Ursidae is the scientific family that includes bears, a group of large mammals known for their stout bodies, thick fur, and strong limbs. There are eight species of bears, including the American black bear, grizzly bear, and polar bear. They are found in various habitats, from forests to tundras, and are primarily omnivorous, feeding on a mix of plants, fruits, and animals. Bears are known for their intelligence and adaptability. They have excellent senses of smell and hearing, which help them locate food. Many species hibernate during winter months, entering a state of reduced metabolic activity to conserve energy.