American bison are the largest land mammals in North America. Massive herds once roamed far and wide across the grasslands and savannas of north America, from Alaska all the way down to Mexico. Nowadays, herds are largely restricted to reserves and parks. Despite the bison's poor eyesight, danger is still detected well in advance, because they have excellent senses of hearing and smell. However, the formidable size and defences of the adults also keep them very safe. Bison calves are capable of walking and even running hours after being born.
Did you know?
American bison are the largest land mammals in North America.
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Life and death
An epic fight to the death for both hunter and hunted.
An epic fight to the death for both hunter and hunted.
Wolves get lucky
A young bison is dealt a fatal blow.
A young bison is dealt a fatal blow.
Prairie farmers
Prairie dogs tend the plains around their towns and the bison share the bounty.
Prairie dogs tend the plains around their towns and the bison share the bounty.
Battling bison
Testosterone-fuelled fighting in the American Badlands.
Testosterone-fuelled fighting in the American Badlands.
Bison weather proofing
Ice age survivors slow their metabolism down to conserve energy.
Ice age survivors slow their metabolism down to conserve energy.
The American bison can be found in a number of locations including: North America. Find out more about these places and what else lives there.
The following habitats are found across the American bison distribution range. Find out more about these environments, what it takes to live there and what else inhabits them.
Temperate grasslandDiscover what these behaviours are and how different plants and animals use them.
Additional data source: Animal Diversity Web
Near Threatened
Population trend: Stable
Year assessed: 2008
Classified by: IUCN 3.1
The American bison (Bison 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, became nearly extinct by a combination of commercial hunting and slaughter in the 19th century and introduction of bovine diseases from domestic cattle, and has made a recent resurgence largely restricted to a few national parks and reserves. Their historical range 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 to the Atlantic Seaboard of the United States (nearly to the Atlantic tidewater in some areas) from New York to Georgia and per some sources down to Florida.
Two subspecies or ecotypes have been described: the plains bison (Bison bison bison), smaller in size and with a more rounded hump, and the wood bison (Bison bison athabascae)—the larger of the two and having a taller, square hump. Furthermore, it has been suggested that the plains bison consists of a northern (Bison bison montanae) and a southern subspecies, bringing the total to three. However, this is generally not supported. The wood bison is one of the largest wild species of bovid in the world, surpassed by only the Asian gaur and wild Asian water buffalo. It is the largest extant land animal in North America.
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