they start to find food and start looking for a cave.
It doesn't. Grizzly bears hibernate through winter
sleep
they hibernate for the winter.
in winter during hibernation in their dens?
yes they are eather in the winter or in the summer.
They have to hibernate when they get ready for winter.
January to December
Grizzly bears are the biggest predators in their environment. Even wolves and mountain lions can't kill grizzly bears because the Bears are well armed with their size, strength, claws, and teeth. However, grizzly bears can be a threat to each other; in particular, males often try to kill cubs so that their mothers will be ready to breed sooner.
Female grizzly bears care for their young when born. Grizzly bears hibernate during winter. They go to river rapids to catch salmon.
Basically little or nothing, their Metabolism slows down to a point where they seem semi-comatose and spend most of the winter asleep [hibernation] in a sheltered spot.
Bears in general, need to put on enough body fat during Autumn, so as to survive the winter hibernation.
grizzly bears are in lots of danger