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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.
Polar bear. 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, as ...
Due to climate change in the Arctic, this polar region is expected to become "profoundly different" by 2050. [1]: 2321 The speed of change is "among the highest in the world", [1]: 2321 with the rate of warming being 3-4 times faster than the global average. [2][3][4][5] This warming has already resulted in the profound Arctic sea ice decline ...
Fifteen years after polar bears were listed as threatened, a new study says researchers have overcome a roadblock in the Endangered Species Act that prevented the federal government from ...
An isolated group of polar bears living in southeast Greenland has surprised scientists with its ability to survive in a habitat with relatively little sea ice. Polar bears face existential threat ...
Sebnem Coskun/Anadolu via Getty Images. A pair of polar bears attacked and killed a worker at a remote government radar site in the Canadian Arctic, the facility's operator said, marking at least ...
The ringed seal species is the smallest true seal, and gets its name from a distinctive patterning of light spots on dark grey colored fur. The ringed seal is commonly preyed upon by Polar bears, Arctic foxes, and Killer whales. Population estimates and survival rates are unknown, but average life expectancy is 15-28 years.
The Agreement on the Conservation of Polar Bears is a multilateral treaty signed in Oslo, November 15, 1973, by the five nations with the largest polar bear populations: Canada, Denmark (Greenland), Norway (Svalbard), the United States, and the Soviet Union. [1] This treaty was brought about due to increased hunting of polar bears during the ...
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