A sphinx is a mythical creature with the head of a human and the body of a lion.
In Greek tradition, it has the head of a human, the haunches of a lion, and sometimes the wings of a bird. It is mythicised as treacherous and merciless. Those who cannot answer its riddle suffer a fate typical in such mythological stories, as they are killed and eaten by this ravenous monster. This deadly version of a sphinx appears in the myth and drama of Oedipus.