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 ...

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 ...

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 ...

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 ...

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