Roger Kuptana, an Inuit tracker from the Northwest Territories, suspected the American hunter he was guiding had shot a hybrid bear after noticing its white fur was spotted brown and it had the long claws and slightly humped back of a grizzly.
Territorial officials seized the bear's body and a DNA test from Wildlife Genetics International, a lab in British Columbia, confirmed the hybrid was born of a polar bear mother and grizzly father.
``It's something we've all known was theoretically possible because their habitats overlap a little bit and their breeding seasons overlap a little bit,'' said Ian Stirling, a biologist with the Canadian Wildlife Service in Edmonton, Alberta. ``It's the first time it's known to have happened in the wild.''
He said the first person to realize something was different about the bear - shot and killed last month on the southern end of Banks Island in the Beaufort Sea - was Kuptana, the guide.
``These guides know their animals and they recognized that there were a number of things that didn't look quite right for a polar bear,'' Stirling told The Associated Press. The bear's eyes were ringed with black, its face was slightly indented, it had a mild hump to its back and long claws.
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