A DNA test has confirmed what zoologists, big-game hunters and aboriginal trackers in the far northern reaches of Canada have imagined for years: the first documented case of a hybrid grizzly-polar bear in the wild.
"Roger Kuptana, an Inuit tracker from the Northwest Territories, suspected the American hunter he was guiding had shot a hybrid bear last month after noticing its white fur had brown patches and it had the long claws and slightly humped back of a grizzly."
http://www.cnn.com/2006/WORLD/americas/05/11/canada.hybrid.ap/index.html