The Ecology and Evolution of Social Behavior and Cognition in Primates

The Oxford Handbook of Comparative Evolutionary Psychology

Volumn , Issue , 2012, Pages

  Boesch, Christophe ^a  

^a MAX PLANCK INSTITUTE FOR EVOLUTIONARY ANTHROPOLOGY   (Germany)

Author keywords

Altruism; Chimpanzees; Cooperation; Ecological validity; Ecology; Primates; Sociality

Indexed keywords

EID: 84897617703     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1093/oxfordhb/9780199738182.013.0026     Document Type: Chapter

References (150)

1. Alberts, S., & Altmann, J. (1995). Balancing costs and opportunities: Dispersal in male baboons. American Naturalist, 145, 279-306.
2. Alcock, J. (1989). Animal behavior: An evolutionary approach (4th ed.) Sunderland, MA: Sinauer Associates.
3. Allen, C. (2002). A skeptic's progress. Biology and Philosophy, 17, 695-702.
4. Anderson, D., Nordheim, E., Boesch, C., & Moermond, T. (2002). Factors influencing fission-fusion grouping in chimpanzees in the Taï forest, Côte d'Ivoire. In C. Boesch, G. Hohmann, & L. Marchant (Eds.), Chimpanzee behavioural diversity (pp. 90-101). Cambridge, England: Cambridge University Press.
5. Atran, S., Medin, D., & Ross, N. (2005). The cultural mind: Environmental decision making and cultural modeling within and across populations. Psychological Review, 112, 744-776.
6. Axelrod, R., & Hamilton, W. D. (1981). The evolution of cooperation. Science, 211, 1390-1396.
7. Bard, K., Myowa-Yamakoshi, M., Tomonaga, M., Tanaka, M., Costall, A., & Matsuzawa, T. (2005). Group differences in the mutual gaze of chimpanzees (Pan troglodytes). Developmental Psychology, 41, 615-624.
8. Barrett, L., Gaynor, D., & Henzi, P. (2002). A dynamic interaction between aggression and grooming reciprocity among female chacma baboons. Animal Behaviour, 63, 1047-1053.
9. Barrett, L., Henzi, P., & Rendall, D. (2007). Social brains, simple minds: Does social complexity really require cognitive complexity. Philosophical Transcriptions of the Royal Society, Series B, 362, 561-575.
10. Barth, J., Reaux, J., & Povinelli, D. (2005). Chimpanzees' (Pan troglodytes) use of gaze cues in object-choice tasks: Different methods yield different results. Animal Cognition, 8, 84-92.
11. Bekoff, M., & Allen, C. (1997). Cognitive ethology: Slayers, skeptics and proponents. In R. Mitchell, N. Thompson, & L. Miles (Eds.), Anthropomorphism, anecdotes and animals: The emperor's new clothes? (pp. 314-334). New York: State University of New York Press.
12. Berry, J., Poortinga, Y., Segall, M., & Dasen, P. (2002). Cross-cultural psychology: Research and applications. (2nd ed.). Cambridge, England: Cambridge University Press.
13. Boesch, C. (1991). The effect of leopard predation on grouping patterns in forest chimpanzees. Behaviour, 117, 220-242.
14. Boesch, C. (1994). Cooperative hunting in wild chimpanzees. Animal Behaviour, 48, 653-667.
15. Boesch, C. (2002). Cooperative hunting roles among Taï chimpanzees. Human Nature, 13, 27-46.
16. Boesch, C. (2005). Joint cooperative hunting among wild chimpanzees: Taking natural observations seriously. Behavioral and Brain Sciences, 28, 692-693.
17. Boesch, C. (2007). What makes us human (Homo sapiens)? The challenge of cognitive cross-species comparison. Journal of Comparative Psychology, 121, 227-240.
18. Boesch, C. (2008). Taking ecology and development seriously when comparing cognition: Reply to Tomasello and Call 2008. Journal of Comparative Psychology, 122, 453-455.
19. Boesch, C. (2009). The real chimpanzee: Sex strategies in the forest. Cambridge, England: Cambridge University Press.
20. Boesch, C. (2010). Away from ethnocentrism and anthropocentrism: Toward a scientific understanding of "what makes us human". Behavioral and Brain Sciences, 33.
21. Boesch, C., & Boesch, H. (1989). Hunting behavior of wild chimpanzees in the Taï National Park. American Journal of Physical Anthropology, 78, 547-573.
22. Boesch, C., & Boesch-Achermann, H. (2000). The chimpanzees of the Taï Forest: Behavioural ecology and evolution. Oxford, England: Oxford University Press.
23. Boesch, C., Bolé, C., Eckhardt, N., & Boesch, H. (2010). Altruism in chimpanzees: The case of adoption. PLoS One, 5, e8901.
24. Boesch, C., Crockford, C., Herbinger, I., Wittig, R., Moebius, Y., & Normand, E. (2008). Intergroup conflicts among chimpanzees in Taï National Park: Lethal violence and the female perspective. American Journal of Primatology, 70, 1-14.
25. Bowles, S., Choi, J., & Hopfensitz, A. (2003). The coevolution of individual behaviors and social institutions. Journal of Theoretical Biology, 223, 135-147.
26. Boyd, R., Gintis, H., Bowles, S., & Richerson, P. (2003). The evolution of altruistic punishment. PNAS, 100, 3531-3535.
27. Bradsley, N. (2008). Dictator game giving: Altruism or artifact? Experimental Economy, 11, 122-133.
28. Brosnan, S., Silk, J., Henrich, J., Mareno, M., Lambeth, S., & Shapiro, S. (2009). Chimpanzees (Pan troglodytes) do not develop contingent reciprocity in an experimental task. Animal Cognition, 12, 587-597.
29. Bshary, R., Grutter, A., Willener, A., & Leimar, O. (2008). Pairs of cooperating cleaner fish provide better service quality than singletons. Nature, 455, 964-967.
30. Cheney, D., & Seyfarth, R. (1990). How monkeys see the world. Chicago: The University of Chicago Press.
31. Cheney, D., & Seyfarth, R. (2007). Baboon metaphysics: The evolution of a social mind. Chicago: The University of Chicago Press.
32. Clarke, P., Henzi, S., Barrett, L., & Rendall, D. (2008). On the road again: Competitive effects and condition dependent dispersal in male baboons. Animal Behaviour, 76, 55-63.
33. Clutton-Brock, T. (2009). Cooperation between non-kin in animal societies. Nature, 462, 51-57.
34. Cooper, S. (1991). Optimal hunting group size: The need for lions to defend their kills against loss to spotted hyenas. African Journal of Ecology, 29, 130-136.
35. Dana, J., Cain, D., & Dawes, R. (2006). What you don't know won't hurt me: Costly (but quiet) exit in dictator games. Organizational Behavior and Human Decision Processes, 100, 193-201.
36. de Waal, F. (2001). The ape and the sushi master: Cultural reflections of a primatologist. New York: Basic Books.
37. de Waal, F. (2008). Putting the altruism back into altruism: the evolution of empathy. Annual Review of Psychology, 59, 279-300.
38. de Waal, F., & Ferrari, P. (2010). Toward a bottom-up perspective on animal and human cognition. Trends in Cognitive Sciences, 14, 201-207.
39. de Waal, F., & Luttrell, L. (1988). Mechanisms of social reciprocity in three primates species: Symmetrical relationship characteristics or cognition? Ethology and Sociobiology, 9, 101-118.
40. Dugatkin, L. (1997). Cooperation among animals: An evolutionary perspective. Oxford, England: Oxford University Press.
41. Emery, N., & Clayton, N. (2004). Mentality of crows: Convergent evolution of intelligence in corvids and apes. Science, 306, 1903-1907.
42. Fehr, E., & Fischbacher, U. (2003). The nature of human altruism. Nature, 425, 785-791.
43. Fehr, E., & Gächter, S. (2002). Altruistic punishment in humans. Nature, 415, 137-140.
44. Fitch, T., Huber, L., & Bugnyar, T. (2010). Social cognition and the evolution of language: Constructing cognitive phylogenies. Neuron, 65, 795-814.
45. Fox, S., Levitt, P., & Nelson, C. (2010). How the timing and quality of early experiences influence the development of brain architecture. Child Development, 81, 28-40.
46. Galef, B. (1990). Tradition in animals: Field observations and laboratory analyses. In M. Bekoff, & D. Jamieson (Eds.), Interpretation and explanation in the study of animal behavior (pp. 74-95). Boulder, CO: Westview Press.
47. Gardner, B., & Gardner, R. (1989). Prelinguistic development of children and chimpanzees. Human Evolution, 4, 433-460.
48. Gilby, I. (2006). Meat sharing among the Gombe chimpanzees: Harassment and reciprocal exchange. Animal Behaviour, 71, 953-963.
49. Gilby, I., Eberly, L., Pintea, L., & Pusey, A. (2006). Ecological and social influences on the hunting behaviour of wild chimpanzees, Pan troglodytes schweinfurthii. Animal Behaviour, 72, 169-180.
50. Gilby, I., Eberly, L., & Wrangham, R. (2008). Economic profitability of social predation among wild chimpanzees: Individual variation promotes cooperation. Animal Behaviour, 75, 351-360.
51. Gintis, H., Bowles, S., Boyd, R., & Fehr, E. (2003). Explaining altruistic behavior in humans. Evolution and Human Behavior, 24, 153-172.
52. Gomes, C., & Boesch, C. (2009). Wild chimpanzees exchange meat for sex on a long-term basis. PLoS One, 4, e5116.
53. Gomes, C., & Boesch, C. (2011). Reciprocity and trades in wild West African chimpanzees. Behavioral Ecology and Sociobiology, published online 26 July 2011. doi: 10.1007/s00265-011-1227-x.
54. Gomes, C., Mundry, R., & Boesch, C. (2009). Long-term reciprocation of grooming in wild West African chimpanzees. Proceedings of the Royal Society B. 276, 699-706.
55. Goodall, J. (1986). The chimpanzees of Gombe: Patterns of behavior. Cambridge, MA: Belknap Press of Harvard University.
56. Goodall, J., Bandura, A., Bergmann, E., Busse, C., Matam, H., Mpongo, E., Pierce, A., & Riss, D. (1979). Inter community interactions in the chimpanzee populations of the Gombe National Park. In D. Hamburg & E. McCown (Eds.), The great apes (pp. 13-53). Menlo Park, CA: Benjamin/Cummings.
57. Gordon, P. (2004). Numerical cognition without words: Evidence from Amazonia. Science, 306, 496-499.
58. Greenfield, P. (1999). Cultural change and human development. New Directions for Child and Adolescent Development, 83, 37-59.
59. Hamilton, W. D. (1964). The genetical theory of social behaviour (I and II). Journal of Theoretical Biology, 7, 1-32.
60. Harlow, H., & Harlow, M. (1962). Social deprivation in monkeys. Scientific American, 207, 136-146.
61. Hauser, M. (2000). Wild minds: What animals really think. New York: Henry Holt.
62. Hauser, M. (2006). Moral minds: The nature of right and wrong. New York: HarperCollins.
63. Hauser, M., McAuliffe, K., & Blake, P. (2009). Evolving the ingredients for reciprocity and spite. Philosophical Transactions of the Royal Society, Series B, 364, 3255-3266.
64. Henrich, J., Ensminger, J., Boyd, R., Henrich, N., Bowles, S., Hill, K., Camerer, C., Gil-White, F., Fehr, E., Gurven, M., Gintis, H., Marlowe, F., McElreath, R., Patton, J., Alvard, M., Tracer, D., & Barr, A. (2005). "Economic man" in cross cultural perspective: Behavioral experiments in 15 small-scale societies. Behavioral and Brain Sciences, 28, 795-855.
65. Henrich, J., Ensminger, J., McElreath, R., Barr, A., Barrett, C., Bolyanatz, A., Cardenas, J., Gurven, M., Gwako, E., Henrich, N., Lesorogol, C., Marlowe, F., Tracer, D., & Ziker, J. (2010). Markets, religion, community size and the evolution of fairness and punishment. Science, 327, 1480-1484.
66. Henrich, J., Heine, S., & Norenzayan, A. (in press). The weirdest people in the world? Behavioral and Brain Sciences.
67. Henrich, J., & Henrich, N. (2006). Culture, evolution and the puzzle of human cooperation. Cognitive Systems Research, 7, 220-245.
68. Henrich, J., McElreath, R., Barr, A., Ensminger, J., Barrett, C., Bolyanath, A., Cardenas, J., Gurven, M., Gwako, E., Henrich, N., Lesorogol, C., Marlowe, F., Tracer, D., & Ziker, J. (2006). Costly punishment across human societies. Science, 312, 1767-1770.
69. Heyes, C. M. (1993). Anecdotes, training, trapping and triangulating: Do animals attribute mental states? Animal Behaviour, 46, 177-188.
70. Hirata, S., & Fuwa, K. (2007). Chimpanzees (Pan troglodytes) learn to act with other individuals in a cooperative task. Primates, 48, 13-21.
71. Horner, V., Carter, D., Suchak, M. and de Waal, F. 2011. Spontaneous prosocial choice by chimpanzees. PNAS. Early edition, doi: 10.1073/pnas 1111088108.
72. Hrdy, S. (2009). Mothers and others: The evolutionary origins of mutual understanding. Cambridge, MA: Belknap Press of Harvard University.
73. Ijzendoorn, M., van Bard, K., Bakermans-Kranenberg, M., & Ivan, K. (2009). Enhancement of attachment and cognitive development of young nursery-reared chimpanzees in responsive versus standard care. Developmental Psychobiology, 51, 173-185.
74. Jaeggi, S., Buschkuehl, M., Jonides, J., & Perrig, W. (2008). Improving fluid intelligence with training on working memory. Proceedings of the National Academy of Science, 105, 6829-6833.
75. Jensen, K., Call, J., & Tomasello, M. (2007). Chimpanzees are rational maximizers in an ultimate game. Science, 318, 107-109.
76. Keller, H., Yovsi, R., Borke, J., Kartner, J., Jensen, H., & Papaligoura, Z. (2004). Developmental consequences of early parenting experiences: Self-recognition and self-regulation in three cultural communities. Child Development, 75, 1745-1760.
77. Kempes, M., Den Heijer, E., Korteweg, L., Louwerse, A., & Sterck, E. (2009). Socially deprived rhesus macaques fail to reconcile: Do they not attempt or not accept reconciliation? Animal Behaviour, 78, 271-277.
78. Koenig, A., & Borries, C. (2001). Socioecology of Hanuman langurs: The story of their success. Evolutionary Anthropology, 10, 122-137.
79. Krebs, J. R., & Davies, N. B. (1991). An introduction to behavioural ecology (3rd ed.). Oxford, England: Blackwell Scientific Publications.
80. Kummer, H. (1968). Social organization of Hamadryas baboons: A field study. Bibliotheca Primatology, 6. Chicago: University of Chicago Press.
81. Langergraber, K., Mitani, J., & Vigilant, L. (2009). Kinship and social bonds in female chimpanzees (Pan troglodytes). American Journal of Primatology, 71, 1-12.
82. Lehmann, J. & Boesch, C. (2005). Bisexually-bonded ranging in chimpanzees (Pan troglodytes verus). Behavioral Ecology and Sociobiology, 57, 525-535.
83. Lehmann, J., Fickenscher, G., & Boesch, C. (2006). Kin biased investment in wild chimpanzees. Behaviour, 143, 931-955.
84. Lesorogol, C. (2007). The role of context in experimental dictactor games. Current Anthropology, 48, 920-926.
85. Levitt, S., & List, J. (2007). What do laboratory experiments measuring social preferences reveal about the real world? Journal of Economic Perspectives, 21, 153-174.
86. Levitt, S., & List, J. (2008). Homo economicus evolves. Science, 319, 909-910.
87. Light, K., Kolata, S., Wass, C., Denman-Brice, A., Zagalsky, R., & Matzel, L. (2010). Working memory training promotes general cognitive abilities in genetically heterogeneous mice. Current Biology, 20, 1-6.
88. List, J. (2006). The behavioralist meets the market: Measuring social preferences and reputation effects in actual transactions. Journal of Political Economy, 114, 1-37.
89. List, J. (2007). On the interpretation of giving in dictator games. Journal of Political Economy, 115, 482-493.
90. Lyn, H., Russell, J., & Hopkins, W. (2010). The impact of environment on the comprehension of declarative communication in apes. Psychological Science, 21, 360-365.
91. Marlowe, F., Berbesque, J., Barr, A., Barrett, C., Bolyanatz, A., Cardenas, J., Ensminger, J., Gurven, M., Gwako, E., Henrich, J., Henrich, N., Lesorogol, C., McElreath, R., & Tracer, D. (2008). More "altruistic" punishment in larger societies. Proceedings of the Royal Society B, 275, 587-590.
92. Mason, W. (1978). Social experience and primate development. In G.M. Burghardt & M. Bekoff (Eds.), The development of behavior: Comparative and evolutionary aspects (pp. 233-251). New York: Garland Press.
93. Mathew, S., Shungu, D., Mao, X., Smith, E., Perera, G., Kegeles, L., Perera, T., Lisanby, S., Rosenblum, L., Gorman, J., & Coplan, J. (2003). A magnetic resonance spectroscopic imaging study of adult nonhuman primates exposed to early-life stressors. Biological Psychiatry, 54, 727-735.
94. Maynard Smith, J. (1982). Evolution and the theory of games. Cambridge, England: Cambridge University Press.
95. McNamara, J., Barta, Z., Fromhage, L., & Houston, A. (2008). The coevolution of choosiness and cooperation. Nature, 451, 189-192.
96. Melis, A., Hare, B., & Tomasello, M. (2006). Chimpanzees recruit the best collaborators. Science, 311, 1297-1300.
97. Mitani, J. (2009a). Male chimpanzees form enduring and equitable social bonds. Animal Behaviour, 77, 633-640.
98. Mitani, J. (2009b). Cooperation and competition in chimpanzees: Current understanding and future challenges. Evolutionary Anthropology, 18, 215-227.
99. Mitani, J., & Watts, D. (2001). Why do chimpanzees hunt and share meat? Animal Behaviour, 61, 1-10.
100. Mitani, J., Watts, D., & Lwanga, J. (2002). Ecological and social correlates of chimpanzee party size and composition. In C. Boesch, G. Hohmann, & L. Marchant (Eds.), Behavioural diversity in chimpanzees and bonobos (pp. 102-111). Cambridge, England: Cambridge University Press.
101. Mitani, J., Watts, D., & Muller, M. (2002). Recent development in the study of wild chimpanzee behaviour. Evolutionary Anthropology, 11, 9-25.
102. Moll, H., & Tomasello, M. (2007). Cooperation and human cognition: The Vygotskian intelligence hypothesis. Philosophical Transcriptions of the Royal Society, B., 362, 639-648.
103. Nelson, C., Zeanah, C., Fox, N., Marshall, P., Smyke, A., & Guthrie, D. (2007). Cognitive recovery in socially deprived young children: The Bucharest early intervention project. Science, 318, 1937-1940.
104. Nisbett, R., & Miyamoto, Y. (2005). The influence of culture: Holistic versus analytic perception. Trends in Cognitive Sciences, 9, 467-473.
105. Nishida, T., Hasegawa, T., Hayaki, H., Takahata, Y., & Uehara, S. (1992). Meat-sharing as a coalition strategy by an alpha male chimpanzee? In T. Nishida, W. C. McGrew, P. Marler, M. Pickford, &F. de Waal (Eds.), Topics in primatology: Human origins Vol. 1. (pp. 159-174). Basel, Switzerland: Karger AG.
106. Nowak, M. (2006). Five rules for the evolution of cooperation. Science, 314, 1560-1563.
107. Packer, C., & Ruttan, L. (1988). The evolution of cooperative hunting. American Naturalist, 132, 159-198.
108. Packer, C., Scheel, D., & Pusey, A. E. (1990). Why lions form groups: Food is not enough. American Naturalist, 136, 1-19.
109. Palombit, R. (1999). Infanticide and the evolution of pair bonds in nonhuman primates. Evolutionary Anthropology, 7, 117-129.
110. Penn, D., Holyoak, K., & Povinelli, D. (2008). Darwin's mistake: Explaining the discontinuity between human and nonhuman minds. Behavioral and Brain Sciences, 31, 109-178.
111. Penn, D., & Povinelli, D. (2007). On the lack of evidence that non-human animals possess anything remotely resembling a "theory of mind". Philosophical Transactions of the Royal Society, Series B, 362, 731-744.
112. Pollack, S., Nelson, C., Schlaak, M., Roeber, B., Wewerka, S., Wiik, K., Frenn, K., Loman, M., & Gunnar, M. (2010). Neurodevelopmental effects of early deprivation in postinstitutionalized children. Child Development, 81, 224-236.
113. Povinelli, D. (2000). Folk physics for apes: The chimpanzee's theory of how the world works. Oxford, England: Oxford University Press.
114. Raihani, N., Grutter, A., & Bshary, R. (2010). Punishers benefit from third-party punishment in fish. Science, 327, 171.
115. Riedman, M. (1982). The evolution of alloparental care and adoption in mammals and birds. The Quarterly Review of Biology, 57, 405-435.
116. Sanchez, M., Hearn, E., Do, D., Rilling, J., & Herndon, J. (1998). Differential rearing affects corpus callosum size and cognitive function of rhesus monkeys. Brain Research, 812, 38-49.
117. Sanchez, M., Ladd, C., & Plotsky, P. (2001). Early adverse experience as a developmental risk factor for later psychopathology: Evidence from rodent and primate models. Development and Psychopathology, 13, 419-449.
118. Schaller, G. B. (1972). The Serengeti lion. Chicago: University of Chicago Press.
119. Schino, G., & Aureli, F. (2009). Reciprocal altruism in primates: Partner choice, cognition and emotions. Advances in the Study of Behavior, 39, 45-69.
120. Schino, G., & Aureli, F. (2010). The relative roles of kinship and reciprocity in explaining primate altruism. Ecology Letters, 13, 45-50.
121. Schreier, A., & Swedell, L. (2009). The fourth level of social structure in a multi-level society: Ecological and social functions of clans in Hamadryas baboons. American Journal of Primatology, 71, 948-955.
122. Shettleworth, S. (1998). Cognition, evolution and behavior. New York: Oxford University Press.
123. Silk, J., Alberts, S., & Altmann, J. (2006a). Social relationships among adult female baboons (Papio cynocephalus) I. Variation in the strength of social bonds. Behavioral Ecology and Sociobiology, 61, 183-195.
124. Silk, J., Alberts, S., & Altmann, J. (2006b). Social relationships among adult female baboons (Papio cynocephalus) II. Variation in the quality and stability of social bonds. Behavioral Ecology and Sociobiology, 61, 197-204.
125. Silk, J., Brosnan, S., Vonk, J., Henrich, J., Povinelli, D., Richardson, A., Lambeth, S., Mascaro, J., & Schapiro, S. (2005). Chimpanzees are indifferent to the welfare of unrelated group members. Nature 437, 1357-1359.
126. Smyke, A., Zeanah, C., Fox, N., Nelson, C., & Guthrie, D. (2010). Placement in foster care enhances quality of attachment among young institutionalized children. Child Development, 81, 212-223.
127. Stander, P. E. (1992). Cooperative hunting in lions: The role of the individual. Behavioral Ecology and Sociobiology, 29, 445-454.
128. Stander, P. E., & Albon, S. D. (1993). Hunting success of lions in a semi-arid environment. Symposium of the Zoological Society, London, 65, 127-143.
129. Stevens, J., & Hauser, M. (2004). Why be nice? Psychological constraints on the evolution of cooperation. Trends in Cognitive Sciences, 8, 60-65.
130. Strum, S. (1981). Processes and products of change: Baboon predatory behavior at Gilgil, Kenya. In R. S. O. Harding & G. Teleki (Eds.), Omnivorous primates: Gathering and hunting in human evolution (pp. 255-302). New York: Columbia University Press.
131. Suddendorf, T., & Corballis, M. (2007). The evolution of foresight: What is mental travel and is it unique to humans? Behavorial and Brain Sciences, 30, 299-351.
132. Thierry, B., & Anderson, J. (1987). Adoption in anthropoid primates. International Journal of Primatology, 7, 191-216.
133. Tomasello, M., &. Call, J. (1997). Primate cognition. Oxford, England: Oxford University Press.
134. Tomasello, M., &. Call, J. (2008). Assessing the validity of ape-human comparisons: A reply to Boesch (2007). Journal of Comparative Psychology, 122, 449-452.
135. Tomasello, M., Carpenter, M., Call, J., Behne, T., & Moll, H. (2005). Understanding and sharing intentions: The origins of cultural cognition. Behavioral and Brain Sciences, 28, 675-691.
136. Trivers, R. L. (1971). The evolution of reciprocal altruism. Quarterly Review of Biology, 46, 35-57.
137. Trivers, R. L. (1985). Social evolution. Menlo Park, CA: Benjamin/Cummings Publishing Company.
138. van Schaik, C. (1996). Social evolution in primates: The role of ecological factors and male behaviour. Proceeding of the British Academy, 88, 9-31.
139. van Schaik, C., & Kappeler, P. (1997). Infanticide risk and the evolution of male-female association in primates. Proceeding of the Royal Society London, Series B, 264, 1687-1694.
140. Vonk, J., Brosnan, S., Silk, J., Henrich, J., Richardson, A., Lambeth, S., Schapiro, S., & Povinelli, D. (2008). Chimpanzees do not take advantage of very low cost opportunities to deliver food to unrelated group members. Animal Behaviour, 75, 1757-1770.
141. Warneken, F., Hare, B., Melis, A., Hanus, D., & Tomasello, M. (2007). Spontaneous altruism by chimpanzees and young children. PLoS Biology, 5, e184.
142. Warneken, F., & Tomasello, M. (2006). Altruistic helping in human infants and young chimpanzees. Science, 311, 1301-1303.
143. Watts, D., & Mitani, J. (2001). Boundary patrols and intergroup encounters in wild chimpanzees. Behaviour, 138, 299-327.
144. Watts, D., & Mitani, J. (2002). Hunting and meat sharing by chimpanzees of Ngogo, Kibale National Park, Uganda. In C. Boesch, G. Hohmann, & L. Marchant (Eds.), Behavioural diversity in chimpanzees and bonobos (pp. 244-255). Cambridge, England: Cambridge University Press.
145. Watts, D., Muller, M., Amsler, S., Mbabazi, G., & Mitani, J. (2006). Lethal intergroup aggression by chimpanzees in the Kibale National Park, Uganda. American Journal of Primatology, 68, 161-180.
146. West, S., & Gardner, A. (2010). Altruism, spite and greenbeard. Science, 327, 1341-1344.
147. West, S., Griffin, A., & Gardiner, A. (2007). Social semantics: Altruism, cooperation, mutualism, strong reciprocity and group selection. Journal of Evolutionary Biology, 20, 415-432.
148. Williams, J., Pusey, A., Carlis, J., Farm, B., & Goodall, J. (2002). Female competition and male territorial behaviour influence female chimpanzees' ranging patterns. Animal Behaviour, 63, 347-360.
149. Wolpert, L. (2007). Causal belief makes human. In C. Pasternak, (Ed.), What makes us human? (pp. 164-181). Oxford, England: Oneworld Publications.
150. Yamamoto, S., & Tanaka, M. (2010). The influence of kin relationship and reciprocal context on chimpanzee's other-regarding preferences. Animal Behaviour, 79, 595-602.