The American Black Bear is the smallest of the 3 North American bears. But it's also the widespread of the 3. The American Black Bear lives in 41 states, most of Canada, and a bit of northern Mexico. This makes them apex predators throughout much of North America, except for places where they live with Grizzly Bears. Grizzly Bears have been known to kill American Black Bears. But since the Grizzly Bear has a smaller range than the American Black Bear, attacks are really rare.