“Still hunting frequently develops into an ‘aquatic stalk’ with the polar bear using its hind paws to slide into the water to pursue its prey, and the lower the ice adhesion, the less noise ...

Patience: A polar bear still-hunting on the sea ice of Hudson Bay, Manitoba, Canada. (Courtesy: Jenny E Ross) In the teeth of the Arctic winter, polar-bear fur always remains free of ice – but how?

"A loss of sea ice means bears spend less time hunting seals and more time fasting on land," says Louise Archer, a U of T Scarborough postdoc and lead author of the study. "This negatively affects ...

International Polar Bear Day highlights conservation efforts to protect polar bears and their fragile Arctic habitat.

The polar bears pass through Churchill, Manitoba, hoping to catch a ride 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 ...

University of Wyoming researchers John Whiteman and Merav Ben-David inspect a temperature logger implantation site on a polar bear on off-shore sea ice north of Prudhoe Bay, Alaska, in April 2009.

University of Wyoming researchers Hank Harlow, left, and John Whiteman collect a breath sample from a polar bear on pack ice in October 2009. This material relates to a paper that appeared in the ...

Polar bears are the planet’s biggest land-based carnivores – although they actually spend most of their lives around water and ice (their Latin name means ‘sea bear’). So they’re at particular risk ...

Arctic sea-ice is currently at its smallest recorded extent for the time of year, while Antarctic sea-ice is close to a new low in satellite records going back to the late 1970s.

Scientists captured polar bear cubs emerging earlier from their dens, linking it to climate change and environmental shifts.