American bison
Bison bison
The American bison , also commonly known as the American buffalo, is a North American species of bison that once roamed the grasslands of North America in massive herds. Their range once roughly comprised a triangle between the Great Bear Lake in Canada's far northwest, south to the Mexican states of Durango and Nuevo León, and east along the western boundary of the Appalachian Mountains. Because of commercial hunting and slaughter in the 19th century, the bison nearly went extinct and is today restricted to a few national parks and other reserves.
Two subspecies or ecotypes have been described: the plains bison , smaller in size and with a more rounded hump, and the wood bison – the larger of the two and having a taller, square hump. Furthermore, it has been suggested that the plains bison consists of a northern and a southern subspecies, bringing the total to three. However, this is generally not supported. The wood bison is one of the largest species of bovid in the world, surpassed by only the Italian Chianina, the Asian gaur and wild Asian water buffalo. It is the largest extant land animal in North America.
Two subspecies or ecotypes have been described: the plains bison , smaller in size and with a more rounded hump, and the wood bison – the larger of the two and having a taller, square hump. Furthermore, it has been suggested that the plains bison consists of a northern and a southern subspecies, bringing the total to three. However, this is generally not supported. The wood bison is one of the largest species of bovid in the world, surpassed by only the Italian Chianina, the Asian gaur and wild Asian water buffalo. It is the largest extant land animal in North America.
