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Polar bears can live up to 30 years. [10] The bear's long lifespan and ability to consistently produce young offsets cub deaths in a population. Some cubs die in the dens or the womb if the female is not in good condition. Nevertheless, the female has a chance to produce a surviving litter the next spring if she can eat better in the coming year.
Polar bear feeding on a seal on an ice floe north of Svalbard, Norway. It is the most carnivorous species. The sloth bear is not as specialized as polar bears and the panda, has lost several front teeth usually seen in bears, and developed a long, suctioning tongue to feed on the ants, termites, and other burrowing insects
Debby (1966 – November 17, 2008) was a female polar bear, considered by scholars as the world's oldest.She lived in the Assiniboine Park Zoo in Winnipeg.In August 2008, the Guinness World Records certified her as not only the oldest polar bear, but one of the three oldest individuals ever recorded of all eight bear species.
Polar bear attacks are rare, but they are a risk for people who live and work in isolated Arctic environments. ... The polar bear population here faces long-term decline.
Polar bear fur is not actually white, but rather clear and hollow, the better to insulate them in icy waters and help them stay afloat. When exposed to the sun, these tubular hairs yellow slightly.
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The key danger for polar bears posed by the effects of climate change is malnutrition or starvation due to habitat loss.Polar bears hunt seals from a platform of sea ice. Rising temperatures cause the sea ice to melt earlier in the year, driving the bears to shore before they have built sufficient fat reserves to survive the period of scarce food in the late summer and early fall.
This is an accepted version of this page This is the latest accepted revision, reviewed on 23 December 2024. Largest subspecies of brown bears/grizzly bears "Alaskan brown bear" redirects here. Not to be confused with Alaska Peninsula brown bear. This article may be in need of reorganization to comply with Wikipedia's layout guidelines. Please help by editing the article to make improvements ...