![]() Sun bears don’t hibernate either, and that’s because they don’t need to, as they can find food throughout the year. Sloth bears don’t hibernate or enter any kind of winter sleep, but they can sleep for up to 14 hours a day. ![]() We know that black bears and grizzly bears hibernate to get through the cold and scarce winter months, but what about bears in other parts of the world? This process is similar to the “hibernation” performed by other bears as the animal relies on its fat reserves to sustain itself. Not all polar bears hibernate, but a pregnant polar bear will “den” to keep her cubs warm. Grizzly bears hibernate for between 5 and 7 months and Alaskan brown bears can hibernate for up to 8 months. They go without eating, drinking, or defecating during this time. How Long Do Bears Hibernate?ĭifferent species of bear hibernate for varying lengths of time.īlack bears hibernate for over 7 months. Hibernation is still an accepted term, though, and it’s commonly used in reference to bears. That’s why many experts describe what bears do as “winter sleep” and not hibernation. But again, bears don’t do this-they wake abruptly and are ready to go just as quickly as if they were sleeping. Animals also tend to wake very slowly from hibernation, as you would expect from an animal that has basically placed itself on a long-term standby. Typically, an animal’s body temperature will drop during hibernation, but this isn’t true for bears. Ironically though, it’s debated whether or not bears actually hibernate. When you think of hibernating animals, bears are probably the first ones that spring to mind.
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