Do polar bears hibernate?

Answer 1

Female polar bears (sows) do lightly hibernate when they are pregnant. Only pregnant sows hibernate, because they need to save their energy while they wait to give birth. While the other polar bears may start to hunt out on the ice in October or November, sows head inland to a den to rest until they give birth in about January.

Something not often considered with polar bears is that they are on a very different cycle than other bears. While a black bear eats all spring, summer and fall, then hibernates in the lean winter months, polar bears have the opposite schedule. Polar bears hunt seals out on the ice, so they need cold temperatures - winter is feast time, and summer is the lean time of year to live off their fat.

Answer 2

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 do not enter a state of deep hibernation; instead they undergo "walking hibernation." Only pregnant female bears enter a den. They do so in the fall and give birth to their cubs in November or December. The bear family will remain in the den until March or April.

Answer 3

Like the other answers here the female will make a den when she has new born offspring to rear. They will also hole up when the weather is bad.
I work on the North Slope of Alaska and I have seen polar bears
just about any season. One can never be too careful when working alone and outside on those cold, dark three month nights.
Polar bear pics I have taken are at kl7ac.com.

Answer 4

The female [sows] hibernate lightly when they are pregnant. The other thing that
surprised me is that they have black tongues. Check Yahoo and type in--polar
bears hibernate and it will come up with just about every question you can think
of. I find polar bears beautiful and fascinating.

Answer 5

no they don't hibernate or can just go to polarbearinternational.com and find out more about polar bears

Answer 6

I saw nature video once where a moma and two cubs came out of a den after a long sleep. I believe the cubs were born while she was hibernating.

Answer 7

polar bears do hibernate but not in the true sense, they spend their time in a snow hole while the cubs are young and will only leave the snow hole when the cubs can walk

Answer 8

i 'm not sure. if the grizzly bear hibernates in winter than polar bears should also hibernate but it's always winter there and they cannot sleep throughout their lifetime if it's chilly.

Answer 9

No but pregnant females spend the middle of winter in a den where they give birth and which they leave in early spring.

Answer 10

i think all bears hibernate