Grizzlies Move into Polar Bear Territory

From Treehugger:

In Manitoba, Canada, grizzly bears are officially listed as extirpated—a species that does not exist locally, though it is present in the wild elsewhere. With confirmed sightings in the province becoming more frequent, however, this classification may soon change.

If grizzlies become established north of Hudson Bay, researchers say, they could pose a serious threat to the region's polar bear populations.

Article continues: Grizzlies Move into Polar Bear Territory