Dueling serpents.
North
Jolene M
JM
D000818:Animals; D049690:History, Ancient; D049692:History, Early Modern 1451-1600; D049691:History, Medieval; D049711:History, Modern 1601-; D006801:Humans; D012911:Snakes; D013561:Symbolism; D013812:Therapeutics / Q000266:history* / Q000662:veterinary*; D014730:Veterinary Medicine / Q000266:history*