(photographs by Mark Furze) A paw print, a hair, and a photograph are all clues that Canada’s grizzly bears are on the move. Recently, Canadian scientists genetically confirmed the sighting of a grizzly bear more than 1000 kilometers north of the species’ known range, proving that Canadians still have a lot to learn about our northern-most animals. Grizzlies seem to be encroaching on the territory of polar bears, a species already threatened by global warming. The two species previously met only on the sea ice near mainland Canada, where they both hunt seals. Though polar bears are generally larger, grizzlies…