Female polar bear adopts cub in rare case

Scientists in Canada have documented a rare case of female polar bear adopting a new cub.
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Polar Bears International, a non-profit conservation group, said that when they first placed a GPS collar on a female polar bear in the spring, she had one young cub. But when she was spotted with two cubs of roughly the same age last month, they realized they were witnessing an exceedingly rare case of adoption.

“Polar bear adoptions are very rare and unusual and we don’t know why they happen,” said Alysa McCall, of Polar Bears International, calling it an “amazing” sight to witness.
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