Omnivorous, feeding mainly on plants, berries, larvae, insects, small mammals, fish, animal carcasses, waste, and sometimes birds.
10 to 15 years in the wild and around 25 years in captivity.
From the age of 3 years old, the female mates every other year between June and mid-July. The embryo develops after a delayed implantation during the 6 to 8 final weeks of a 7 to 7 ½ month gestation period. 1 to 3 cubs are born in the lair between mid-January and early February. The cubs are weaned after 5 months.
Occasionally, grizzly bear. Cubs can also be the prey of grey wolf, cougar and black bear.