Bison have inhabited the Grand Teton and Yellowstone region since prehistoric times. They live in the area year-round, favoring grasslands in the summer, where they eat mostly grass and sedges.

Mule Deer
Often seen in brushy areas, forests and open grasslands, mule deer eat mostly grasses and shrubs. Their large ears, resembling mule’s ears, are helpful in detecting approaching predators, of which they have a few: wolves, coyotes, cougars and bears.