The largest species of wolf is the gray wolf (Canis lupus), which is known for its remarkable adaptability and diverse range. These wolves can be found in various habitats across North America, Europe, and Asia. Gray wolves typically weigh between 50 to 110 pounds (23 to 50 kg) and can stand about 26 to 32 inches tall at the shoulder. Their fur varies in color, often ranging from gray to brown, black, and white. They are social animals, living in packs that usually consist of a family unit. Their role as apex predators helps maintain the balance in ecosystems.