Up north in the Canadian province of Manitoba, polar bears are receiving some unwelcome guests. Researchers have seen grizzly bears moving into the area for the first time, and that might not be good news for the already-troubled polar bears.
Up north in the Canadian province of Manitoba, polar bears are receiving some unwelcome guests. Researchers have seen grizzly bears moving into the area for the first time, and that might not be good news for the already-troubled polar bears.
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