Herbivorous, feeding on leaves, herbaceous and aquatic plants.
Average of 8 to 12 up to 20 years in the wild.
The female is sexually mature at approximately 1 ½ years old. Mating takes place between mid-September and October. 1 or 2 calves are born between late May and early June, after an 8 month gestation period and are weaned after 4-5 months.
Grey wolf, cougar and grizzly bear. Calves can also be the prey of black bear.