cubs

The two had been inseparable since they were cubs.

In July, two of Grazer's cubs were swept over a waterfall, where Chunk - the most dominant bear on the river - attacked them both, according to explore.org.

The cubs are currently "very fragile and need time to stabilise" under 24-hour intensive care, according to their caretakers.

The bears arrive while he is still there - two females, one with three cubs.

One female grizzly bear, tracked with GPS collar, tucked herself and her two cubs into a wet spot by the Athabasca River as the fire roared through on Wednesday.