 Chimpanzees live in communities that typically range from 20 to more than 150 members, but spend most of their time traveling in small parties of just a few individuals.The eastern chimpanzee is both arboreal and terrestrial and spend its nights in the trees, while most of its daytime hours are spent on the ground.Chimpanzees walk using the soles of their feet and their knuckles, and they can walk upright for short distances.