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  1. Jaimie Arona Krems & R. I. M. Dunbar (2013). Clique Size and Network Characteristics in Hyperlink Cinema. Human Nature 24 (4):414-429.
    Hyperlink cinema is an emergent film genre that seeks to push the boundaries of the medium in order to mirror contemporary life in the globalized community. Films in the genre thus create an interacting network across space and time in such a way as to suggest that people’s lives can intersect on scales that would not have been possible without modern technologies of travel and communication. This allows us to test the hypothesis that new kinds of media might permit us (...)
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  2. Susanne Shultz & R. I. M. Dunbar (2012). The Social Brain Hypothesis : An Evolutionary Perspective on the Neurobiology of Social Behaviour. In Sarah Richmond, Geraint Rees & Sarah J. L. Edwards (eds.), I Know What You're Thinking: Brain Imaging and Mental Privacy. Oxford University Press.
  3. G. A. de Laguna, F. B. M. deWaal, G. Dell, E. Deloria, J. L. Dessalles, G. Deutscher, E. A. DiPaolo, R. Dixon, R. I. M. Dunbar & G. Duyk (2010). Grice, HP 105,114 Gross, J. 82 Guillaume, P. 36, 49 Gussenhoven, C. 139, 151 H. In M. Arbib D. Bickerton (ed.), The Emergence of Protolanguage: Holophrasis Vs Compositionality. John Benjamins. 175.
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  4. R. I. M. Dunbar (2009). Richard Wrangham, Catching Fire: How Cooking Made Us Human. [REVIEW] Human Nature 20 (4):447-449.
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  5. W. Iredale, M. Van Vugt, R. I. M. Dunbar & G. Miller (2009). The Peacock's Tail of Altruism. Human Nature 18:88-108.
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  6. R. I. M. Dunbar (2008). Mind the Gap: Or Why Humans Aren't Just Great Apes. Proceedings of the British Academy 154:403-423.
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  7. Denis K. Deady, Miriam J. Law Smith, J. P. Kent & R. I. M. Dunbar (2006). Is Priesthood an Adaptive Strategy? Human Nature 17 (4):393-404.
    This study examines the socioeconomic and familial background of Irish Catholic priests born between 1867 and 1911. Previous research has hypothesized that lack of marriage opportunities may influence adoption of celibacy as part of a religious institution. The present study traced data from Irish seminary registries for 46 Catholic priests born in County Limerick, Ireland, using 1901 Irish Census returns and Land Valuation records. Priests were more likely to originate from landholding backgrounds, and with landholdings greater in size and wealth (...)
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  8. R. I. M. Dunbar (2006). Putting Humans in Their Proper Place. Behavioral and Brain Sciences 29 (1):15-16.
    Striedter's account of human brain evolution fails on two key counts. First, he confuses developmental constraints with selection explanations in the initial jump in hominid brain size around two MYA. Second, he misunderstands the Machiavellian Intelligence explanation.
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  9. B. Pawłowski & R. I. M. Dunbar (2005). Waist-to-Hip Ratio Versus Body Mass Index as Predictors of Fitness in Women. Human Nature 16 (2):164-177.
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  10. R. A. Hill & R. I. M. Dunbar (2003). Social Network Size in Humans. Human Nature 14 (1):53-72.
    This paper examines social network size in contemporary Western society based on the exchange of Christmas cards. Maximum network size averaged 153.5 individuals, with a mean network size of 124.9 for those individuals explicitly contacted; these values are remarkably close to the group size of 150 predicted for humans on the basis of the size of their neocortex. Age, household type, and the relationship to the individual influence network structure, although the proportion of kin remained relatively constant at around 21%. (...)
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  11. R. I. M. Dunbar (2001). Confounding Explanations. . . Behavioral and Brain Sciences 24 (2):283-283.
    I argue that, while Finlay et al, are correct to suggest that there are developmental regularities (or constraints) acting on brain component evolution, they are incorrect to infer from this that a developmental explanation necessarily implies that structural changes preceded functional use. Developmental and functional (adaptationist) explanations are complementary, not alternatives.
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  12. R. I. M. Dunbar (2001). So How Do They Do It? Behavioral and Brain Sciences 24 (2):332-333.
    While the evidence that cetaceans exhibit behaviours that are every bit as cultural as those recognised in chimpanzees is unequivocal, I argue that it is unlikely that either taxon has the social cognitive mechanisms required to underpin the more advanced forms of culture characteristic of humans (namely those that depend on shared meaning).
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  13. Susan Kelly & R. I. M. Dunbar (2001). Who Dares, Wins. Human Nature 12 (2):89-105.
    Heroism is apparently nonadaptive in Darwinian terms, so why does it exist at all? Risk-taking and heroic behavior are predominantly male tendencies, and literature and legend reflect this. This study explores the possibility that heroism persists in many human cultures owing to a female preference for risk-prone rather than risk-averse males as sexual partners, and it suggests that such a preference may be exploited as a male mating strategy. It also attempts to quantify the relative influences of altruism and bravery (...)
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  14. J. E. Lycett & R. I. M. Dunbar (2000). Mobile Phones as Lekking Devices Among Human Males. Human Nature 11 (1):93-104.
    This study investigated the use of mobile telephones by males and females in a public bar frequented by professional people. We found that, unlike women, men who possess mobile telephones more often publicly display them, and that these displays were related to the number of men in a social group, but not the number of women. This result was not due simply to a greater number of males who have telephones: we found an increase with male social group size in (...)
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  15. Eckart Voland & R. I. M. Dunbar (1997). The Impact of Social Status and Migration on Female Age at Marriage in an Historical Population in North-West Germany. Journal of Biosocial Science 29 (3):355-360.
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  16. R. I. M. Dunbar (1996). Deception as Cause or Consequence of Language? Behavioral and Brain Sciences 19 (3):548.
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  17. R. I. M. Dunbar (1996). The Trouble with Science. Harvard University Press.
    Science is not a great way to make money, or these days, even a job. But there are great riches in it, and in this book too. Tim Bradford, 'New Scientist'.
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  18. R. I. M. Dunbar (1995). Neocortical Size and Language. Behavioral and Brain Sciences 18 (2):388.
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  19. R. I. M. Dunbar, N. D. C. Duncan & D. Nettle (1995). Size and Structure of Freely Forming Conversational Groups. Human Nature 6 (1):67-78.
    Data from various settings suggest that there is an upper limit of about four on the number of individuals who can interact in spontaneous conversation. This limit appears to be a consequence of the mechanisms of speech production and detection. There appear to be no differences between men and women in this respect, other than those introduced by women’s lighter voices.
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  20. R. I. M. Dunbar & M. Spoors (1995). Social Networks, Support Cliques, and Kinship. Human Nature 6 (3):273-290.
    Data on the number of adults that an individual contacts at least once a month in a set of British populations yield estimates of network sizes that correspond closely to those of the typical “sympathy group” size in humans. Men and women do not differ in their total network size, but women have more females and more kin in their networks than men do. Kin account for a significantly higher proportion of network members than would be expected by chance. The (...)
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  21. Eckart Voland & R. I. M. Dunbar (1995). Resource Competition and Reproduction. Human Nature 6 (1):33-49.
    A family reconstitution study of the Krummhörn population (Ostfriesland, Germany, 1720–1874) reveals that infant mortality and children’s probabilities of marrying or emigrating unmarried are affected by the number of living same-sexed sibs in farmers’ families but not in the families of landless laborers. We interpret these results in terms of a “local resource competition” model in which resource-holding families are obliged to manipulate the reproductive future of their offspring. In contrast, families that lack resources have no need to manipulate their (...)
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  22. R. I. M. Dunbar (1994). Darwinism Applied: Evolutionary Paths to Social Goals. By John H. Beckstrom. Pp. 173. (Praeger, Westport, Connecticut, 1993.) £40.50. [REVIEW] Journal of Biosocial Science 26 (4):565-567.
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  23. R. I. M. Dunbar (1993). Coevolution of Neocortical Size, Group Size and Language in Humans. Behavioral and Brain Sciences 16 (4):681-694.
    Group size is a function of relative neocortical volume in nonhuman primates. Extrapolation from this regression equation yields a predicted group size for modern humans very similar to that of certain hunter-gatherer and traditional horticulturalist societies. Groups of similar size are also found in other large-scale forms of contemporary and historical society. Among primates, the cohesion of groups is maintained by social grooming; the time devoted to social grooming is linearly related to group size among the Old World monkeys and (...)
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  24. R. I. M. Dunbar (1993). On the Evolution of Alternative Reproductive Strategies. Behavioral and Brain Sciences 16 (2):291.
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  25. R. I. M. Dunbar (1993). On the Origins of Language: A History of Constraints and Windows of Opportunity. Behavioral and Brain Sciences 16 (4):721.
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  26. R. I. M. Dunbar (1993). The Modern Mind: Its Missing Parts? Behavioral and Brain Sciences 16 (4):758.
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  27. R. I. M. Dunbar (1992). Phylogeny, Ecology and Behaviour. By D. R. Brooks & D. A. McLennan. Pp. 434. (University of Chicago Press, Chicago, 1991.). [REVIEW] Journal of Biosocial Science 24 (1):139-141.
  28. R. I. M. Dunbar (1991). Marriage Rules in Perspective. Behavioral and Brain Sciences 14 (2):268-269.
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  29. R. I. M. Dunbar (1989). Genetic Similarity Theory Needs More Development. Behavioral and Brain Sciences 12 (3):520.
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  30. R. I. M. Dunbar (1989). Selfishness Reexamined. Behavioral and Brain Sciences 12 (4):700.
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  31. R. I. M. Dunbar (1988). How to Break Moulds. Behavioral and Brain Sciences 11 (2):254.
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