See play with sand. sand flea Jigger. Common ectoparasite that often burrows under toenails and lays eggs, annoying human, chimpanzee and baboon. See also remove sand flea and medicate self. scan Look in all directions seeking something. Lost juvenile often does so seeking mother after climbing tree. Adults do when looking for others. See also search for conspecific. Also in bonobos. Cf. monitor. scatter dry leaves Rake, shift to left or right, around, or throw forward dry leaves with hand. Infantile expression of dissatisfaction or protest, or solo play. Cf. scratch dry leaves, which adults show as prelude to charging display. 7. See video. scavenge See eat carcass. scoop algae Scoop algae from water using wand of vegetation. Customary at Bossou, and at least one adult male at