Handedness in a nonindustrial society challenges the fighting hypothesis as an evolutionary explanation for left-handedness

Annett, 1970, A classification of hand preference by association analysis, British Journal of Psychology, 61, 303, 10.1111/j.2044-8295.1970.tb01248.x Annett, 2004, Hand preference observed in large healthy samples: classification, norms and interpretations of increased non-right-handedness by the right shift theory, British Journal of Psychology, 95, 339, 10.1348/0007126041528130 Bisiacchi, 1985, Left-handedness in fencers: an attentional advantage?, Perceptual and motor skills, 61, 507, 10.2466/pms.1985.61.2.507 Braun, 1985 Chagnon, 1988, Life histories, blood revenge, and warfare in a tribal population, Science, 239, 985, 10.1126/science.239.4843.985 Connolly, 1992, The measurement of handedness: a cross-cultural comparison of samples from England and Papua New Guinea, Neuropsychologia, 30, 13, 10.1016/0028-3932(92)90010-J Dane, 2005, Differences in handedness and scores of aggressiveness and interpersonal relations in soccer players, Perceptual and motor skills, 100, 743, 10.2466/pms.100.3.743-746 Faurie, 2005, Handedness, homicide and negative frequency-dependent selection, Proceedings of the Royal Society B: Biological Sciences, 272, 25, 10.1098/rspb.2004.2926 Faurie, 2005, Variation in the frequency of left‐handedness in traditional societies, Current Anthropology, 46, 142, 10.1086/427101 Francks, 2002, A genomewide linkage screen for relative hand skill in sibling pairs, American Journal of Human Genetics, 70, 800, 10.1086/339249 Harris, 2010, In fencing, what gives left-handers the edge? Views from the present and the distant past, Laterality, 15, 15, 10.1080/13576500701650430 Heeschen, 1983, 139 Llaurens, 2009, Why are some people left-handed? An evolutionary perspective. Philosophical transactions of the Royal Society of London. Series B, Biological Sciences, 364, 881, 10.1098/rstb.2008.0235 Marchant, 1995, Is human handedness universal? Ethological analyses from three traditional cultures, Ethology, 101, 239, 10.1111/j.1439-0310.1995.tb00362.x Medland, 2009, Genetic influences on handedness: data from 25,732 Australian and Dutch twin families, Neuropsychologia, 47, 330, 10.1016/j.neuropsychologia.2008.09.005 Oldfield, 1971, The assessment and analyses of handedness: the Edinburgh inventory, Neuropsychologia, 9, 97, 10.1016/0028-3932(71)90067-4 Papadatou-Pastou, 2008, Sex differences in left-handedness: a meta-analysis of 144 studies, Psychological Bulletin, 134, 677, 10.1037/a0012814 Ploeg, 2004, The German Eipo Research Project, Journal de la Société des Océanistes, 118, 35, 10.4000/jso.263 Raymond, 1996, Frequency-dependent maintenance of left handedness in humans, Proceedings of the Royal Society B: Biological Sciences, 263, 1627, 10.1098/rspb.1996.0238 Reio, 2004, Handedness and spatial ability: differential patterns of relationships, Laterality, 9, 339, 10.1080/13576500342000220 Saulnier, 1960 Schiefenhövel, 1976, Die Eipo-Leute des Berglands von Indonesisch-Neuguinea: Kurzer Überblick über den Lebensraum und seine Menschen. Einführung zu den Eipo-Filmen des Humanethologischen Filmarchivs der Max-Planck-Gesellschaft, Homo, 26, 263 Schiefenhövel, 1991, Eipo, Vol. II, Oceania, 55 Schiefenhövel, 2001, Kampf, Krieg und Versöhnung bei den Eipo im Bergland von West-Neuguinea-Zur Evolutionsbiologie und Kulturanthropologie aggressiven Verhaltens, 169 Siegel, 1956 Sicotte, 1999, Handedness in twins: a meta-analysis, Laterality, 4, 265, 10.1080/135765099396980 Vallortigara, 2006, The evolutionary psychology of left and right: costs and benefits of lateralization, Developmental Psychobiology, 48, 418, 10.1002/dev.20166 van der Hoorn, 2010, Non-right-handedness and mental health problems among adolescents from the general population: the Trails Study, Laterality, 15, 304, 10.1080/13576500902746839 van Strien Vayda, 1989, Explaining why Marings fought, Journal of Anthropological Research, 45, 159, 10.1086/jar.45.2.3630332