Hunting |
- Ringed seals are their favorite food
- Sometimes they also hunt the bearded seals, walrus and beluga whales
- Once a seal is captured, a polar bear bites it several times on the head and neck before dragging it several meters from the water to feed
- The skin and fat are eaten first, followed by the meat.
Additional Information
- A polar bear's stomach can hold an estimated 15% to 20% of its body weight. A polar bear generally eats this much only when its energy demands are high. A bear can assimilate 84% of the protein and 97% of the fat it eats.
- Polar bears need an average of 2 kg (4.4 lb.) of fat per day to obtain enough energy to survive. A ringed seal weighing 55 kg (121 lb.) could provide up to eight days of energy for a polar bear.
- Hibernating polar bears do not eat.
Hibernation
switch to walking hibernation |
- Polar bears do not hibernate in the true sense of the word.
- True hibernators experience a marked drop in heart rate and a body temperature that plunges to nearly 0° C (32° F).
- Polar bears instead enter a state of 'walking hibernation' where their metabolism slows
- Only pregnant female polar bears hibernate
- She won't leave the den until her babies are ready to follow her while she hunts
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