The bears include the largest living carnivores—the Grizzly and the Polar bears. Bears have large bodies with short, thick, strong limbs and short tails. They can run well for a short distance, and most can climb trees. Bears are mostly plant-eaters, but do occasionally eat meat. The exception is the Polar bear, which mostly live on seals. All bears go into some form of dormancy during the winter, although not all bears hibernate. Bears are found in North and South America, Europe, and Asia.