It isn’t hibernation in the strict sense of the word. Most bears, when hibernating have a drop in heart rate, metabolism, and body temperature. Polar bears only experience low metabolism (waking hibernation), except for pregnant mothers, who enter a den, give birth sometime during winter, and wake after three months.
Polar bears do not hibernate like brown or black bears; they can remain active thoughout the year. If food is scarce, they have the ability to reduce their metabolic rate and enter a state called “walking hibernation”. Bears in walking hibernation appear normal, but they are using less energy.
Amazing, how sweet would it be to do that as a human. I wonder why polar bears do not hibernate like other species of bear.
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