The Cockatrice is a fictious creature said to be hatched from a cock's egg by a serpent. It is an ugly creature with a crested head, glittering eyes, a barbed tongue and a serpents tail. Mention is made of the Cockatrice in several passages of the bible. It probably has as its origin the hermaphroditic fowl - a crowing hen - which is known to occur in nature. In 1474 a Basel cock was sentenced to death for laying an egg! Research Cockatrice