A slumbering Arctic fox in winter will wrap its long, bushy tail around its body for added warmth. Its feet are covered in dense fur to insulate against the cold and provide traction on the ice.

"America's Newsroom" co-anchor Bill Hemmer's once-in-a-lifetime adventure to the Arctic Circle led him on an educational ...

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 ...

Arctic sea ice had its weakest winter buildup since record-keeping began 47 years ago, a symptom of climate change that will have repercussions globally, scientists said Thursday. The Arctic ...