Why do brown bears live in North America?

Brown bears live in North America because of the abundance of food sources available to them. North America is home to a variety of habitats, from forests to mountains to tundra, which provide a wide range of food sources for brown bears. These include fish, berries, nuts, roots, and small mammals. The availability of these food sources, combined with the relatively mild climate of North America, makes it an ideal habitat for brown bears.