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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 ...
Description Polar bears near north pole.jpg. English: Three polar bears approach the starboard bow of the Los Angeles-class fast attack submarine USS Honolulu (SSN 718) 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.
A grizzly-polar-bear-hybrid (also named grolar bear, pizzly bear, zebra bear, [1][2] grizzlar, or nanulak) is a rare ursid hybrid that has occurred both in captivity and in the wild. In 2006, the occurrence of this hybrid in nature was confirmed by testing the DNA of a unique-looking bear who had been shot near Sachs Harbour, Northwest ...
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.
The giant predators were a deadly danger to early European explorers of the Arctic. Chris Hellier/Corbis Historical via Getty ImagesPolar bears have long held visual artists in their thrall. Over ...
Gus (bear) Gus (1985–August 27, 2013) was a 700-pound (320 kg) [1][2] polar bear and icon of the Central Park Zoo in New York City. [3] His exhibit was visited by over 20 million people during his lifetime. [3][4] He came to public notice in the 1990s, when he began swimming obsessively in his pool for up to 12 hours a day.
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