As with brown bears, black bears spend the winter months in a state of hibernation. Their body temperatures drop, their metabolic rate is reduced, and they sleep for long periods. Bears enter this dormancy period in the fall, after most food items become hard to find. They emerge in the spring when food is again available.
the more southern ranges, bears will emerge from their
dens during winter. In the northern part of their range,
bears may be dormant for as long as seven to eight months.
Females with cubs usually emerge later than lone bears.
Dens may be found from sea level to alpine areas. They may
be located in rock cavities, hollow trees, self-made
excavations, even on the ground.