So far, the animal has been immune to cancer. Some say that the Plains Indian, whose main diet was Bison, had no known cancer or heart diseases. Though slow and docile appearing, bison can out run and outmaneuver most horses. They are very agile, being able to pivot on their front feet as well as their hind feet. As mentioned above, they appear docile, however, they do not hesitate to react if threatened.
Calves are red in color when born.
They begin to lose this coloring in about four months. The gestation period is nine months and calves weigh in at about thirty-five pounds at birth. Newborns forage within twenty four hours and can swim within two hours of birth. They mature in about two years. Cows who birth yearly usually birth until thirty or more years old.