What is Bison?
Bison is another word for buffalo. The great American bison is the largest land mammal in North America since the end of the Ice Age. Estimates of the pre-European herd size vary from 30,000,000 to 70,000,000 animals and they ranged over most of North America. There are three subspecies of bison: the Plains bison, Wood bison, and the European Wisent.