They weigh up to 275 pounds with a body length of 64 to 76 inches. Sloth Bears are also medium sized bears. American Black Bears are medium sized bears. Brown Bears are one of the largest species of bears. Polar Bears are considered to be the largest.
Most bears are just like people, wanting a diet composed of many different types of food.
That's called being omnivorous and American black bears, brown bears, spectacled bears, Asian black bears and sun bears are all omnivores. They'll eat grubs, berries and herbaceous plants in huge quantities. These bears will also eat squirrels, mice, fish and a large bear may even kill a deer. Some bears are more specialized feeders, like the polar bear, living on the cold arctic ice, is almost exclusively a meat eater or carnivore. But on those few rare occasions when a polar bear can find a berry patch in bloom, then every one of those berries will be eaten and enjoyed.