The 牙 (Tooth)'s JiaGuWen Chinese like S 's Phoenician picture... http://en.wikipedia.org/wiki/Phoenician_alphabet It is cool. from "Brain and Cognitive Sciences" view, seems human-being has similar view of the 牙 (Tooth) at that time.. but evolutionary process is different at later.
http://www.chineseetymology.org/CharacterEtymology.aspx?submitButton1=Etymology&characterInput=%E7%89%99
