Hibernation occurs when food supply runs low and temperatures drop. Hibernation differs from sleep by reducing body activity and metabolism. Most hibernating animals don't go into deep sleep but slow down
Brown bears have distinctive shoulder hump, dish-shaped face, and long claws. They can vary in color from black to blonde. Size, coloring, diet, and sleeping patterns vary by location
American black bears are most common North American bear species. Diet varies by location and season, depending on food availability. Bears can identify food by smell and appearance