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After four months of darkness, two Polar Bear cubs emerge from their arctic den and gaze out into their new world for the very first time.
- 3 min
- 4.8M
- BBC Earth
Learn about polar bear mating and denning habits, along with facts about mothers, cubs, growing up, and average life span.
4 de may. de 2012 · When they're not playing, polar bear cubs learn under the watchful eye of their mother. Subscribe: http://bit.ly/NatGeoSubscribe#NationalGeographic #PolarBe...
- 3 min
- 10.1M
- National Geographic
Polar bear milk is about 31% fat when cubs are born, providing enough calories to help cubs grow rapidly. The mother’s milk changes fat content and composition as cubs get older and nurse less, becoming closer to 18% fat by the time the cubs are a year old.
- Arctic Adaptations
- Hunting
- Breeding and Behavior
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. The bear's stark white coat provides camouflage in surrounding snow and ice. But under their ...
These powerful predators typically prey on seals. In search of this quarry they frequent areas of shifting, cracking ice where seals may surface to breathe air. They also stalk ice edges and breathing holes. If the opportunity presents itself, polar bears will also consume carcasses, such as those of dead whales. These Arctic giants are the masters...
Females den by digging into deep snow drifts, which provide protection and insulation from the Arctic elements. They give birth in winter, usually to twins. Young cubs live with their mothers for some 28 months to learn the survival skills of the far north. Females aggressively protect their young, but receive no help from their solitary male mates...
- 3 min
- Joel Sartore
Polar bear (Ursus maritimus) with cubs in the Wapusk National Park, Churchill, Manitoba, Canada. Winter: Raising cubs. After two months or so in the den – usually between December and January – a mother welcomes cubs into her den. She may have up to three, but 1-2 are more common.
3 de feb. de 2020 · Competition for food is fierce in the Arctic circle, but this courageous polar bear risks her life to feed her cubs.
- 4 min
- 12M
- BBC Earth
