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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).
[a] The polar bear is considered to be the largest extant species, [42] with adult males weighing 350–700 kg (770–1,540 lb) and measuring 2.4–3 m (7 ft 10 in – 9 ft 10 in) in total length. [43] The smallest species is the sun bear, which ranges 25–65 kg (55–143 lb) in weight and 100–140 cm (39–55 in) in length. [44]
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.
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The 1958 Statehood Act set up a program for polar bear management, and further conservation efforts, including the 1972 Marine Mammal Protection Act, have limited polar bear hunts. [10] Polar bear populations may be threatened by oil development and global warming. [10] [11] Only about 4700 polar bears are known to inhabit Alaska. [12]
USA, Wales, Alaska — Myomick was attacked and killed by a polar bear in the small village of Wales, Alaska. The attack happened at 2:30 pm. The polar bear had chased several residents of the community, before it killed the woman and her 1-year-old son. The bear was shot and killed by a local resident as it attacked the pair. [46] [47]
And the Highland Wildlife Park has had an elderly polar bear before. Mercedes died at the park in April 2011 at the age of 30. Show comments. Advertisement. Advertisement. In Other News.
Moreover, the sub-population of Ursus maritimus polar bears found here is a genetically distinct set of polar bears associated with the Barents Sea region. [21] Ringed seal and bearded seal, prey of the polar bear, live in the waters near Bjørnøya, but the formerly common walruses have nowadays become guests.
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