Female polar bear with her cub
Female polar bear with her cub on a frozen lake near Cape Churchill, Canada.
Mother bear and cubs
A polar bear mother and her cubs of the year rest on one of the few remaining piece of drift ice in the Barents Sea in late July, Northeastern Svalbard, Northern Europe.
Polar bear feeding
A large male polar bear returns to feed on a fin whale carcass. On land, where bears cannot hunt for seals, food is scarce and polar bears mainly depend on washed up marine mammals for food. Holmiabukta Bay, Northwestern Svalbard, Norway.
Polar bear
Polar bear walking on a frozen pond with blowing snow near Cape Churchill, Canada.
polar bear
Female polar bear with her cub on a frozen lake near Cape Churchill, Canada.
Patchy Polar Bear
This polar bear, captured and immobilized by USGS scientists, shows hair loss and oozing sores on the left side of its neck. The cause of the alopecia and lesions is still unknown.
Polar Bears on Arctic Ice
A baby polar bear follows its mother across Arctic ice.
Swimming Polar Bear
The rapid loss of sea ice is forcing polar bears to go for longer swims, according to research.
Polar bear with cub
A polar bear and her healthy cub, a sight that could be increasingly rare in Canada's Hudson Bay.
Polar Bears
Researchers following a group of adult polar bears wearing GPS collars found a 45 percent mortality rate among the cubs of those who swam 30 miles or more at a time, as compared with an 18 percent mortality rate among the cubs of other polar bears.
