Friday, May 28, 2010 5:34:21 PM
@gorgack2000 actually, no they don't: Chimpanzees also use many gestures to indicate needs and emotions. Chimps will beg other chimps for food by approaching them with open hands. Friends may hold hands, hug, or even kiss. A worried chimp makes a lip-puckering face. A frightened chimp will bare its teeth. A smile indicates a relaxed, friendly chimp. When the lips are tightly pressed together, the chimp is ready to attack.
baring your teeth and smiling are totally different things.