An example of this, is the sudden striker snake of Sunzi's Art of War that was supposed to be able to fight with both head and tail, and was used as a simile for how a general who is expert at military deployment does so. The Sudden Striker snake supposedly lived on Mount Ch'ang: (Roger T. Ames believes this to have been Mount Heng, but written with a different character to avoid a naming taboo on the given name of Han Wendi).