Bison are huge animals, ranging in length from 3.6 m to 3.8 m in males to 2.13 m to 3.18 m in females. They are also tall animals, with the height at the shoulder ranging from 1.67 m to 1.86 m for males and 1.52 m to 1.57 m in females. Two distinctive features of bison are the shoulder hump and their huge head. Fur color is brown, varying slightly from the front and back of the animal. The hair is longer in the front than in the rear. The distinction between hair length is most noticeable in males. The horns are black, curving upward and inward and ending in a sharp tip. At one time, bison were widespread from Alaska to northern Mexico (Meagher, 1986). Wholesale slaughter of bison herds caused the extermination of wild bison from the major part of their former range until recently. Bison are now found on private and protected lands in areas of the western United States and Canada.
Credits: Animal diversity