Ursus americanus, commonly known as the American black bear, is a medium-sized bear species native to North America. They typically weigh between 100 to 600 pounds and can stand up to 5 feet tall at the shoulder. Their fur is usually black, but can also be brown, cinnamon, or even blonde in some regions. These bears are highly adaptable and can be found in various habitats, including forests, swamps, and mountains. American black bears are omnivorous, feeding on a diverse diet that includes fruits, nuts, insects, and small mammals. They are generally solitary animals, except for mothers with cubs or during mating season. Ursus americanus plays a crucial role in its ecosystem by helping to disperse seeds and maintain healthy forest environments.