A polar bear mother was seen with one cub in the spring — but by fall she had adopted a second, according to Canadian researchers.

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 ...

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. Researchers had tagged the five-year-old mother, also known ...

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 ...

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 ...

Only 13 instances of adoption have been recorded in western Hudson Bay polar bear population since studies began more than 45 years ago.

It's a beautiful story out of the arctic to end your year on a good note. A polar bear mom took on a second (presumably orphaned) cub in only the 13th recorded case of adoption for this species in the ...