Defenders in the Rocky Mountains and Great Plains
Bison, © Walter Novak

You may also be interested in:

Fact Sheet
Peregrine falcons are the fastest-flying birds in the world – they are able to dive at 200 miles per hour.
Fact Sheet
Prairie dogs are burrowing rodents that live in large colonies in the grasslands of central and western North America.
Fact Sheet
Called "skunk bear" by the Blackfeet Indians, the wolverine is the largest terrestrial member of the weasel family. It has a broad head, small eyes and short rounded ears.