Polar bears survive in the winter by using their 2 thick layers of fur, one layer as winter jacket and another as a sweater. Polar bears get food (seals) when they come up to breath. Therefore, polar bears are warm and toasty during the wintertime.
How do polar bears prepare for hibernate?
That’s some powerful digging! In order to hibernate, polar bears not only need to prepare a den, but also their bodies. Polar bears have the ability to increase or decrease their metabolic rate (how much energy they use), so they can survive through their hibernation without running out of energy.
How do polar bears survive during winter?
Polar bears live in one of the planet’s coldest environments and depend on a thick coat of insulated fur, which covers a warming layer of fat. Fur even grows on the bottom of their paws, which protects against cold surfaces and provides a good grip on ice.
What do polar bears do when they hibernate?
On cold days polar bears curl up and often cover their muzzle area. During the winter, some polar bears excavate temporary dens or find natural shelters to stay warm. They may use these shelters for several months at a time.
How do polar bears get food in the winter?
Foraging and Eating
- Still hunting is the most common method of hunting year-round.
- The polar bear remains motionless beside a breathing hole or lead edge waiting for a seal to surface. …
- Still hunting usually takes less than one hour, but polar bears will wait much longer.
Do polar bears eat humans?
Bears. Polar bears, particularly young and undernourished ones will hunt people for food. … Truly man-eating bear attacks are uncommon, but are known to occur when the animals are diseased or natural prey is scarce, often leading them to attack and eat anything they are able to kill.
Do bears poop while they’re hibernating?
Grizzly bears and black bears generally do not eat, drink, defecate, or urinate during hibernation. … Waste products are produced, however, instead of disposing of their metabolic waste, bears recycle it.
Do polar bears eat penguins?
Polar bears do not eat penguins, since penguins live in the southern hemisphere and polar bears live in the northern hemisphere.
Can polar bears survive in warm climates?
Summary: Polar bears are not likely to survive in a warmer world, biologists report. As polar bears lose habitat due to global warming, these biologists say, they will be forced southward in search of alternative sources of food, where they will increasingly come into competition with grizzly bears.
Do bears give birth while hibernating?
Cubs are usually born within the first two months of hibernation. Cubs and their mothers stay in their dens for the rest of the winter while the mother bear rests and the cubs nurse and grow. Females and their cubs usually emerge from their winter dens in late March or early April.
What is the average lifespan of a polar bear?
LIFE CYCLE: Polar bears can live up to 25 or 30 years in the wild.