Two headed Snake Hair apin by Little Rooms Etah love only tagged for exposure. Bicephaly, the scientific name for having two heads, represents many things in mythology and history. In some ancient civilizations, a two-headed snake was a symbol of rebirth, while others considered it an example of the duality of life and death. This hair clip measures 3 inches in length and can be worn to one side for a statement or on the back of the head to add some flair.