Against the backdrop of Arctic warming, polar bears in Norway’s far north are gaining fat and feeding on new prey—a testament ...

For years, images of thin polar bears stranded on shrinking ice floes shaped how many people understood climate change in the Arctic. Those photos seemed to confirm dire predictions, that as sea ice ...

Quick Take Two U.S. zoos recently engaged in a polar bear swap; Kali moved to Detroit, while Nuka transferred to Toledo.

Remarkably, the number of days with no ice in the region increased by roughly 100 during that period. And yet, as the authors found, the body condition of both male and female polar bears—i.e., how ...

From Hudson Bay to the Chukchi Sea, meet 19 polar bear groups and the people racing to protect them as ice disappears.

Researchers have found that certain changes in polar bear DNA are linked to bears living in warmer places — with implications for how the animals adapt to a warming planet. A recent study published in ...

Kali, now 13, was rescued as a cub in 2013 after residents of the Native Village of Point Lay, Alaska, discovered he’d been orphaned.

A new romance is unfolding in Como Park Zoo & Conservatory’s polar bear habitat — and zookeepers say it could help shape the future of polar bears in North ...