From hominoid to hominid mind: What changed and why?

Annual Review of Anthropology

Volumn 40, Issue , 2011, Pages 293-309

  Hare, Brian ^a  

^a DUKE UNIVERSITY   (United States)

Author keywords

Bonobo; Chimpanzee; Human cognitive evolution; Social cognition; Theory of mind

Indexed keywords

ANCESTRY; COGNITION; COMPARATIVE STUDY; EVOLUTIONARY THEORY; HOMINID; ONTOGENY; PRIMATE; PSYCHOLOGY; RESEARCH WORK;

HOMINIDAE; HOMINOIDEA; PAN; PAN PANISCUS;

EID: 80053433113     PISSN: 00846570     EISSN: None     Source Type: Book Series    
DOI: 10.1146/annurev-anthro-081309-145726     Document Type: Article

References (146)

1. Anderson J, Myowa-Yamakoshi M, Matsuzawa T. 2004. Contagious yawning in chimpanzees. Proc. R. Soc. 271: S468-70
2. Astington JW. 2001. The future of theory-of-mind research: understanding motivational states, the role of language, and real-world consequences. Commentary on "Meta-analysis of theory-of-mind development: the truth about false belief." Child Dev. 72: 685-87
3. Astington JW, Jenkins JM. 1999. A longitudinal study of the relation between language and theory-of-mind development. Dev. Psychol. 35: 1311-20
4. Baron-Cohen S. 1995. Mindblindness. Cambridge, MA: MIT Press
5. Baron-Cohen S. 1999. The evolution of a theory of mind. In The Descent of Mind: Psychological Perspectives on Hominid Evolution, ed. M Corballis, S Lea, p. 261-77. Oxford: Oxford Univ. Press
6. Behne T, CarpenterM, Call J, Tomasello M. 2005. Unwilling versus unable: infants understanding of intentional action. Dev. Psychol. 41: 328-37 (Pubitemid 40427379)
7. Bloom P. 2000. How Children Learn the Meanings of Words. Cambridge, MA: MIT Press
8. Brauer J, Call J, Tomasello M. 2007. Chimpanzees really know what others can see in a competitive situation. Anim. Cogn. 10: 439-48 (Pubitemid 47476880)
9. Brosnan S, de Waal F. 2002. Regulation of vocal output by chimpanzees finding food in the presence or absence of an audience. Evol. Commun. 4: 211-24
10. Brosnan SF, Beran MJ. 2009. Trade between conspecifics in chimpanzees (Pan troglodytes). J. Comp. Psychol. 123: 181-94
11. Burnham T, Hare B. 2007. Does involuntary neural activation increase public goods contributions in human adults? Hum. Nat. 18: 88-108
12. Buttelmann D, Carpenter M, Call J, Tomasello M. 2007. Enculturated chimpanzees imitate rationally. Dev. Sci. 10: F31-38
13. ButtelmannD,Carpenter M, Tomasello M. 2009. Eighteen-month-old infants show false belief understanding in an active helping paradigm. Cognition 112: 337-42
14. Byrne R,Whiten A, eds. 1988. Machiavellian Intelligence. Oxford: Oxford Univ. Press
15. Byrne R,Whiten A. 1992. Cognitive evolution in primates: evidence from tactical deception. Man 27: 609-27
16. Byrne RW. 1995. The Thinking Ape: Evolutionary Origins of Intelligence. Oxford: Oxford Univ. Press
17. Byrne RW, Bates LA. 2007. Sociality, evolution and cognition. Curr. Biol. 17(16): R714-23 (Pubitemid 47259361)
18. Call J. 2001. Chimpanzee social cognition. Trends Cogn. Sci. 5: 388-93 (Pubitemid 32761816)
19. Call J, Agnetta B, Tomasello M. 2000. Social cues that chimpanzees do and do not use to find hidden objects. Anim. Cogn. 3: 23-34
20. Call J, Hare B, Carpenter M, Tomasello M. 2004. "Unwilling" versus "unable": chimpanzees understanding of human intentional action. Dev. Sci. 7: 488-98 (Pubitemid 39196544)
21. Call J, Hare B, Tomasello M. 1998. Chimpanzee gaze following in an object choice task. Anim. Cogn. 1: 89-100
22. Call J, Tomasello M. 1999. A nonverbal false belief task: the performance of children and great apes. Child Dev. 70(2): 381-95
23. Call J, Tomasello M. 2007. The Gestural Communication of Apes and Monkeys. New York: Lawrence Erlbaum
24. Call J, Tomasello M. 2008. Does the chimpanzee have a theory of mind 30 years later. Trends Cogn. Sci. 12: 187-92
25. Campbell M, Carter D, ProctorD, Eisenberg M, de Waal F. 2009. Computer animations stimulate contagious yawning in chimpanzees. Proc. R. Soc.: Biol. 276: 4255-59
26. Carpenter M,Nagell K,Tomasello M. 1998. Social cognition, joint attention, and communicative competence from 9 to 15 months of age. Monogr. Soc. Res. Child Dev. 63: 1-143
27. Carruthers P, Smith P. 1996. Theories of Theories of Mind. Cambridge, UK: Cambridge Univ. Press
28. Cheney D, Seyfarth R. 1990a. Attending to behaviour versus attending to knowledge: examining monkeys attribution of mental states. Anim. Behav. 40: 742-53
29. Cheney DL, Seyfarth RM. 1990b. How Monkeys See the World: Inside the Mind of Another Species. Chicago: Univ. Chicago Press
30. Cheney D, Seyfarth R. 2008. Baboon Metaphysics: The Evolution of a Social Mind. Oxford: Oxford Univ. Press
31. Corkum V, Moore C. 1995. Development of joint visual attention in infants. In Joint Attention: Its Origins and Role in Development, ed. C Moore, P Dunham, pp. 61-84. Hillsdale, NJ: Lawrence Erlbaum
32. De Lathouwers M, Van Elsacker L. 2006. Comparing infant and juvenile behavior in bonobos (Pan paniscus) and chimpanzees (Pan troglodytes): a preliminary study. Primates 47(4): 287-93
33. Dennett DC. 1983. Intentional systems in cognitive ethology: the "Panglossian paradigm" defended. Behav. Brain Sci. 6: 343-90
34. De Waal F. 2008. Putting the altruism back into altruism: the evolution of empathy. Annu. Rev. Psychol. 59: 279-300
35. De Waal F, Boesch C, Horner V, Whiten A. 2008. Comparing social skills of children and apes. Science 319: 569 (Pubitemid 351197045)
36. Dunbar R, Shultz S. 2007. Evolution in the social brain. Science 317: 1344-47 (Pubitemid 47417446)
37. Fehr E, Bernhard H, Rockenbach B. 2008. Egalitarianism in young children. Nature 454: 1079-83
38. Fehr E, Fischbacher U. 2004. Social norms and human cooperation. Trends Cogn. Sci. 8: 185-90 (Pubitemid 38429929)
39. Flavell JH. 1999. Cognitive development: children's knowledge about the mind. Annu. Rev. Psychol. 50: 21-45
40. Flombaum J, Santos L. 2005. Rhesus monkeys attribute perceptions to others. Curr. Biol. 15: 447-52 (Pubitemid 40323531)
41. Fitch T, Huber L, Bugnyar T. 2010. Social cognition and the evolution of language: constructing cognitive phylogenies. Neuron 65: 795-814
42. Goodall J. 1971. In the Shadow of Man. Boston: Houghton Mifflin
43. Greenberg J, Hamann K, Warneken F, Tomasello M. 2010. Chimpanzee helping in collaborative and noncollaborative contexts. Anim. Behav. 80: 873-80
44. Gruber T, Clay Z, Zuberbuhler K. 2010. A comparison of bonobo and chimpanzee tool use: evidence for female bias in the Pan lineage. Anim. Behav. 80: 1023-33
45. Hare B. 2001. Can competitive paradigms increase the validity of experiments on primate social cognition? Anim. Cogn. 4: 269-80
46. Hare B. 2007. From nonhuman to human mind: what changed and why. Curr. Dir. Psychol. Sci. 16: 60-64
47. Hare B. 2009. What is the effect of affect on bonobo and chimpanzee problem solving? In The Neurobiology of the Umwelt: How Living Beings Perceive the World, ed. A Berthoz, Y Christen, pp. 89-102. Berlin: Springer
48. Hare B, Addessi E, Call J, Tomasello M, Visalberghi E. 2003. Do capuchin monkeys (Cebus apaella) know what conspecifies do and do not see? Anim. Behav. 65: 131-42 (Pubitemid 36198786)
49. Hare B, Call J, Agnetta B, Tomasello M. 2000. Chimpanzees know what conspecifics do and do not see. Anim. Behav. 59: 771-85
50. Hare B, Call J, Tomasello M. 2001. Do chimpanzees know what conspecifics know? Anim. Behav. 61: 139-51 (Pubitemid 32185299)
51. Hare B, Call J, Tomasello M. 2006. Chimpanzees deceive a human competitor by hiding. Cognition 101: 495-514 (Pubitemid 44511925)
52. Hare B, Kwetuenda S. 2010. Bonobos voluntarily share their own food with others. Curr. Biol. 20: R230-31
53. Hare B, Melis AP, Woods V, Hastings S, Wrangham R. 2007. Tolerance allows bonobos to outperform chimpanzees on a cooperative task. Curr. Biol. 17: 619-23 (Pubitemid 46497800)
54. Hare B, Tan J. 2012. What cooperative abilities did we inherit as an ape? In The Primate Mind, ed. F DeWaal, P Ferrari. Cambridge, MA: Harvard Univ. Press. In press
55. Hare B, Tomasello M. 2004. Chimpanzees aremore skillful in competitive than in cooperative cognitive tasks. Anim. Behav. 68: 571-81 (Pubitemid 39464512)
56. Hattori Y, Kano F, Tomonaga M. 2010. Differential sensitivity to conspecific and allospecific cues in chimpanzees and humans: a comparative eye-tracking study. Biol. Lett. 6: 610-13
57. Hattori Y, Kuroshima H, Fujita K. 2006. I know you are not looking at me: capuchin monkeys sensitivity to human attentional states. Anim. Cogn. 10: 141-48 (Pubitemid 46465360)
58. Hauser MD. 1997. Minding the behaviour of deception. In Machiavellian Intelligence II: Extensions and Evaluations, ed. A Whiten, R Byrne, pp. 112-44. Cambridge, UK: Cambridge Univ. Press
59. Henrich J, Boyd R, Bowles S, Camerer C, Fehr E, Gintis H. 2004. Foundations of Human Sociality. Oxford: Oxford Univ. Press
60. Herrmann E, Call J, Hernandez-Lloreda M, Hare B, Tomasello M. 2007. Humans have evolved specialized skills of social cognition: the cultural intelligence hypothesis. Science 317: 1360-66 (Pubitemid 47417471)
61. Herrmann E, Call J, Hernandez-LLoreda M, Hare B, Tomasello B. 2008. Response to de Waal et al. Science 319: 570-71
62. Herrmann E, Hare B, Call J, Tomasello M. 2010a. Differences in the cognitive skills of bonobos and chimpanzees. Public Libr. Sci. One 5: e12438
63. Herrmann E, Hernandez-Lloreda M, Call J, Hare B, Tomasello M. 2010b. The structure of individual differences in the cognitive abilities of children and chimpanzees. Psychol. Sci. 21: 102-10
64. Heyes C. 1993. Anecdotes, training, trapping and triangulating: Do animals attribute mental states? Anim. Behav. 46: 177-88
65. Heyes C. 1998. Theory of mind in nonhuman primates. Behav. Brain Sci. 21: 101-48 (Pubitemid 28231614)
66. Hill K. 2010. Experimental studies of animal social learning in the wild: trying to untangle the mystery of human culture. Learn. Behav. 38: 319-28
67. Hill K, Barton M, Hurtado AM. 2009. The emergence of human uniqueness: characters underlying behavioral modernity. Evol. Anthropol. 18: 187-200
68. Hirata S, Fuwa K. 2007. Chimpanzees (Pan troglodytes) learn to act with other individuals in a cooperation task. Primates 48: 13-21 (Pubitemid 44921594)
69. Hirata S, Matsuzawa T. 2001. Tactics to obtain a hidden food item in chimpanzee pairs (Pan troglodytes). Anim. Cogn. 4: 285-95
70. Hostetter A, Cantero M, Hopkins W. 2001. Differential use of vocal and gestural communication by chimpanzees (Pan troglodytes) in response to the attentional status of a human (Homo sapiens). J. Comp. Psychol. 115: 337-43 (Pubitemid 33603333)
71. Humphrey N. 1976. The social function of intellect. In Growing Points in Ethology, ed. P Bateson, R Hinde, pp. 303-21. Cambridge, UK: Cambridge Univ. Press
72. Itakura S, Agnetta B, Hare B, Tomasello M. 1999. Chimpanzees use human and conspecific social cues to locate hidden food. Dev. Sci. 2: 448-56
73. Kaminski J, Call J, Tomasello M. 2004. Body orientation and face orientation: two factors controlling apes begging behavior from humans. Anim. Cogn. 7: 216-23 (Pubitemid 39519453)
74. Kaminski J, Call J, Tomasello M. 2008. Chimpanzees know what others know, but not what they believe. Cognition 109: 224-34
75. Kano T. 1992. The Last Ape: Pygmy Chimpanzee Behavior and Ecology. Stanford, CA: Stanford Univ. Press
76. Kano F, Tomonaga M. 2009. How chimpanzees look at pictures: a comparative eye tracking study. Proc. R. Soc.: Biol. Sci. 276: 1949-45
77. Karin-D'Arcy M, Povinelli D. 2002. Do chimpanzees know what each other see? A closer look. Int. J. Comp. Psychol. 15: 21-54 (Pubitemid 37449972)
78. Kobayashi H, Kohshima S. 1997. Unique morphology of the human eye. Nature 387: 767-68 (Pubitemid 27270891)
79. Kuroda S. 1989. Developmental retardation and behavioral characteristics of pygmy chimpanzees. In Understanding Chimpanzees, ed. P Heltne, L Marquardt, pp. 184-93. Cambridge, MA: Harvard Univ. Press
80. Leavens D, Hopkins W. 1998. Intentional communication by chimpanzees: across-sectional study of the use of referential gestures. J. Comp. Psychol. 34: 813-22
81. Lieberman D, Carlo J, Ponce de Leon M, Zollikofer C. 2007. A geometric morphometric analysis of heterochrony in the cranium of chimpanzees and bonobos. J. Hum. Evol. 52: 647-62 (Pubitemid 46746463)
82. Liszkowski U, Carpenter M, Tomasello M. 2008. Twelve-month-olds communicate helpfully and appropriately for knowledgeable and ignorant partners. Cognition 108: 732-39
83. Liszkowski U, Schafer M, Carpenter M, Tomasello M. 2009. Prelinguistic infants, but not chimpanzees, communicate about absent entities. Psychol. Sci. 20: 654-60
84. Lonsdorf E, Ross S, Matsuzawa T. 2010. The Mind of the Chimpanzees: Ecological and Experimental Perspectives. Chicago, IL: Chicago Univ. Press
85. Lovejoy O. 2009. Reexamining human origins in light of Ardipithecus ramidus. Science 326: 74e1-e8
86. Matsuzawa T, Tomonaga M, Tanaka M. 2006. Cognitive Development in Chimpanzees. Tokyo: Springer
87. Melis A, Call J, Tomasello M. 2006a. Chimpanzees conceal visual and auditory information from others. J. Comp. Psychol. 120: 154-62 (Pubitemid 43974506)
88. Melis A, Hare B, Tomasello M. 2006b. Chimpanzees recruit the best collaborators. Science 311(5765): 1297-300 (Pubitemid 43334721)
89. Melis A, Hare B, Tomasello M. 2006c. Engineering cooperation in chimpanzees: tolerance constraints on coopertion. Anim. Behav. 72: 275-86 (Pubitemid 44148493)
90. Melis A, Hare B, Tomasello M. 2008. Do chimpanzees reciprocate received favors? Anim. Behav. 76: 951-62
91. Melis A, Hare B, Tomasello M. 2009. Chimpanzees negotiate in a bargaining game. Evol. Hum. Behav. 30: 381-92
92. Melis A, Warneken F, Jensen K, Schneider A, Call J, Tomasello M. 2010. Chimpanzees help conspecifics obtain food and non-food items. Proc. R. Soc.: Biol. doi: 10.1098/rspb.2010.1735
93. Meltzoff A. 2007. "Like me": a foundation for social cognition. Dev. Sci. 10: 126-34
94. Moore C, Frye D. 1991. The acquisition and utility of theories of mind. In Children's Theories of Mind, ed.D Frye, C Moore, pp. 1-14. Hillsdale, NJ: Erlbaum
95. Palagi E. 2006. Social play in bonobos (Pan paniscus) and chimpanzees (Pan troglodytes): implications for natural social systems and inter-individual relationships. Am. J. Phys. Anthropol. 129: 418-36
96. Palagi E. 2008. Sharing the motivation to play: the use of signals in adult bonobos. Anim. Behav. 75: 887-96 (Pubitemid 351273144)
97. Perner J. 1991. Understanding the Representational Mind. Cambridge, MA: MIT Press
98. Peterson C, Wellman H, Liu D. 2005. Steps in theory-of-mind development for children with deafness or autism. Child Dev. 76: 502-17 (Pubitemid 40550724)
99. PhillipsW, Barnes J,Mahajan N, Yamaguchi M, Santos L. 2009. Unwilling versus unable: capuchin monkeys understanding of human intentional action. Dev. Sci. 12: 938-45
100. Pollick A, de Waal F. 2007. Ape gestures and language evolution. Proc. Natl. Acad. Sci. USA 104: 8184-89 (Pubitemid 47185896)
101. Povinelli DJ. 1994. Comparative studies of animal mental state attribution: a reply to Heyes. Anim. Behav. 48: 239-41 (Pubitemid 2099038)
102. Povinelli DJ. 2000. Folk Physics for Apes. Oxford Univ. Press
103. Povinelli DJ, Eddy TJ. 1996. What young chimpanzees know about seeing. Monogr. Soc. Res. Child Dev. 61(3): 1-191
104. Povinelli DJ, Nelson KE, Boysen ST. 1990. Inferences about guessing and knowing by chimpanzees (Pan troglodytes). J. Comp. Psychol. 104: 203-10
105. Povinelli DJ, Reaux JE, Bierschwale DT, Allain AD, Simon BB. 1997. Exploitation of pointing as a referential gesture in young children, but not adolescent chimpanzees. Cogn. Dev. 12: 327-65
106. Premack D. 1986. "Gavagai!" or the Future History of the Animal Language Controversy. Cambridge, MA: MIT Press
107. Premack D, Woodruff G. 1978. Do chimpanzees have a theory of mind? Behav. Brain Sci. 1: 515-26
108. Preston S, de Waal F. 2002. Empathy: its ultimate and proximate bases. Behav. Brain Sci. 25: 1-72
109. Richerson P, Boyd R, Ibl-Eibisfeldt I, Salter F. 1998. The evolution of human ultrasociality. In Ideology, Warfare, and Indoctrinability, ed. I Ibl-Eibisfeldt, F Salter, pp. 71-95. Oxford, UK: Berghan
110. Rosati A, Santos L, Hare B. 2010. Primate social cognition: thirty years after Premack and Woodruff. In Cognitive Neuroethology, ed. A Gazenifar, M Platt, pp. 117-42. Oxford: Oxford Univ. Press
111. Rosati AG, Hare B. 2009. Looking past the model species: diversity in gaze-following skills across primates. Curr. Opin. Neurobiol. 19(1): 45-51
112. Russon AE, Bard KA, Parker ST, eds. 1996. Reaching into Thought: The Minds of the Great Apes. New York: Cambridge Univ. Press
113. Santos L, Nissen A, Ferrugia J. 2006. Rhesus monkeys, Macaca mulatta, know what others can and cannot hear. Anim. Behav. 71: 1175-81
114. Savage-Rumbaugh ES, Rumbaugh DM, Premack D, Woodruff G. 1979. Chimpanzee problem comprehension: insufficient evidence. Science 206: 1201-2 (Pubitemid 10159662)
115. Shettleworth S. 2010. Cognition, Evolution, and Behavior. Oxford: Oxford Univ. Press
116. Silk J. 2008. Social preferences in primates. In Neuroeconomics: Decision Making and the Brain, ed. P Glimcher, C Camerer, E Fehr, R Poldrack, pp. 269-84. New York: Academic
117. Silk JB, Brosnan SF, Vonk J, Henrich J, Povinelli DJ, et al. 2005. Chimpanzees are indifferent to the welfare of unrelated group members. Nature 437: 1357-59 (Pubitemid 41568681)
118. Spelke E, Kinzler K. 2007. Core knowledge. Dev. Sci. 10: 89-96
119. Subiaul F, Vonk J,Barth J, Okamoto-Barth S. 2008.Dochimpanzees learn reputation by observation Evidence from direct and indirect experience with generous and selfish strangers. Anim. Cogn. 11: 611-23
120. Suddendorf T, Whiten A. 2003. Reinterpreting the mentality of apes. In From Mating to Mentality: Evaluating Evolutionary Psychology, ed. K Sterelny, J Fitness, pp. 173-96. New York: Psychology
121. Tomasello M. 1999. The Cultural Origins of Human Cognition. Cambridge, MA: Harvard Univ. Press
122. Tomasello M. 2003. Constructing a Language: A Usage-Based Theory of Language Acquisition. Cambridge, MA: Harvard Univ. Press
123. Tomasello M, Call J. 1997. Primate Cognition. New York: Oxford Univ. Press
124. Tomasello M, Call J, Hare B. 2003. Chimpanzees understand psychological states-The question is which ones and to what extent. Trends Cogn. Sci. 7: 153-56 (Pubitemid 36411821)
125. Tomasello M, Carpenter M. 2005. The emergence of social cognition in three young chimpanzees. Monogr. Soc. Res. Child Dev. 70: 1-155
126. Tomasello M, CarpenterM,Call J, Behne T, Moll H. 2005. Understanding and sharing intentions: the origins of cultural cognition. Behav. Brain Sci. 28: 675-735
127. Tomasello M, Hare B, Lehmann H, Call J. 2007. Reliance on head versus eyes in the gaze following of great apes and human infants: the cooperative eye hypothesis. J. Hum. Evol. 52: 314-20 (Pubitemid 46238149)
128. Tomonaga M, Imura T. 2010. Visual search for human gaze direction by a chimpanzee. PLoS One. 5: e9131. doi: 10.1371/journal.pone.0009131
129. Vlemmings P,Hare B, Call J. 2010. Reaching around barriers: the performance of great apes and 3-5 year-old children. Anim. Cogn. 13: 273-85
130. Vonk J, Brosnan S, Silk J, Henrich J, Richardson A, et al. 2008. Chimpanzees do not take advantage of very low cost opportunities to deliver food to unrelated group members. Anim. Behav. 75: 1757-70
131. Warneken F, Chen F, Tomasello M. 2006. Cooperative activities in young children and chimpanzees. Child Dev. 77: 640-63 (Pubitemid 43736539)
132. Warneken F, Hare B, Melis A, Hanus D, Tomasello M. 2007. Spontaneous altruism by chimpanzees and children. Public Libr. Sci.: Biol. 5: 1-7
133. Warneken F, Tomasello M. 2006. Altruistic helping in human infants and young chimpanzees. Science 311: 1301-3 (Pubitemid 43334722)
134. Warneken F, Tomasello M. 2007. Helping and cooperation at 14 months of age. Infancy 11: 271-94 (Pubitemid 46952211)
135. Warneken F, Tomasello M. 2008. Extrinsic rewards undermine altruistic tendencies in 20-month-olds. Dev. Psychol. 44(6): 1785-88
136. Wellman H. 1990. The Child's Theory of Mind. Cambridge, MA: MIT Press
137. Wellman H, Brandone A. 2009. Early intention understandings that are common to primates predict children's later theory of mind. Curr. Opin. Neurobiol. 19: 57-62
138. Wellman HM, Lane JD, LaBounty J, Olson SL. 2010. Observant, nonaggressive temperament predicts theoryof- mind development. Dev. Sci. 14(2): 319-26
139. Whiten A. 1996. When does behavior-reading becomemind-reading. See Carruthers & Smith 1996, pp. 277-92
140. Wobber V, Hare B, Maboto J, Lipson S, Wrangham R, Ellison P. 2010a. Differential reactivity of steroid hormones in chimpanzees and bonobos when anticipating food competition. Proc. Natl. Acad. Sci. USA 107: 12457-62
141. Wobber V, Wrangham R,Hare B. 2010b. Application of the heterochrony framework to the study of behavior and cognition. Commun. Integr. Biol. 3(4): 1-2
142. Wobber V, Wrangham R, Hare B. 2010c. Bonobos exhibit delayed development of social behavior and cognition relative to chimpanzees. Curr. Biol. 20: 226-30
143. Won Y, Hey J. 2005. Divergence population genetics of chimpanzees. Mol. Biol. Evol. 22: 297-307 (Pubitemid 40130197)
144. Wood J, Glynn D, Phillips B, HauserM. 2007. The perception of rational, goal-directed action in nonhuman primates. Science 317: 1402-5 (Pubitemid 47417483)
145. Woods V, Hare B. 2010. Bonobo but not chimpanzee infants use socio-sexual contact with peers. Primates 52(2): 111-16
146. Wrangham R, Pilbeam D. 2001. African apes as time machines. In All Apes Great and Small, ed. B Galdikas, N Briggs, L Sheeran, G Shapiro, J Goodall, pp. 5-18. New York: Kluwer Acad./Plenum