The Bison bison athabascae, commonly known as the wood bison, is a subspecies of the American bison. It is the largest terrestrial mammal in North America, characterized by a large hump over its shoulders, shaggy dark brown fur, and a massive head. Wood bison inhabit boreal forests and grasslands, primarily in Canada. They are social animals, typically seen in herds, and are known for their role in maintaining grassland ecosystems by grazing and dispersing seeds.

Bison bison athabascae, commonly known as the wood bison, is native to North America, specifically the boreal forests and northern grasslands of Canada. Their primary geographical distribution includes regions in the Canadian provinces and territories of Alberta, British Columbia, Manitoba, Yukon, and the Northwest Territories.

Wood bison inhabit boreal forests and adjacent meadows, preferring areas with a mix of forested and open spaces. They are adapted to cold, subarctic climates and can endure harsh winters. Summers in these regions are short and mild, with long days, while winters are long and cold with significant snowfall.

The wood bison play a crucial ecological role as grazers, maintaining the health of their ecosystem by helping to control plant growth and maintain open grasslands within forested areas. They feed on grasses, sedges, and other vegetation, contributing to the nutrient cycle and supporting biodiversity in their habitat.