OPTIMIZATION OF NUT-CRACKING WITH NATURAL HAMMERS BY WILD CHIMPANZEES

[1] A NOTE ON THE BEHAVIOR OF THE CHIMPANZEE [J]. JOURNAL OF MAMMALOGY, 1951, 32 (01) : 118 - 118

[2] BECK BB, 1980, ANIMAL TOOL BEHAVIOR

[3] BOESCH C, 1978, TERRE VIE-REV ECOL A, V32, P195

[4] THE NUT-CRACKERS - A NEW THEORY OF THE ADAPTATIONS OF THE RAMAPITHECINAE [J]. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, 1981, 55 (02) : 141 - 151

[5] Leakey R., 1977, ORIGINS

[6] McGrew W.C., 1979, Perspectives on Human Evolution, V5, P441

[7] CHIMPANZEES, TOOLS, AND TERMITES - CROSS-CULTURAL COMPARISONS OF SENEGAL, TANZANIA, AND RIO-MUNI [J]. MAN, 1979, 14 (02): : 185 - 214

[8] TOOL USE BY WILD CHIMPANZEES IN FEEDING UPON DRIVER ANTS [J]. JOURNAL OF HUMAN EVOLUTION, 1974, 3 (06) : 501 - &

[9] OBJECT MANIPULATION, TOOL USE AND SENSORIMOTOR INTELLIGENCE AS FEEDING ADAPTATIONS IN CEBUS MONKEYS AND GREAT APES [J]. JOURNAL OF HUMAN EVOLUTION, 1977, 6 (07) : 623 - 641

[10] PILBEAM D, 1980, CURRENT ARGUMENT EAR, P261

[1] A NOTE ON THE BEHAVIOR OF THE CHIMPANZEE [J]. JOURNAL OF MAMMALOGY, 1951, 32 (01) : 118 - 118

[2] BECK BB, 1980, ANIMAL TOOL BEHAVIOR

[3] BOESCH C, 1978, TERRE VIE-REV ECOL A, V32, P195

[4] THE NUT-CRACKERS - A NEW THEORY OF THE ADAPTATIONS OF THE RAMAPITHECINAE [J]. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, 1981, 55 (02) : 141 - 151

[5] Leakey R., 1977, ORIGINS

[6] McGrew W.C., 1979, Perspectives on Human Evolution, V5, P441

[7] CHIMPANZEES, TOOLS, AND TERMITES - CROSS-CULTURAL COMPARISONS OF SENEGAL, TANZANIA, AND RIO-MUNI [J]. MAN, 1979, 14 (02): : 185 - 214

[8] TOOL USE BY WILD CHIMPANZEES IN FEEDING UPON DRIVER ANTS [J]. JOURNAL OF HUMAN EVOLUTION, 1974, 3 (06) : 501 - &

[9] OBJECT MANIPULATION, TOOL USE AND SENSORIMOTOR INTELLIGENCE AS FEEDING ADAPTATIONS IN CEBUS MONKEYS AND GREAT APES [J]. JOURNAL OF HUMAN EVOLUTION, 1977, 6 (07) : 623 - 641

[10] PILBEAM D, 1980, CURRENT ARGUMENT EAR, P261