- 25 to 30 yearsLongevity in the wild is 25 to 30 years, but in captivity several polar bears have lived to more than 35 years old.www.britannica.com/animal/polar-bear
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Polar bear | Description, Habitat, & Facts | Britannica
4 天之前 · Adult polar bears have no natural predators, though walruses and wolves can kill them. Longevity in the wild is 25 to 30 years, but in captivity several polar bears have lived to more than 35 years old. Humans probably cause most polar bear deaths, by hunting and by …
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- Observe polar bear predation on walrus on Wrangel Island
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- Polar bears waiting for Hudson Bay to freeze
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- polar bear summary
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Adaptations & Characteristics - Polar Bears International
How do polar bears survive, and thrive, on the Arctic sea ice? Discover their secrets here.
Polar bear - Wikipedia
In 2015, the IUCN Red List categorized the polar bear as vulnerable because of a "decline in area of occupancy, extent of occurrence and/or quality of habitat". It estimated the total population to be between 22,000 and 31,000, and the current population trend is unknown. Threats to polar bear populations include climate change, pollution and energy development.
Wikipedia · CC-BY-SA 许可下的文字Polar Bears 101 | Nat Geo Wild - YouTube
2017年9月8日 · How do polar bears survive their Arctic habitat? Is climate change affecting their population? Learn how polar bears have adapted to life on top of the world...
Life Cycle | Polar Bears International
Polar bear families generally emerge from their dens in March or April when the cubs are strong enough to survive in outside Arctic conditions and make the trek to sea ice. Now, mother …
Polar Bear - National Geographic
How do polar bears survive their Arctic habitat? Is climate change affecting their population? Learn how polar bears have adapted to life on top of the world.
Polar Bear | Species | WWF - World Wildlife Fund
A polar bear might catch only one or two out of 10 seals it hunts, depending on the time of year and other variables. Their diet mainly consists of ringed and bearded seals because they need large amounts of fat to survive. Polar …
Habitat - Polar Bears International
Where do polar bears live? Polar bears are forever linked to the Arctic sea ice, where they hunt their seal prey. The bears are found in five range states: the U.S. (Alaska), Canada, Russia, Greenland, and Norway (Svalbard).
Polar Bear - National Wildlife Federation
Polar bears can only survive in areas where the oceans freeze, allowing them to hunt seals living under, on, or in the frozen polar ice cap. Exacerbating the problems of the loss of hunting areas, it is expected that the shrinking polar …
Polar bear - WWF Arctic
Polar bears help us gain an understanding of what is happening throughout the Arctic. All recent indicators show that sea ice in the Arctic is melting at an alarming rate, a problem that needs to be addressed immediately if polar …
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