A juvenile male polar bear leans on a tundra buggy operated by Great White Bear Tours, 04 November 1999, near Churchill, Manitoba. A report by Ian Sterling with the Canadian Wildlife Service links a decline in the weight of adult polar bears in the western Hudson Bay area to global warming.

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A juvenile male polar bear leans on a tundra buggy operated by Great White Bear Tours, 04 November 1999, near Churchill, Manitoba. A report by Ian Sterling with the Canadian Wildlife Service links a decline in the weight of adult polar bears in the weste