Caduceus is a continuation of the older Indo-European dragon-slayer motif. Wilhelm Heinrich Roscher (1913) pointed out that the serpent as an attribute of both Hermes and Asclepius is a variant of the "pre-historic semi-chthonic serpent hero known at Delphi as Python", who in classical mythology is slain by Apollo. One Greek myth of origin of the caduceus is part of the story of Tiresias, who found two snakes copulating and killed the female with his staff. Tiresias was immediately turned into a woman, and so remained until he was able to repeat the act with the male snake seven years later.
Serpent (symbolism) "dragon" (OE: "draca", OHG: "trahho", ON: "dreki"). In China and especially in Indochina, the Indian serpent nāga was equated with the "lóng" or Chinese dragon. The Aztec and Toltec serpent god Quetzalcoatl also has dragon like wings, like its equivalent in K'iche' Maya mythology Q'uq'umatz ("feathered serpent"), which had previously existed since Classic Maya times as the deity named Kukulkan. The Minoan Snake Goddess brandished a serpent in either hand, perhaps evoking her role as source of wisdom, rather than her role as Mistress of the Animals ("Potnia theron"), with a leopard under each arm. Serpents figured prominently in archaic