its entire body in a complex "dance
to give other bees exact directions to
flowers. A dog expresses happiness
by wagging his tail, as most people
know. But what is the dog in the
photo "saying"? His stomach is on the
ground; his rear end is up in the air,
and his tail is wagging. This means
"I want to play." Chimpanzees in the
wild communicate a wide variety of gestures and facial expressions, as we learn from the research of
primatologist Jane Goodall.
To express anger, for example, a chimp stand
upright on two legs, moves with a swagger- a proud
walk, swinging from side to side-and