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 ...

This is an extremely rare occurrence, researchers said — only 13 instances of the act have occurred in a group of 4,600 polar bears recorded over the last 45 years Researcher Evan Richardson said, "It ...

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 ...

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 wild female polar bear in Canada’s Churchill, Manitoba, had been observed and captured on camera with an adopted cub that is not her own. Adoption among polar bears isn’t unheard of, but it is ...

Researchers were surprised when they spotted an additional cub with this mother polar bear. Dave Sandford / Discover Churchill When female polar bear X33991 first emerged from her maternal den in ...

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 ...