legs and body are swung forward through the arms. Plooijs crutch. At Mahale, also occurs when a mother carries newborn on belly, accompanied by transport with thigh support. In bonobos, crutch used only as last step of a long walk or as one-step movement while eating or resting. See video. cry See whimper-scream. culture Behavior learned socially after birth, shared by at least most members of one age/sex class in group. See also tradition and fashion. cushion See make cushion. C D D dab Goodall: Rapid hitting movement in which the backs of the flexed fingers are directed toward a more dominant individual, typically an adult male. Only a few individuals, mostly adolescents, have been observed to dab. Usually these individuals dabbed several times in succession, and the