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Bear species are large mammals belonging to the family Ursidae. They are typically characterized by a big and stocky body, a short tail, rounded ears, and plantigrade paws with non-retractable claws. Bears have a strong sense of smell and are omnivorous, feeding on a wide variety of foods including berries, fish, insects, and small mammals. There are eight living species of bears, including the polar bear, brown bear, American black bear, Asiatic black bear, sloth bear, sun bear, spectacled bear, and giant panda. Bears can be found in various habitats across North America, South America, Europe, and Asia.