The saltwater crocodile, the world's largest riparian predator, is a creature of intense territoriality. With a recorded male specimen measuring 6.2 meters, they are a force to be reckoned with in their environment. Their excellent night vision aids their nocturnal hunting activities. Their eyes contain a high density of specialized cells called rods that enhance their ability to see in low-light conditions. The Australian saltwater crocodile is a highly territorial but not at all social animal. These reptiles are not tolerant of their kind; typically, they do not mind females on their territory but will fiercely drive away rival males.