Polar Ursine Maternal Figure Takes In Cub in Infrequently Documented Instance

Scientists tracking wild polar bears in Canada's northern regions witnessed something exceedingly rare this fall: a mother bear adopting a cub that was not genetically her own.

The five-year-old mother and her nearly year-old cubs were observed and filmed during the annual polar bear journey along the Hudson Bay's western shore near the Manitoba town of Churchill, an locale known for its concentration of Arctic bears.

"This is uncommon," remarked a researcher with an international bear organization. "We don't really know why it occurs...but we know it is a rare event at all."

This represents only the 13th known case of fostering out of nearly five thousand bears researched for nearly five decades in that region.

The female bear was initially tagged as she came out from her maternity den this springtime. Initially, she had one cub, which researchers marked for research.

In the autumn, she was spotted once more, but this time with two cubs - the initially tagged cub and another without a tag. Researchers aren't sure what became of the new cub's biological mother, but they are attempting to identify her using genetic samples.

"The bears need every advantage they can get in the current era with a warming climate," commented a wildlife biologist. "If females have the chance to pick up an additional youngster and raise it and successfully wean it, it's a positive development for the bears."

Polar bears in the natural world only have a 50% chance of surviving into maturity, but having a maternal figure providing care improves their odds.

The young bears appear to be healthy, according to experts, and they will likely stay with their mother until they are about 30 months of age.

Following this, the family is anticipated to head out to sea ice, where the cubs will be taught from their mother how to hunt seals and survive on their own.

"It's just nice to know that the animals are caring for each other," concluded the scientist.