When female polar bear X33991 first emerged from her maternal den in northeastern Manitoba this spring, she had one young cub toddling around by her side. Months later, researchers spotted X33991 ...

Researchers in northern Canada have observed a rare case of polar bear adoption, capturing video footage of a wild female bear caring for a cub that was not her own. "Cub adoption is relatively rare ...

When scientists in Canada came across a female polar bear with two cubs in the fall, they made an unusual discovery: One of the young was not her own offspring but instead a rare documented example of ...

A mother polar bear has made the decision to adopt - a move that scientists say is extremely rare - and the new family was caught on video.

Bear X33991 leading her two cubs along the ice. Dave Sandford / Discover Churchill (Wildlife Photographer, Guide, and Polar Bears International Photo Ambassador) Get the Popular Science daily ...

A photographer in Manitoba captured a rare sight on camera while tracking polar bears in November: a mother bear walking with a cub that was not biologically hers. Dave Sandford spotted this unique ...

The 5-week-old cub began to open her eyes Friday. — -- A sleeping polar bear cub at an Ohio zoo was caught apparently dreaming and the zoo got the adorable slumber on video. In the video, the cub ...

Scientists have captured rare footage of female polar bears and their newborn cubs emerging from maternal dens in the Arctic. Using remote cameras and satellite collars, researchers were able to track ...

BERLIN -- Germany's oldest zoo, which is home to the world's largest variety of species, welcomed an adorable polar bear cub. Polar bear mother Tonja gave birth to her cub on Dec. 1. The cub has ...

Polar bears are struggling to survive as sea ice dwindles. Scientists have now quantified how much climate change has drastically reduced the number of polar bears living in Canada's Hudson Bay, the ...

Dec. 18 (UPI) --A team of Canadian researchers have documented a rare case of a female polar bear adopting an unrelated cub who was apparently orphaned. The nonprofit group Polar Bears International ...