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 ...

Add Yahoo as a preferred source to see more of our stories on Google. (NewsNation) — Researchers who were tracking wild polar bears in northern Canada witnessed a rare moment: a mother polar bear ...

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 ...

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 ...

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 ...

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 ...

"It's just nice to know that the bears are looking out for each other," said Evan Richardson, one of the researchers A mother polar bear in Northern Canada appears to have "adopted" a cub that is not ...