Just as humans do, animals communicate with body language and sometimes gestures. In addition to using odors, for example, a honeybee uses 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 "saving" 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 stands upright on two legs, moves with a swagger a proud walk, swinging from side to side-and waves her arms or throws branches A nervous chimp who is afraid of a more powerful chimp will lower himself to the ground. hen he either holds out his hand or shows his rear end to the other chimp. Interestingly, when a chimp "smiles," it is not a smile of happiness. Instead, it is an expression similar to the nervous, fearful grin that a human makes in a tense or stressful situation. A powerful chimp will reassure a nervous, fearful chimp by touching, hugging, or kissing him.