|"As unpredictable—and probably just as controversial—as UFOs, Leyak are a supernatural phenomenon most feared by many Indonesians."|
Chinese mythology: ManMan (蛮蛮，比翼鸟) looks like wild duck. It has only one eye and one wing. It can fly only when two Manman combines together so it gets its name. It is also called Biyiniao (比翼鳥). If it appears, there will be flood.