Bob is the largest bison (Bison bison) at Noah’s Ark, weighing in at roughly 1800 lbs. He and his fellow herd members came to live at the sanctuary after their owner passed away and the children that the bison were willed to did not want them. Our bison are relatively mild mannered (the males are castrated to prevent breeding) and coexist peacefully with the other pasture animals whom they share an 80 acre pasture with. In the summer when they shed their thick winter coats, Bob and his friends prefer to spend their days lounging in the shallows of their pond to keep cool. Bison are native to western North America and in captivity, can live anywhere from 15 to 25 years of age.