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2. Robin Dunber, (Cambridge, Mass.: Harvard Uy Press, 1998).
3. Michael L. Wilson and Richard W. Wrangham, 『Intergroup Relations in Chimpanzees』, 32 (2003), 363-392; M. McFarland Symington, 『Fission-Fusion Social anization in and , 11:1 (1990), 49; A. Chapman and Lauren J. Chapman, 『Determinants of Groups Size in Primates: The Importance of Travel Costs』, in , ed. Sue Boinsky and Paul A. Garber (Chicago: Uy of Chicago Press, 2000), 26.
4. Dunbar, , 69-79; Leslie C. Aiello and R. I. M. Dunbar, 『Neocortex Size, Group Size, and the Evolution of Language』, 34:2 (1993), 189. For criticism of this approach see: Christopher McCarthy et al., 『paring Two Methods for Estimatiwork Size』, 60:1 (2001), 32; R. A. Hill and R. I. M. Dunbar, 『Social work Size in Humans』, 14:1 (2003), 65.
5. Yvette Taborin, 『Shells of the French Aurigna and Perigordian』, in , ed. Heidi K, Anne Pike-Tay and Randall White (Boca Raton: CRC Press, 1993), 211-28.
6. G.R. Summerhayes, 『Application of PIXE-PIGME to Archaeological Analysis of ging Patterns of Obsidian Use i New Britain, Papua New Guinea』, in , ed. Steven M. Shackley (New York: Plenum Press, 1998), 129-58.
7. Christopher Ryan and Cacilda Jethá, (New York: Harper, 2010); S. Beckerman and P. Valentine (eds.), : (Gainesville: Uy Press of Florida, 2002).
8. Noel G. Butlin, : (Cambridge: Cambridge Uy Press, 1993), 98-101; Richard Broome, (Sydney: Allen & Unwin , 2002), 15; William Howell Edwards, (Wentworth Falls, N.S.W.: Social Sce Press, 1988), 52.
9. Fekri A. Hassan, (New York: Academic Press, 1981), 196-99; Lewis Robert Binford, (Berkeley: Uy of California Press, 2001), 143.
10. Brian Hare, (Dutton: Penguin Group, 2013).
11. Christopher B. Ruff, Erik Trinkaus and Trenton W. Holliday, 『Body Mass and Encephalization ioe Homo』 387 (1997), 173-176; M. Henneberg and M. Steyn, 『Trends in ial Capacity and ial Index in Subsaharan Africa During the Holoe』, 5:4 (1993): 473-79; Drew H. Bailey and David C. Geary, 『Hominid Brain Evolutioing Climatic, Ecological, and Social petition Models』, 20 (2009): 67-79; Daniel J. Wescott and Richard L. Jantz, 『Assessing iofacial Secular ge in Ameri Blacks and Whites Usiric Morphometry』, in ed. Dennis E. Sliew York: Plenum Publishers, 2005), 231-45.
12. Nicholas G. Blurton Jo al., 『Antiquity of Postreproductive Life: Are There Modern Impa Hunter-Gatherer Postreproductive Life Spans?』, 14 (2002), 184-205.
13. Kim Hill and A. Magdalena Hurtado, (New York: Aldine de Gruyter, 1996), 164, 236.
14. Hill and Hurtado, , 78.
15. Vinzo Formicola and Alexandra P. Buzhilova, 『Double Child Burial from Sunghir (Russia): Pathology and Inferences for Upper Paleolithierary Practices』, 124:3 (2004), 189-98; Giao Giai, 『Riess and Diversity of Burial Rituals in the Upper Paleolithic』, Diogenes 54:2 (2007), 19-39.
16. I. J. N. Thorpe, 『Anthropology, Archaeology, and the in of Warfare』, 35:1 (2003), 145-65; Raymond C. Kelly, (Ann Arbor: Uy of Michigan Press, 2000); Azar Gat, (Oxford: Oxford Uy Press, 2006); Lawrence H. Keeley, (Oxford: Oxford Uy Press, 1996); Slavomil Vencl, 『Stone Age Warfare』, in , ed. John Carman and Anthony Harding (Stroud: Sutton Publishing, 1999), 57-73.
17. James F. O』el and Jim Allen, 『Pre-LGM Sahul (Pleisto