Females have two to four babies. Bison eat grass. Once there were millions roaming the North America Prairie. The shoulders are covered with thick, shaggy, brownish black fur. Males and females have short horns.
Calves remain with their mother until they are three years old.
Ostriches are birds, but they can not fly. They live in Africa. They are the fastest animals on two legs. Ostriches usually eat plants, but sometimes they eat small reptiles. There are three types of grasslands.