"We saw one, then we saw another one, then 20 of them. And they all were inside this building." Abandoned since 1992, the ...

(CNN)-- Summer is over in the northern hemisphere ... and as the ice melts and global warming transforms the Arctic, polar bears are starving, drowning, even resorting to cannibalism because ...

As the planet heats up, the summer sea ice and all the superbly adapted life it supports—the bears, the seals, the walruses, the whales, the Arctic cod, the crustaceans, the ice algae—may well ...

At the edge of the Arctic in northern Canada ... out of the tiny town on Hudson Bay's sea ice. After a summer of fasting on land, the bears need to get back to their frozen home to hunt seals ...

Their thick fur and specialized hooves help them survive in the Arctic's challenging environment. Polar Bear: The undisputed king of the Arctic, the polar bear is perfectly adapted for life on sea ...

So they’re at particular risk from global warming, which is melting the Arctic sea ice they depend on. Polar bears generally live and hunt alone, though they can be quite social too. They mainly eat ...

Without summer sea ice for resting ... The U.S. Fish and Wildlife Service will be accepting public comment on the proposed rule for 30 days. Arctic polar bear with cubs. (Credit: USFWS) Images are ...