Bison Pictures
-
Close-Up of a Bison
With their large, sharp horns, bison are formidable foes. During mating season, bulls fight for the right to breed with harems of cows, but rarely duel to the death.
-
Bison and Her Calf
Bison cows give birth after nine months and nurse their calves for about a year. Calves are able to stand shortly after birth, but remain vulnerable to wolves and bears until they reach maturity at the age of about three years.
-
Two Male Bison Fighting
Two male bison spar in a field. Males battle for mating primacy, but such contests rarely turn dangerous.
-
Herd of Bison
Conservation programs at parks and zoos have combined forces with farmers, working to increase bison populations. Today there are about 200,000 bison in ranches and reserves.