Bears are often portrayed in cartoons and movies as bloodthirsty predators, but most actually eat more plants than animals. With the exception of polar bears, every species of bear eats some type of plant, berry or insect daily. In fact, the Giant Panda eats nothing but bamboo! Other bears, however, take meat when they can find it and fill in the rest of their diet with vegetation. Because most bears are apex predators, or the top of the food chain in their habitat, they rarely have to hunt and can simply steal meat from other animals. The two most common types of bears in North America are the black and brown bear. Black bears have the greatest population in the United States, while brown bears are known for their most famous subspecies, the fearsome grizzly bear. Surprisingly, these two species are not closely related. The American black bear is much smaller, weighing up to 550 pounds compared to the 800 pounds of a grizzly. They live in the same areas but don't see too much of each other, since they forage for food at different times of the day. Both species, however, must prepare for the long winter and hibernation. So, What do Bears Eat? Keep reading to learn how these massive animals prepare to spend months without eating anything at all.