Denning begins with pregnant polar bears sealing themselves ... who recently completed a study linking a decline in polar bear populations to shrinking sea ice caused by climate change.

Polar bear mums make their dens deep beneath the ... cubs emerge has proven to be extremely difficult. Around November, pregnant polar bears will dig out a deep cave in the snow for their ...

Pregnant female polar bears usually enter a ... Despite this clear motivation to get back to hunting seals on the sea ice, polar bear families will often hang out at the den for days or weeks ...

Denning begins with pregnant polar bears sealing themselves inside dens dug out under the snow. Polar bear cubs are born about as helpless as human babies, and the den protects them from the frigid ...

The Detroit Zoo welcomed Haley, a 22-year-old polar bear, to its Arctic Ring of Life habitat. She joins two other polar bears ...

“Haley is such a special and inquisitive bear,” said Mike Murray, VP of life sciences for the Detroit Zoological Society. “We ...

It’s a big world out there, especially for polar bear cubs emerging from their dens. An international team of researchers observed these special first steps thanks to nearly a decade of camera ...