Genia great info. We have both blacks and Grizzlies also wolves. The best thing is to keep dogs in the house and use leashes on so they don't try to "protect" your yard. I live only 25 miles from Glacier National Park and the ridge of mountians (rockies)going south has an estamated 75 grizzlies at the last count. So we learn to live with them I would also watch small children and cats.