The Ningen are creatures that just recently started being spotted by Japanese fishermen. Some describe the creatures as being albino, somewhat shaped like a human and up to 90 feet in length. What could the Ningen be? Some have speculated that they are giant, albino rays, while others have somewhat odder theories, i.e. aliens, water demons, aliens, and other. With so little known about the ocean the Ningen can't simply be dismissed, but whether or not they truly exist is still a mystery.