Hibernation
Some animals sleep through the winter -- those animals are called hibernators. The long sleep through the winter is called hibernation.
Winter sleep is called hibernation. Hibernation is when animals (such as bears) sleep for multiple months in order to conserve energy during the winter.
bears ,some squirrels, weasels
hibernation
When bears go to sleep in the winter, it is called Hibernation. Squirrels, birds, and other animals who dislike the cold do the same thing.
some animals that can survive the winter and not the summer go for long summer sleep.
eh? To hibernate is to sleep through the cold winter months. Cold blooded animals are called Ectotherms/Ectothermic and warm blooded animals are called Endotherms/Endothermic.
This is called hibernation.
Some animals such as bears go into a state of dormancy called hibernation during the winter. They reduce their metabolic rate and conserve energy by sleeping for extended periods. Hibernation helps these animals survive the cold and scarce food resources during the winter months.
They Mostly Sleep
A long deep sleep done by animals during winter
bears sleep through winter to conserve food, especially during winter when food is short, tapping energy reserves, body fat, at a slow rate. you can find out more at here: http://en.wikipedia.org/wiki/Hibernation