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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).
It is here that the female polar bear will go into a hibernation type state. Female polar bears dig their own maternity den. It is important the the female polar bears have fed enough in the spring and summer before fall, because of the scarcity of food on land when winter comes. While in the maternity den, the mother polar bear will not eat ...
Here's what they do to survive. Plus: how climate change puts newborn cubs in danger. For many bears, winter means hibernate or die. Here's what they do to survive. Plus: how climate change puts ...
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.
Bears normally stock up on food then hibernate in their dens during the coldest winter months. Bear hibernation is “strongly tied” to weather patterns and food availability, according to a ...
There are an estimated 17,000 polar bears across Canada; of the world’s total estimated population of 26,000. A polar bear and a cub search for scraps in a large pile of bowhead whale bones (AP)
Polar bears differ from black bears, grizzlies, and other bear species where both sexes hibernate in that only females use hibernacula. Like other female bears, polar bears use hibernacula as maternity dens. Also like other species, they tend to dig dens into the earth, although their Arctic hibernacula are usually covered with snow by the time ...
A man has been seriously injured after trying to prevent a polar bear from attacking his wife in northern Ontario, Canada. On Tuesday, Dec. 3, before 5 a.m. local time, an adult male and an adult ...