Herbivorous, feeding on herbaceous plants, sedges, rushes and lichens.
Up to 20 years in the wild and 24 in captivity.
Threatened. Wood bison are of special concern
The female is sexually mature at 2 years old and the male at 2 or 3 years old. Mating takes place between early July and mid-September. A single calf is born between May and early June after an approximate 9 month gestation period and is weaned after 7 months.
Calves can be the prey of grizzly bear, black bear, grey wolf and cougar.