J Human Evol 10:227244 McGrew WC, Baldwin PJ, Tutin CEG Diet of wild chimpanzees at Mt. Assirik, Senegal. I. Composition. Am J Primatol 1:21322 McGrew WC, Collins DA Tool use by wild chimpanzees to obtain termites in the Mahale Mountains, Tanzania. Am J Primatol 9:47 2 McGrew WC, Marchant LF Chimpanzee wears a knotted skin necklace. Pan Afr News 5:89 McGrew WC, Marchant LF Laterality of hand use pays off in foraging success for wild chimpanzees. Primates 40:509513 McGrew WC, Marchant LF, Hunt KD Ethoarchaeology of manual laterality; well-digging by wild chimpanzees. Folia Primatol 78:240244 220 References McGrew WC, Marchant LF, Scott SE, Tutin CEG Intergroup differences in a social custom of wild chimpanzees: the grooming hand-clasp of the Mahale Mountains. Curr Anthropol 42:148153 McGrew WC, Marchant LF,