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.
Snake Eyes (G.I. Joe) G.I. Joe. He was given the name "Hebi no me" ("Snake Eyes") by his Arashikage clan sensei, Hard Master, because he possesses the "steely gaze of a serpent". He cannot speak after having his throat punctured, and just shows up for special missions when called by Scarlett, who can "translate" what he is thinking. He is not used to teamwork, but now that he has joined G.I. Joe, his sense of honor and morality would not let him walk away. In the episode "Dreadnoks Rising", Zartan takes off his visor but puts it back on and says, "You need it