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Original - The polar bear (Ursus maritimus) is a bear native to the Arctic. Polar bears are the world's largest land carnivores, with most adult males weighing 300–600 kg (660–1320 lb); the adult female (pictured) are about half the size of males. A semi-aquatic marine mammal, the polar bear has adapted for life on a combination of land ...
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 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.
Polar bears catch all their prey from the sea ice, so no sea ice – no polar bears. Due to global warming, the sea ice in the Arctic Sea is rapidly diminishing, and the latest forecasts predict that the polar bear may be almost extinct in the wild 40 years from now. [2]
Tybee Island is helping families start the new year off right with its annual Polar Plunge on Jan. 1, 2024. ... Polar Bear Plunges are a popular tradition around the world with huge events in ...
English: Three polar bears approach the starboard bow of the Los Angeles-class fast attack submarine USS Honolulu while surfaced 280 miles from the North Pole.Sighted by a lookout from the bridge (sail) of the submarine, the bears investigated the boat for almost 2 hours before leaving.
Projected change in polar bear habitat from 2001–2010 to 2041–2050. Arctic warming negatively affects the foraging and breeding ecology of native Arctic mammals, such as Arctic foxes or Arctic reindeer. [91] In July 2019, 200 Svalbard reindeer were found starved to death apparently due to low precipitation related to climate change. [92]
Polar bear in Manitoba, Canada. November 2004. Polar seas is a collective term for the Arctic Ocean (about 4-5 percent of Earth's oceans) and the southern part of the Southern Ocean (south of Antarctic Convergence, about 10 percent of Earth's oceans). In the coldest years, sea ice can cover around 13 percent of the Earth's total surface at its ...