During the winter, food is too scarce for brown bears and black bears to survive. Hibernation is a state of extreme sleep where metabolism slows down. This reduces energy use and allows the animal to survive winter on its fat reserves alone.
No
For black bears and grizzly bears, from spring to fall, with heightened periods when bears come out of hibernation and when they're fattening up for hibernation. For polar bears, it can be any time of the year.
it is hibernation
In the winter bears go through hibernation. The bear was hungry and ill-tempered after it's long hibernation.
They store food as fat. This occurs just before hibernation.
No, the whole metabolism shuts down to almost nothing.
in winter during hibernation in their dens?
both groundhogs and bears hibernate.
These bears will live in temperatures above 100 degrees F and below -10 degrees F. Usually at the latter temperature bears are in hibernation, but still, when bears are too hungry to be in hibernation, they'll be out looking for food.
feb. march.
The dead ones! :)
hibernation