SEX-DIFFERENCES IN THE USE OF NATURAL HAMMERS BY WILD CHIMPANZEES - A PRELIMINARY-REPORT

[1] OBSERVATIONAL STUDY OF BEHAVIOR - SAMPLING METHODS [J]. BEHAVIOUR, 1974, 49 (3-4) : 227 - 267

[2] BECK BB, 1980, ANIMAL TOOL BEHAVIOR

[3] BOESCH C, UNPUBLISHED

[4] FOOD-SHARING BEHAVIOR OF PROTOHUMAN HOMINIDS [J]. SCIENTIFIC AMERICAN, 1978, 238 (04) : 90 - &

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

[6] McGrew W. C., 1977, PRIMATE BIOSOCIAL DE, P159

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

[8] Siegel S., 1956, NONPARAMETRIC STAT B

[9] PRIMATE SUBSISTENCE PATTERNS - COLLECTOR-PREDATORS AND GATHERER-HUNTERS [J]. JOURNAL OF HUMAN EVOLUTION, 1975, 4 (02) : 125 - 184

[10] Teleki G., 1973, Scientific American, V228, P32

[1] OBSERVATIONAL STUDY OF BEHAVIOR - SAMPLING METHODS [J]. BEHAVIOUR, 1974, 49 (3-4) : 227 - 267

[2] BECK BB, 1980, ANIMAL TOOL BEHAVIOR

[3] BOESCH C, UNPUBLISHED

[4] FOOD-SHARING BEHAVIOR OF PROTOHUMAN HOMINIDS [J]. SCIENTIFIC AMERICAN, 1978, 238 (04) : 90 - &

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

[6] McGrew W. C., 1977, PRIMATE BIOSOCIAL DE, P159

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

[8] Siegel S., 1956, NONPARAMETRIC STAT B

[9] PRIMATE SUBSISTENCE PATTERNS - COLLECTOR-PREDATORS AND GATHERER-HUNTERS [J]. JOURNAL OF HUMAN EVOLUTION, 1975, 4 (02) : 125 - 184

[10] Teleki G., 1973, Scientific American, V228, P32