A fully grown male bison can weigh approximately 2,000 pounds, while a female bison can grow up to 1,100 pounds. When a baby bison calf is born, it can weigh between 40 and 50 pounds and can usually walk and run within a couple of hours.
Many people in North America incorrectly refer to the bison as a buffalo; however, what many people believe to be buffalo is actually the American bison. This animal is extremely fast and can run at speeds of up to 40 miles per hour. It eats a wide variety of pasture grains, including native grasses and prairie hay.