The chimps are somewhere, close but unseen. There is total silence in the beautiful, still forest. We must also be still, merging with our surroundings; present but not intrusive. Suddenly the troop is on the move again. On foot, smashing and crashing through the forest like vandals. Some are swinging through the air, grabbing anything they can to propel themselves through the trees. Their strength is so great; they break off huge branches and vines, destroying small trees as they go.