Researchers analyzed blood samples from polar bears located in northeastern and southeastern Greenland. The results showed that “some genes linked to heat-stress, aging and metabolism” were “behaving differently” in the southern bears compared to the northern ones, Alice Godden, a co-author of the study, said in an article for The Conversation.

As the Arctic warms and sea ice disappears, polar bears are being pushed into conditions they have never faced before. Their hunting grounds are shrinking, food is becoming harder to find, and their numbers are falling rapidly across the Arctic.

Climate change in Earth's polar regions is emerging as an underrecognized driver of global health risks, with consequences reaching far beyond the Arctic and Antarctic, researchers argue. Subscribe to our newsletter for the latest sci-tech news updates.

It's no secret that polar bears in the Arctic are suffering as a result of changing conditions due to climate change, but a new study has discovered they are hurting in more ways than previously believed. For the first observed time, ice buildup and ...

With climate change steadily dismantling the icy habitat essential to their existence, new research suggests polar bears are rapidly rewiring their own genetics in a bid to survive. The species is being forced to adapt to the harsher reality of a warming ...

FILE - This March 25, 2009, file photo provided by the U.S. Geological Survey shows a polar bear in the Beaufort Sea region of Alaska. On Dec. 28, 1973, President Richard Nixon signed the Endangered Species Act. The powerful law charged the federal ...

Ever since TIME Magazine’s Special Report on climate change in 2006 reinforced the emblematic nature of the polar bear with a striking cover image of a lone animal on sea ice, the world’s been fascinated by the white bear of the North. But, most ...

Polar bears in Canada's Western Hudson Bay — on the southern edge of the Arctic — are continuing to die in high numbers, a new government survey of the land carnivore has found. Females and bear cubs are having an especially hard time. Researchers ...

The Arctic Ocean current is at its warmest in the last 125,000 years, and temperatures continue to rise. Due to these warming temperatures more than two-thirds of polar bears are expected to be extinct by 2050 with total extinction predicted by the end of ...