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The polar bear (Ursus maritimus) is a large bear native to the Arctic and nearby areas. It is closely related to the brown bear, and the two species can interbreed. The polar bear is the largest extant species of bear and land carnivore, with adult males weighing 300–800 kg (660–1,760 lb). The species is sexually dimorphic, … 展开
The polar bear was given its common name by Thomas Pennant in A Synopsis of Quadrupeds (1771). It was known as the "white bear" in Europe … 展开
The polar bear is the largest living species of bear and land carnivore, though some brown bear subspecies like the Kodiak bear can … 展开
Polar bears inhabit the Arctic and adjacent areas. Their range includes Greenland, Canada, Alaska, Russia and the Svalbard Archipelago of … 展开
Polar bears may travel areas as small as 3,500 km (1,400 sq mi) to as large as 38,000 km (15,000 sq mi) in a year, while drifting ice allows them to … 展开
Polar bears have coexisted and interacted with circumpolar peoples for millennia. "White bears" are mentioned as commercial items in the … 展开
Carl Linnaeus classified the polar bear as a type of brown bear (Ursus arctos), labelling it as Ursus maritimus albus-major, articus in the 1758 edition of his work Systema Naturae. Constantine John Phipps formally described the polar bear as a distinct species, … 展开
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 … 展开
CC-BY-SA 许可证中的维基百科文本 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...
Polar bear | Description, Habitat, & Facts | Britannica
4 天之前 · Polar bear, great white northern bear found throughout the Arctic region. The polar bear is the largest and most powerful carnivore on land, a title it shares with a subspecies of …
- 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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Polar Bear - National Geographic
- 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 ...
Polar Bear | Species | WWF - World Wildlife Fund
The largest bear in the world and the Arctic's top predator, polar bears are a powerful symbol of the strength and endurance of the Arctic. The polar bear's Latin name, Ursus maritimus, …
Polar Bear photos, facts, and map - National …
Polar bears roam the Arctic ice sheets and swim in that region's coastal waters. They are very strong swimmers, and their large front paws, which they use to paddle, are slightly webbed. Some...
Polar bear - WWF Arctic
Majestic creature of the far north, the polar bear is the world’s largest terrestrial carnivore. Its Latin name, Ursus maritimus, means ‘sea bear’: an apt name for this amazing animal, which spends much of its life in, around, or on the water …
10 facts about polar bears! | National Geographic Kids
Ten polar bear facts. 1) Polar bears are found in the frozen wilds of the Arctic, in Canada, Alaska (US), Greenland, Russia and Norway. 2) These are seriously big bears, gang. Adult polar bears can measure over 2.5m long and weigh …
Top 10 facts about polar bears - WWF
Learn about the marine mammals that are the largest land carnivores in the world, their black skin, their swimming skills, their hunting strategies and more. Find out how WWF is working to protect polar bears from climate change and …
Polar Bear Facts - Fact Animal
Learn about the polar bear, the largest land carnivore and a marine mammal that lives in the Arctic region. Find out about its habitat, diet, adaptations, conservation status, interesting facts and more.
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