They weigh between 1800 and 2000 pounds. They are the biggest land animals in North America. Relatives are goat, sheep, musk-ox, yak, and ox. The two kinds of bison are wood bison and plains bison. The bison's enemies are grizzly bears, packs of wolves, coyotes, and mountain lions.
Special features are grooves in the feet, and a thick coat of fur.
The outer layer of fur is waterproof. All rights reserved.