Endangered species in North America : American bison
American bison is a companion of cows in North America. It is a very solid and powerful creature. It is the largest mammal on the North American continent and is very large with a physical condition of 2 m or more. It's a carnivore or a herbivore. Bison is said to be a symbol of the United States and has long been a symbol of the roots of the country as a frontier for the American people.