Technically, a bison (Bison bison) is the type of hebivorous hoofed animal of the Bovine family found in the US, Europe and a few other areas but a bufflalo is anatomically different. Bison have a well developed hump over the sholders but bufflao lack that. Bison have fairly thick coats but buffalo Bubalus bubalus) have little hair (except as juveniles) and either take mud baths or dust baths to protect their skin from sun burn. Bison horns are relatively small compared to buffalo that can reach five feet or more from tip to tip. Most buffalo can be domesticated (except for the Cape Buffalo of Southern Africa which is a very dangerous animal) but bison do not even tame well. In Asia, the buffalo apparently has evolved into a few different races, perhaps even species, the Chinese buffalo has a shorter horn span, and progressively from GuangXi Province to Vietnam, the horn span increases. Buffalo in Taiwan are a mix of the Filipino long horned variety and the Chinese variety with the later being found close to TaiPei and the former in the southern areas of the island. The ones that were introduced into Australia are the long-horned variety. Buffaloes never became a work animal in America because initially it was easily to transport slaves and then the industrial revolution removed the need for work animals. They are widely used in Asia because farms are to small to justify the expensive machinery. With the Hmongs, in Laos, a buffalo was valued highly and represented substantial wealth. A few wild gaur still exist...they are a type of buffalo standing about 6 feet at the shoulder and it is rare to see them in the wild. I have only seen two, both of which were north of Cheng Mai, Thailand. And to counter the ridiculous answers, A water buffalo is a tanker trailer used by the army to transport water and you can certain wash your whole body in it.