by drag branch. See video. display past Goodall: When a chimp, who is clearly directing a display toward another, passes close, and may hit or kick the other in passing. In 1995 at Mahale, two adult males regularly hit human observers during charging displays. Seen in bonobos. 5. display, rain Goodall Rain display or Rain dance. At Mahale, two types of displays occur at onset or during heavy rain or storms. Not directed at other individuals. One is a noisy, active display accompanied by pant-hoot, charge, run bipedal, stamp etc. Other is prolonged, slow tempo display, of which main components are sway woody vegetation, shake branch, run bipedal, climb rapidly, brachiate and leap. Customary at Gombe, Mahale, Kibale, and habitual at Ta and Budongo. At start of storms