Scientific name: bison bison
The American Bison is a very large type of cow. They once travelled in massive herds over America, but they were killed almost to extinction by people in the 19th century. A bison has a shaggy, long, dark brown winter coat, and a lighter weight, lighter brown summer coat. Bison can reach up to 2 meters (6.6 ft) tall, 3 meters (10 ft) long, and weigh 400 kilograms (882 lb) to 1,000 kilograms (2,205 lb).