RE: What do you Get when a Polar Bear and a Grizzly bear have a cub?

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What do you Get when a Polar Bear and a Grizzly bear have a cub?

in nature •  7 years ago 

Its said only possible because polar bears are a relatively new species of bear, that only broke off in the last few thousand years. So the genetics are not so diverse and can still cooperate and produce fertile life.

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