg (3,300 lb).

Bovins and humans have had a long and complex relationship. Five of seven species have been successfully domesticated, with one species (cattle) being the most successful member of their lineage. Domesticated shortly after the last ice age, there are at least 1.4 billion cattle in the world. Domestic bovines have been selectively bred for beef, dairy products and leather, and serve as working animals. However, many species of wild cattle are threatened by extinction due to habitat loss to make room for cattle farming as well as unregulated hunting. Some are already extinct like the aurochs, two subspecies of European bison and perhaps the kouprey.