Chimpanzees live in rainforest habitats where the rainy season brings regular thunderstorms. But these African apes make little attempt to stay dry in the rain. They often huddle miserably and simply get wet. Sometimes though, chimpanzees perform what researchers call “rain dances”: vigorous yet deliberate physical and auditory displays. Male chimpanzees charge through the forest, rhythmically swaggering, drumming their feet on tree buttresses, slapping the ground, breaking and dragging vegetation, and making loud vocalizations.