American Bison Bison are brown. They are big. Bison have a big head. Bison have horns.   Bison run fast.   A baby is called a calf. Bison eat grass.   Bison live in parks.   Wolves eat bison. Return to NatureScapes    Note: All photographs taken with a digital camera in Yellowstone National Park, Wyoming (July 1999). Developed by Annette Lamb and Larry Johnson, 6/99. Updated 11/00.