Bibliography
The epigraphs at the head of each chapter are all from the poems of Robert Burns (1759–1796), whose deep attachment to his wife Jean Armour never seemed to interfere with his romantic propensity to fall in love with every other woman that came his way.
Translations of poetry are by M. Rehman (Amir Khusrau Dehlavi), Paul Brians (de Marchaut), Tambimuttu and G. V. Vaidya (Klidsa), www.simonhuggins.com/uricon/classic/anon/sumerian_love_poem.htmandheritage-key.com/world/sumerian-love-poem.
Baumeister, R. F. & Bratslavsky, E. (1999). Passion, intimacy, and time: passionate love as a function of change in intimacy. Personality and Social Psychology Review 3: 49–67.
Berscheid, E. (1994). Interpersonal relationships. Annual Review of Psychology 45: 79–129.
Broad, K. D., Curley, J. P. & Keverne, E. B. (2006). Mother–infant bonding and the evolution of mammalian social relationships. Philosophical Transactions of the Royal Society, London 361B: 2199–214.
Collins, W. A., Welsh, D. P. & Furman, W. (2009). Adolescent romantic relationships. Annual Review of Psychology 60: 631–52.
Deacon, T. W. (1997) The Symbolic Species: The Co-Evolution of Language and the Brain. New York: Norton.
Dunbar, R. I. M., Cornah, L., Daly, F. & Bowyer, K. (2002). Vigilance in humans: a test of alternative hypotheses. Behaviour 139: 695–711.
Dunbar, R. I. M. & Dunbar, P. (1980). The pairbond in klipspringer. Animal Behaviour 28: 251–63.
Fisher, H. E. (1992). Anatomy of Love. New York: Random House.
Fisher, H. E. (2004). Why We Love. New York: Holt.
Fisher, H. E., Aron, A. & Brown, L. L. (2006). Romantic love: a mammalian brain system for mate choice. Philosophical Transactions of the Royal Society, London 361B: 2173–86.
Hegner, R. E., Elmen, S. T. & Demong, J. (1982). Spatial organisation of the white-fronted bee-eater. Nature 298: 264–6.
Jankowiak, W. R. & Fischer, E. F. (1992). A cross-cultural perspective on romantic love. Ethnology 31: 149–55.
Kaplan, R. H. and Toshima, M. T. (1990). The functional effects of social relationships on chronic illness and disability. In B. R. Sarason (ed.), Social Support: An Interactional View. Wiley: New York.
Krame, S. N. (1963). The Sumerians: Their History, Culture and Character. Chicago: University of Chicago Press.
Kummer, H. (1995). In Quest of the Sacred Baboon: A Scientist’s Journey. Princeton (NJ): Princeton University Press.
Kummer, H., Goetz, W. & Angst, W. (1974). Triadic differentiation: an inhibitory process protecting pair bonds in baboons. Behaviour 49: 62–87.
Levin, J. S. (1994). Religion and health: is there an association, is it valid, and is it causal? Social Science and Medicine 38: 1475–82.
Lin, Y. (1961). The Lolo of Llang Shan. New Haven: HRAF Press.
Lundström, J. N. & Jones-Gotman, M. (2009). Romantic love modulates women’s identification of men’s body odors. Hormones and Behavior 55: 280–4.
Maner, J. K., Rouby, D. A. & Gonzaga, G. C. (2008). Automatic inattention to attractive alternatives: the evolved psychology of relationship maintenance. Evolution and Human Behavior 29: 343–9.
Murray, S. L., Griffin, D. W., Derrick, J. L., Harris, B., Aloni, M. & Leder, S. (2011). Tempting fate or inviting happiness? Unrealistic idealization prevents the decline of marital satisfaction. Psychological Science 22: 619–26.
Murray, S. L., Holmes, J. G. & Griffin, D. W. (1996). The benefits of positive illusions: idealization and the construction of satisfaction in close relationships. Journal of Personality and Social Psychology 70: 79–98.
Shostak, M. (1981). Nisa: The Life and Words of a !Kung Woman. New York: Random House.
Sternberg, R. J. (1997). Construct validation of a triangular love scale. European Journal of Social Psychology 27: 313–35.
Amico, J. A., Mantella, R. C., Vollmer, R. R. & Li, X. (2004). Anxiety and stress responses in female oxytocin deficient mice. Journal of Neuroendocrinology 16: 319–24.
Bales, K. L., Mason, W. A., Catana, C., Cherry, S. R. & Mendoza, S. P. (2007). Neural correlates of pair-bonding in a monogamous primate. Brain Research 1184: 245–53.
Belluzzi, J. D. & Stein, L. (1977). Enkephalin may mediate euphoria and drive-reduction reward. Nature 266: 556–8.
Bielsky, I. F., Hu, S.-B., Szegda, K. L., Westphal, H. & Young, L. J. (2004). Profound impairment in social recognition and reduction in anxiety-like behavior in vasopressin V1a receptor knockout mice. Psychoneuroendocrinology 29: 483–93.
Birk, L. S., Tan, S. A., Fry, W. F., Napier, B. J., Lee, J. W., Hubbard, R. W., Lewis, J. E. & Eby, W. C. (1989). Neuroendocrine and stress hormone changes during mirthful laughter. American Journal of Medical Science 298: 390–6.
Boecker, H., Sprenger, T., Spilker, M. E., Henriksen, G., Koppenhoef-fer, M., Wagner, K. J., Valet, M., Berthele, A. & Tolle, T. R. (2008). The runners’ high: opioidergic mechanisms in the human brain. Cerebral Cortex 18: 2523–31.
Broad, K. D., Curley, J. P. & Keverne, E. B. (2006). Mother–infant bonding and the evolution of mammalian social relationships. Philosophical Transactions of the Royal Society, London 361B: 2199–214.
Carter, C. S., DeVries, A. C. & Getz, L. L. (1995). Physiological substrates of mammalian monogamy: the prairie vole model. Neuroscience and Biobehavioral Reviews 16: 131–44.
Cohen, E., Ejsmond-Frey, R., Knight, N. & Dunbar, R. I. M. (2010). Rowers’ high: behavioural synchrony is correlated with elevated pain thresholds. Biology Letters 6: 106–8.
Colt, E. W. D., Wardlaw, S. L. & Frantz, A. G. (1981). The effects of running on plasma β-endorphin. Life Sciences 28: 1637–40.
Curly, J. P. & Keverne, E. B. (2005). Genes, brains and mammal social bonds. Trends in Ecology and Evolution 20: 561–7.
Depue, R. A. & Morrone-Strupinsky, J. V. (2005). A neurobehavioral model of affiliative bonding: implications for conceptualizing a human trait of affiliation. Behavioral and Brain Sciences 28: 313–95.
Ditzen, B., Hoppmann, C. & Klumb, P. (2008). Positive couple interactions and daily cortisol: on the stress-protecting role of intimacy. Psychosomatic Medicine 70: 883–9.
Domes, G., Heinrichs, M., Gläscher, J., Büchel, C., Braus, D. F. & Herpertz, S. C. (2007b). Oxytocin attenuates amygdala responses to emotional faces regardless of valence. Biological Psychiatry 62: 1187–90.
Domes, G., Heinrichs, M., Michel, A., Berger, C. & Herpertz, S. C. (2007a). Oxytocin improves ‘mind-reading’ in humans. Biological Psychiatry 61: 731–3.
Dunbar, R. I. M. (2010). The social role of touch in humans and primates: behavioural function and neurobiological mechanisms. Neuroscience and Biobehavioral Reviews 34: 260–8.
Dunbar, R. I. M., Baron, R., Frangou, A., Pearce, E., van Leeuwan, E., Stow, J., Partridge, G., MacDonald, I., Barra, V. & van Vugt, M. (2011). Social laughter is correlated with elevated pain thresholds. Proceedings of the Royal Society, London.
Fisher, H. E., Aron, A. & Brown, L. L. (2006). Romantic love: a mammalian brain system for mate choice. Philosophical Transactions of the Royal Society, London 361B: 2173–86.
Garver-Apgar, C. E., Gangestad, S. W., Thornhill, R., Miller, R. D. & Olp, J. J. (2006). Major histocompatibility complex alleles, sexual responsivity, and unfaithfulness in romantic couples. Psychological Science 17: 830–5.
Gustavson, A. R., Dawson, M. E. & Bonett, D. G. (1987). Androstenol, a putative human pheromone, affects human (Homo sapiens) male choice performance. Journal of Comparative Psychology 101: 210–12.
Harbach, H., Hell, K., Gramsch, C., Katz, N., Hempelmann, G. & Teschemacher H. (2000). β-endorphin (1-31) in the plasma of male volunteers undergoing physical exercise. Psychoneuroendo-crinology 25: 551–62.
Havlí;cek, J., Saxton, T. K., Roberts, S. C., Jozifkova, E., Lhota, S., Valentova, J. & Flegr, J. (2008). He sees, she smells? Male and female reports of sensory reliance in mate choice and non-mate choice contexts. Personality and Individual Differences 45: 565–70.
Hughes, S. M., Harrison, M. A. & Gallup, G. G. (2007). Sex differences in romantic kissing among college students: an evolutionary perspective. Evolutionary Psychology 5: 612–31.
Hurst, J. L., Payne, C. E., Nevison, C. M., Marie, A. D., Humphries, R. E., Robertson, D. H. L., Cavaggioni, A. & Beynon, R. J. (2001). Individual recognition in mice mediated by Major Urinary Proteins. Nature 414: 631–4.
Insel, T. R. & Shapiro, L. E. (1992). Oxytocin receptor distribution reflects social organisation in monogamous and polygamous voles. Proceedings of the National Academy of Sciences, USA 89: 5981–5.
Insel, T. R. & Young, L. J. (2000). Neuropeptides and the evolution of social behavior. Current Opinion in Neurobiology 10: 784–9.
Keverne, E. B., Martensz, N. & Tuite, B. (1989). Beta-endorphin concentrations in cerebrospinal fluid of monkeys are influenced by grooming relationships. Psychoneuroendocrinology 14: 155–61.
Kikusui, T., Winslo, J. T. & Mori, Y. (2006). Social buffering: relief from stress and anxiety. Philosophical Transactions of the Royal Society, London 361B: 2215–28.
Kosfeld, M., Heinrichs, M., Zak, P. J., Fischbacher, U. & Fehr, E. (2005). Oxytocin increases trust in humans. Nature 435: 673–6.
Light, K. C., Grewen, K. M. & Amico, J. A. (2005). More frequent partner hugs and higher oxytocin levels are linked to lower blood pressure and heart rate in premenopausal women. Biological Psychology 69: 5–21.
Lim, M. M., Wang, Z., Olazabal, D. E., Ren, X., Terwilliger, E. F. & Young, L. F. (2004). Enhanced partner preference in a promiscuous species by manipulating the expression of a single gene. Nature 429: 754–7.
Lundström, J. N. & Jones-Gotman, M. (2009). Romantic love modulates women’s identification of men’s body odors. Hormones and Behavior 55: 280–4.
Machin, A. & Dunbar, R. I. M. (2011). The brain opioid theory of social attachment: a review of the evidence. Behaviour 148: 985–1025.
Man, J. (2004). Genghis Khan: Life, Death and Resurrection. London: Bantam.
Master, S. L., Eisenberger, N. I., Taylor, S. E., Naliboff, B. D., Shirinyan, D. & Lieberman, M. D. (2009). A picture’s worth: partner photographs reduce experimentally induced pain. Psychological Science 20: 1316–18.
Miller, R. S. (1997). Inattentive and contented: relationship commitment and attention to alternatives. Journal of Personality and Social Psychology 73: 758–66.
Nelson, E. E. & Panksepp, J. (1998). Brain structures of infant–mother attachment: contributions of opioids, oxytocin, and norepinephrine. Neuroscience and Biobehavioral Reviews 22: 437–52.
Phelan, M. M., McLean, L., Simpson, D. M., Hurst, J. L., Beynon, R. J. & Lian, L. Y. (2010). 1H, 15N and 13C resonance assignment of darcin, a mouse major urinary protein. Biomolecular NMR Assignments 4: 239–41.
Porter, R. H. (1999). Olfaction and human kin recognition. Genetica 104: 259–63.
Saxton, T. K., Lyndon, A., Little, A. C. & Roberts, S. C. (2008). Evidence that androstadienone, a putative human chemosignal, modulates women’s attributions of men’s attractiveness. Hormones and Behavior 54: 597–601.
Stoddart, D. M. (1990). The Scented Ape: The Biology and Culture of Human Scent. Cambridge: Cambridge University Press.
Theodoridou, A., Rowe, A. C., Penton-Voak, I. S. & Rogers, P. J. (2009). Oxytocin and social perception: oxytocin increases perceived facial trustworthiness and attractiveness. Hormones and Behavior 56: 128–32.
Uvnäs-Moberg, K. (1998). Oxytocin may mediate the benefits of positive social interaction and emotions. Psychoneuroendocrinology 23: 819–35.
Uvnäs-Moberg, K. & Eriksson, M. (1996). Breastfeeding: physiological, endocrine and behavioural adaptations caused by oxytocin and local neurogenic activity in the nipple and the mammary gland. Acta Psychologica 85: 525–30.
Uvnäs-Moberg, K., Widström, A. M., Nissen, E. & Björnell, H. (1990). Personality traits in women 4 days post partum and their correlation with plasma levels of oxytocin and prolactin. Journal of Psychosomatic Obstetrics and Gynecology 11: 261–73.
Vlahovic, T. A., Roberts, S. B. & Dunbar, R. I. M. Effects of time and laughter on subjective happiness within different modalities of communication. Journal of Computer-Mediated Communication (in press).
Wedekind, C., Seebeck, T., Bettens, F. & Paepke, A. J. (1995). MHC-dependent mate preferences in humans. Proceedings of the Royal Society, London 260B: 245–9.
Yamakazi, K., Beauchamp, G. K., Curran, M., Bard, J. & Boyse, E. A. (2000). Parent–progeny recognition as a function of MHC odor type identity. Proceedings of the National Academy of Sciences, USA 97: 10500–2.
Zillmann, D., Rockwell, S., Schweitzer, K. & Sundar, S. S. (1993). Does humour facilitate coping with physical discomfort? Motivation and Emotion 17: 1–21.
Astington, J. W. (1993). The Child’s Discovery of the Mind. Cambridge (MA): Cambridge University Press.
Bartels, A. & Zeki, S. (2000). The neural basis of romantic love. NeuroReport 11: 3829–34.
Bartels, A. & Zeki, S. (2004). The neural correlates of maternal and romantic love. NeuroImage 24: 1155–66.
Dunbar, R. I. M. (1998). The social brain hypothesis. Evolutionary Anthropology 6: 178–90.
Dunbar, R. I. M. & Shultz, S. (2007). Understanding primate brain evolution. Philosophical Transactions of the Royal Society, London 362B: 649–58.
Finlay, B. L. & Darlington, R. B. (1995). Linked regularities in the development and evolution of mammalian brains. Science 268: 1578–84.
Frith, C. D. & Frith, U. (1999). Interacting minds – a biological basis. Science 286: 1692–5.
Gallagher, H. L. & Frith, C. D. (2003). Functional imaging of ‘theory of mind’. Trends in Cognitive Science 7: 77–83.
Kendrick, K. M., Da Costa, A. P., Broad, K. D., Ohkura, S., Guevara, R., Lévy, F. & Keverne, E. B. (1997). Neural control of maternal behaviour and olfactory recognition of offspring. Brain Research Bulletin 44: 383–95.
Kinderman, P., Dunbar, R. I. M. & Bentall, R. P. (1998). Theory-of-mind deficits and causal attributions. British Journal of Psychology 89: 191–204.
Lewis, P. A., Rezaie, R., Browne, R., Roberts, N. & Dunbar, R. I. M. (2011). Ventromedial prefrontal volume predicts both understanding of others and social network size. NeuroImage 57: 1624–9.
Lindenfors, P. (2005). Neocortex evolution in primates: The ‘social brain’ is for females. Biology Letters 1: 407–10.
Miller, G. (2000). The Mating Mind: How Sexual Choice Shaped the Evolution of Human Nature. London: Random House.
Pérez-Barbería, J., Shultz, S. & Dunbar, R. I. M. (2007). Evidence for intense coevolution of sociality and brain size in three orders of mammals. Evolution 61: 2811–21.
Powell, J., Lewis, P. A., Dunbar, R. I. M., García-Fiñana, M. & Roberts, N. (2010). Orbital prefrontal cortex volume correlates with social cognitive competence. Neuropsychologia 48: 3554–62.
Powell, J., Lewis, P. A., Roberts, N., Garcia-Fiñana, M. & Dunbar, R. I. M. (2011). Orbital prefrontal cortex volume predicts social network size: an imaging study of individual differences in humans (submitted).
Ratiu, P. & Talos, I.-F. (2004). The tale of Phineas Gage, digitally remastered. New England Journal of Medicine 351: e21.
Reader, S. M. & Laland, K. N. (2002). Social intelligence, innovation, and enhanced brain size in primates. Proceedings of the National Academy of Sciences, USA 99: 4436–41.
Saxe, R., Carey, S. & Kanwisher, N. (2004). Understanding other minds: linking developmental psychology and functional neuroimaging. Annual Review of Psychology 55: 87–124.
Shultz, S., Bradbury, R., Evans, K., Gregory, R. & Blackburn, T. (2005). Brain size and resource specialisation predict long-term population trends in British birds. Proceedings of the Royal Society, London 272B: 2305–11.
Shultz, S. & Dunbar, R. I. M. (2007). The evolution of the social brain: anthropoid primates contrast with other vertebrates. Proceedings of the Royal Society, London 274B: 2429–36.
Shultz, S. & Dunbar, R. I. M. (2010). Encephalisation is not a universal macroevolutionary phenomenon in mammals but is associated with sociality. Proceedings of the National Academy of Sciences, USA 107: 21582–6.
Shultz, S. & Dunbar, R. I. M. (2010). Social bonds in birds are associated with brain size and contingent on the correlated evolution of life-history and increased parental investment. Biological Journal of the Linnean Society 100: 111–23.
Sol, D., Lefebvre, L. & Rodriguez-Teijeiro, D. J. (2005). Brain size, innovative propensity and migratory behaviour in temperate Palaearctic birds. Proceedings of the Royal Society, London 272B: 1433–41.
Stiller, J. & Dunbar, R. I. M. (2007). Perspective-taking and memory capacity predict social network size. Social Networks 29: 93–104.
Wimmer, H. & Perner, J. (1983). Beliefs about beliefs: representation and constraining function of wrong beliefs in young children’s understanding of deception. Cognition 13: 103–28.
Borgerhoff Mulder, M. (1989). Reproductive success in three Kipsigis cohorts. In T. H. Clutton-Brock (ed.), Reproductive Success, 419–38. Chicago: University of Chicago Press.
Borgerhoff Mulder, M. (1990). Kipsigis women’s preferences for wealthy men: evidence for female choice in mammals? Behavioral Ecology and Sociobiology, 27: 255–64.
Buss, D. M. (1989). Sex differences in human mate preferences. Behavioral and Brain Sciences 12: 1–49.
Cashdan, E. (1996). Women’s mating strategies. Evolutionary Anthropology 5: 134–43.
www.childstats.gov/americaschildren/tables/phy7b.asp
Grammer, K. (1989). Human courtship behaviour: biological basis and cognitive processing. In A. E. Rasa, C. Vogel and E. Voland (eds), The Sociobiology of Sexual and Reproductive Strategies, 147–69. London: Chapman and Hall.
Hawkes, K. (1991). Showing off: tests of another hypothesis about men’s foraging goals. Ethology and Sociobiology 11: 29–54.
Hewlett, B. S. (1988). Sexual selection and paternal investment among Aka Pygmies. In L. Betzig, M. Borgerhoff-Mulder and P. Turke (eds), Human Reproductive Behaviour: A Darwinian Perspective, 263–75. Cambridge: Cambridge University Press.
Hill, K. & Kaplan, H. (1988). Trade-offs in male and female reproductive strategies among the Ache. In L. Betzig, M. Borgerhof-Mulder and P. Turke (eds), Human Reproductive Behaviour: A Darwinian Perspective, 277–305. Cambridge: Cambridge University Press.
Iredale, W., van Vugt, M. & Dunbar, R. I. M. (2008). Showing off in humans: male generosity as a mating signal. Evolutionary Psychology 6: 386–92.
Kelly, S. & Dunbar, R. I. M. (2001) Who dares wins: heroism versus altruism in female mate choice. Human Nature 12: 89–105.
Kenrick, D. T. & Keefe, R. C. (1992). Age preferences in mates reflect sex differences in human reproductive strategies. Behavioral and Brain Sciences 15: 75–133.
Kruger, D. J. & Nesse, R. M. (2004). Sexual selection and the male: female mortality ratio. Evolutionary Psychology 2: 66–85.
Li, N. P., Griskevicius, V., Durante, K. M., Jonason, P. K., Pasisz, D. J. & Aumer, K. (2009). An evolutionary perspective on humor: sexual selection or interest indication? Personality and Social Psychology Bulletin 35: 923.
Lycett, J. & Dunbar, R. I. M. (2000). Abortion rates reflect the optimization of parental investment strategies. Proceedings of the Royal Society, London 266B: 2355–8.
Orians, G. H. (1969). On the evolution of mating systems in birds and mammals. American Naturalist 103: 589–603.
Pawłowski, B., Atwal, R. & Dunbar, R. I. M. (2007). Gender differences in everyday risk-taking. Evolutionary Psychology 6: 29–42.
Pawłowski, B. & Dunbar, R. I. M. (1999a). Withholding age as putative deception in mate search tactics. Evolution and Human Behavior 20: 53–69.
Pawłowski, B. & Dunbar, R. I. M. (1999b). Impact of market value on human mate choice decisions. Proceedings of the Royal Society, London 266B: 281–5.
Pearce, H. E. (1982). A Sociological Study of Dating Agencies and ‘Lonely Hearts’ Columns. PhD thesis, University of London.
Pennebaker, J. W., Dyer, M. A., Caulkins, R. S., Litowitz, D. L., Ack-reman, P. L., Anderson, D. B. & McGraw, K. M. (1979). Don’t the girls get prettier at closing time: a country and western application to psychology. Personality and Social Psychology Bulletin 5: 122–5.
Ronay, R. & von Hippel, W. (2010). The presence of an attractive woman elevates testosterone and physical risk taking in young men. Social Psychological and Personality Science 1: 57–64.
Schmitt, D. P., and 118 others (2003). Universal sex differences in the desire for sexual variety: tests from 52 nations, 6 continents, and 13 islands. Journal of Personality and Social Psychology 85: 85–104.
Shackelford, T. K., Schmitt, D. P. & Buss, D. M. (2005). Universal dimensions of human mate preferences. Personality and Individual Differences 39: 447–58.
Stone, E. A., Shackleford, T. K. & Buss, D. M. (2007). Sex ratio and mate preferences: a cross-cultural investigation. European Journal of Social Psychology 37: 288–96.
Voland, E. (1988). Differential infant and child mortality in evolutionary perspective: data from 17th to 19th century Ostfriesland (Germany). In L. Betzig, M. Borgerhoff-Mulder and P. W. Turke (eds), Human Reproductive Behaviour: A Darwinian Perspective, 253–62. Cambridge: Cambridge University Press.
Voland, E. (1989). Differential parental investment: some ideas on the contact area of European social history and evolutionary biology.
In V. Standen and R. A. Foley (eds), Comparative Socioecology: the Behavioural Ecology of Humans and Other Mammals, 391–403. Oxford: Blackwell.
Voland, E. & Engel, C. (1990). Female choice in humans: a conditional mate selection strategy of the Krummhörn women (Germany 1720–1874). Ethology 84: 144–54.
Waynforth, D. & Dunbar, R. I. M. (1995). Conditional mate choice strategies in humans: evidence from ‘lonely hearts’ advertisements. Behaviour 132: 755–79.
Anderson, J. L., Crawford, C. B., Nadeau, J. & Lindberg, T. (1992). Was the Duchess of Windsor right? A cross-cultural study of the socioecology of ideals of female body shape. Ethology and Sociobiology 13: 197–227.
Arden, R., Gottfredson, L. S., Miller, G. & Pierce, A. (2009). Intelligence and semen quality are positively correlated. Intelligence 37: 277–82.
Bates, T. C. (2007). Fluctuating asymmetry and intelligence. Intelligence 35: 41–6.
Bereczkei, T., Gyuris, P. & Weisfeld, G. E. (2004). Sexual imprinting in human mate choice. Proceedings of the Royal Society, London 271: 1129–34.
Björntorp, P. (1991). Adipose tissue distribution and function. International Journal of Obesity 15: 67–81.
Borodulin, K. (2002). Physical activity, fitness, abdominal obesity, and cardiovascular risk factors in Finnish men and women: the national FINRISK 2002 study. PhD thesis, Helsinki University.
Brown, W. M., Cronk, L., Grochow, K., Jacobson, A., Liu, C. K., Popovi, Z. & Trivers, R. (2005). Dance reveals symmetry especially in young men. Nature 438: 1148–50.
Coetzee, V., Perrett, D. I. & Stephen, I. D. (2009). Facial adiposity: a cue to health? Perception 38: 1700–11.
Daly, M. & Wilson, M. (1982). Whom are newborn babies said to resemble? Ethology and Sociobiology 3: 69–78.
Frisch, R. (1978). Population, food intake and fertility. Science 199: 22–30.
Gangestad, S. W. & Simpson, J. A. (2000). The evolution of human mating: trade-offs and strategic pluralism. Behavioral and Brain Sciences 23: 573–644.
Gangestad, S. W. & Thornhill, R. A. (1997). The evolutionary psychology of extrapair sex: the role of fluctuating asymmetry. Evolution and Human Behavior 18: 69–88.
Gangestad, S. W., Thornhill, R. & Yeo, R. A. (1994). Facial attractiveness, developmental stability, and fluctuating asymmetry. Ethology and Sociobiology 15: 73–85.
Grammer, K., Kruck, K., Juette, A. & Fink, B. (2000). Non-verbal behaviour as courtship signals: the role of control and choice in selecting partners. Evolution and Human Behaviour 21: 371–90.
Grammer, K. & Renninger, L. (2004). Disco clothing, female sexual motivation and relationship status: is she dressed to impress? Journal of Sex Research 41: 66–74.
Jasienska, G., Ziomkiewicz, A., Ellison, P. T., Lipson, S. F. & Thune, I. (2004). Large breasts and narrow waists indicate high reproductive potential in women. Proceedings of the Royal Society, London 271B: 1213–17.
Jones, D. (1995). Sexual selection, physical attractiveness, and facial neoteny. Current Anthropology 35: 723–48.
Kalick, S. M., Zebrowitz, L. A., Langlois, J. H. & Johnson, R. M. (1998). Does human facial attractiveness honestly advertise health? Longitudinal data on an evolutionary question. Psychological Science 9: 8–13.
Karremans, J. C., Verwijmeren, T., Pronk, T. M. & Reitsma, M. (2009). Interacting with women can impair men’s cognitive functioning. Journal of Experimental Social Psychology 45: 1041–4.
Kenrick, D., Gutierres, S. & Goldberg, L. (1989). Influence of popular erotica on judgments of strangers and mates. Journal of Experimental Social Psychology 25: 159–67.
Kenrick, D., Montello, D., Gutierres, S. & Trost, M. (1993). Effects of physical attractiveness on affect and perceptual judgments: when social comparison overrides social reinforcement. Personality and Social Psychology Bulletin 19: 195–9.
Lassek, W. D. & Gaulin, S. J. C. (2008). Waist–hip ratio and cognitive ability: is gluteofemoral fat a privileged store of neurodevelopmental resources? Evolution and Human Behavior 29: 26–34.
Little, A. C., Penton-Voak, I. S., Burt, D. M. & Perrett, D. I. (2003). Investigating an imprinting-like phenomenon in humans: partners and opposite-sex parents have similar hair and eye colour. Evolution and Human Behavior 24: 43–51.
Manning, J. T., Scutt, D., Whitehouse, G. H. & Leinster, S. J. (1997). Breast asymmetry and phenotypic quality in women. Evolution and Human Behavior 18: 1–13.
Mueller, U. & Mazur, A. (2001). Evidence of unconstrained directional selection for male tallness. Behavioral Ecology and Sociobiology 50: 302–11.
Mueller, U. & Mazur, A. (1997). Facial dominance in Homo sapiens as honest signaling of male quality. Behavioral Ecology 8: 569–79.
Mueller, U. & Mazur, A. (1998). Reproductive constraints on dominance competition in male Homo sapiens. Evolution and Human Behavior 19: 387–96.
Nettle, D. (2002). Height and reproductive success in a cohort of British men. Human Nature 13: 473–91.
Nettle, D. (2002). Women’s height, reproductive success and the evolution of sexual dimorphism in modern humans. Proceedings of the Royal Society, London 269B: 1919–23.
Pawłowski, B. & Dunbar, R. I. M. (2006). Waist-to-hip ratio versus Body Mass Index as predictors of fitness in women. Human Nature 16: 50–63.
Pawłowski, B., Dunbar, R. I. M. & Lipowicz, A. (2000). Tall men have more reproductive success. Nature 403: 156.
Penton-Voak, I. S., Jones, B. C., Little, A. C., Baker, S., Tiddeman, B., Burt, D. M. & Perrett, D. I. (2001). Symmetry, sexual dimorphism in facial proportions and male facial attractiveness. Proceedings of the Royal Society, London 268B: 1617–23.
Perrett, D. I., May, K. A. & Yoshikawa, S. (1994) Facial shape and judgements of female attractiveness. Nature 368: 239–42.
Perrett, D. I., Lee, K. J., Penton-Voak, I. S., Rowland, D. R., Yoshikawa, S., Burt, D. M., Henzi, S. P., Castles, D. L. & Akamatsu, S. (1998). Effects of sexual dimorphism on facial attractiveness. Nature 394: 884–7.
Perrett, D. I., Penton-Voak, I. S., Little, A. C., Tiddeman, B. P., Burt, D. M., Schmidt, N., Oxley, R., Kinloch, N. & Barrett, L. (2002). Facial attractiveness judgments reflect learning of parental age characteristics. Proceedings of the Royal Society, London 269B: 873–80.
Platek, S. M., Critton, S. R., Burch, R. L., Frederick, D. A., Myers, T. E., Gallup, G. G. (2003). How much paternal resemblance is enough? Sex differences in hypothetical investment decisions but not in the detection of resemblance. Evolution and Human Behavior 24: 81–7.
Platek, S. M., Keenan, J. P. & Mohamed, F. B. (2005). Sex differences in the neural correlates of child facial resemblance: an event-related fMRI study. NeuroImage 25: 1336–44.
Pollet, T. & Nettle, D. (2008). Taller women do better in a stressed environment: height and reproductive success in rural Guatemalan women. American Journal of Human Biology 20: 264–9.
Roberts, S. C. & Little, A. C. (2008). Good genes, complementary genes and human mate choice. Genetica 132: 309–21.
Scheib, J. E., Gangestad, S. W. & Thornhill, R. (1999). Facial attractiveness, symmetry, and cues to good genes. Proceedings of the Royal Society, London 266B: 1913–17.
Shepherd, J. A. & Strathman, A. J. (1989). Attractiveness and height: the role of stature in dating preference, frequency of dating and perceptions of attractiveness. Personality and Social Psychology Bulletin 15: 617–27.
Singh, D. (1993). Adaptive significance of female physical attractiveness: role of waist-to-hip ratio. Journal of Personality and Social Psychology 65: 293–307.
Singh, D. (1995). Female health, attractiveness and desirability for relationships: role of breast asymmetry and waist-to-hip ratio. Ethology and Sociobiology 16: 465–81.
Singh, D., Dixson, B. J., Jessop, T. S., Morgan, B. & Dixson, A. F. (2010). Cross-cultural consensus for waist–hip ratio and women’s attractiveness. Evolution and Human Behavior 31: 176–81.
Singh, D. & Luis, S. (1995). Ethnic and gender consensus for the effect of waist-to-hip ratio on judgment of women’s attractiveness. Human Nature 6: 55–66.
Thornhill, R. & Gangestad, S. W. (1996). The evolution of human sexuality. Trends in Ecology and Evolution 11: 98–102.
Thornhill, R. A. & Gangestad, S. W. (1999). The scent of symmetry: a human sex pheromone that signals fitness? Evolution and Human Behavior 20: 175–201.
Thornhill, R. A. & Grammer, K. (1999). The body and face of woman: one ornament that signals quality? Evolution and Human Behavior 20: 105–20.
Watson, C. D., DeBruine, L. M., Smith, F. G., Jones, B. C., Vukovic, J. & Fraccaro, P. J. (2011). Like father, like self: emotional closeness to father predicts women’s preferences for self-resemblance in opposite-sex faces. Evolution and Human Behaviour 32: 70–5.
Wetsman, A. & Marlowe, F. (1999). How universal are preferences for female waist-to-hip ratios? Evidence from the Hadza of Tanzania. Evolution and Human Behaviour 20: 219–28.
Wingard, D. L., Berkman, L. F. & Brand, R. J. (1982). A multivariate analysis of health-related practices in a nine-year mortality follow-up of the Alameda county study. American Journal of Epidemiology 116: 765–75.
Zahavi, A. and Zahavi, A. (1997). The Handicap Principle: A Missing Part of Darwin’s Puzzle. Oxford: Oxford University Press.
Bateson, M., Nettle, D. & Roberts, G. (2006). Cues of being watched enhance cooperation in a real-world setting. Biology Letters 2: 412–14.
Benenson, J. F. & Christakos, A. (2003). The greater fragility of females’ versus males’ closest same-sex friendships. Child Development 74: 1123–9.
Berkman, L. & Glass, T. (2000). Social integration, social networks, social supports and health. In L. Berkman & I. Kawachi (eds), Social Epidemiology, 137–73. New York: Oxford University Press.
Boone, J. L. (1986). Parental investment and elite family structure in preindustrial states: a case study of late medieval–early modern Portuguese genealogies. American Anthropologist 88: 859–78.
Brooks, R. (1998). The importance of mate copying and cultural inheritance of mating preferences. Trends in Ecology and Evolution 13: 45–6.
Christakis, N. A. & Fowler, J. H. (2009). Connected: The Surprising Power of Our Social Networks and How They Shape Our Lives. New York: Little, Brown.
Cohen, S. (2005). The Pittsburgh common cold studies: psychosocial predictors of susceptibility to respiratory infectious illness. International Journal of Behavioral Medicine 12: 123–31.
Crook, J. H. & Crook, S. J. (1988). Tibetan polyandry: problems of adaptation and fitness. In L. Betzig, M. Borgerhoff-Mulder and P. Turke (eds), Human Reproductive Behaviour: A Darwinian Perspective, 97–114. Cambridge: Cambridge University Press.
Curry, O. & Dunbar, R. I. M. (2011a). Altruism in social networks: evidence for a ‘kin premium’. British Journal of Psychology (revised and resubmitted).
Curry, O. & Dunbar, R. I. M. (2011b). Altruism in networks: the effect of connections. Biology Letters Oct 23;7(5):651–3.
Curry, O. & Dunbar, R. I. M. (2011c). Why birds of a feather flock together? The effects of similarity on altruism in a social network. Social Networks (submitted).
DeBruine, L. M. (2005). Trustworthy but not lust-worthy: contextspecific effects of facial resemblance. Proceedings of the Royal Society, London 272B: 919–22.
Ernest-Jones, M., Nettle, D. & Bateson, M. (2010). Effects of eye images on everyday cooperative behaviour: a field experiment. Evolution and Human Behavior 32: 172–8.
Flinn, M. V. & England, B. (1995). Childhood stress and family environment. Current Anthropology 36: 854–66.
Garver-Apgar, C. E., Gangestad, S. W., Thornhill, R., Miller, R. D. & Olp, J. J. (2006). Major histocompatibility complex alleles, sexual responsivity, and unfaithfulness in romantic couples. Psychological Science 17: 830–5.
Helgason, A., Pálsson, S., Guðbjartsson, D. F., Kristjánsson, Þ. & Stefánsson, K. (2008). An association between the kinship and fertility of human couples. Science 319: 813–16.
Jedlicka, D. (1980). A test of the psychoanalytic theory of mate selection. Journal of Social Psychology 112: 295–9.
Kiecolt-Glazer, J. K., Loving, T. J., Stowell, J. R., Malarkey, W. B., Lemeshow, S., Dickinson, S. L. & Glaser, R. (2005). Hostile marital interactions, proinflammatory cytokine production, and wound healing. Archives of General Psychiatry 62: 1377–84.
McPherson, M., Smith-Lovin, L. & Cook, J. M. (2001). Birds of a feather: homophily in social networks. Annual Review of Sociology 27: 415–44.
Madsen, E., Tunney, R., Fieldman, G., Plotkin, H., Dunbar, R. I. M., Richardson, J. & McFarland, D. J. (2007). Altruism and kinship: a cross-cultural experimental study. British Journal of Psychology 98: 339–59.
Maner, J. K., Rouby, D. A. & Gonzaga, G. C. (2008). Automatic inattention to attractive alternatives: the evolved psychology of relationship maintenance. Evolution and Human Behavior 29: 343–9.
Place, S. S., Todd, P. M., Penke, L. & Asendorpf, J. B. (2010). Humans show mate copying after observing real mate choices. Evolution and Human Behavior 31: 320–5.
Roberts, S. B. G. & Dunbar, R. I. M. (2011a). Communication in social networks: effects of kinship, network size and emotional closeness. Personal Relationships 18: 439–52.
Roberts, S. B. G. & Dunbar, R. I. M. (2011b). The costs of family and friends: an 18-month longitudinal study of relationship maintenance and decay. Evolution and Human Behavior 32: 186–97.
Roberts, S., Dunbar, R. I. M., Pollet, T. & Kuppens, T. (2009). Exploring variations in active network size: constraints and ego characteristics. Social Networks 31: 138–46.
Silk, J. B. (1990). Which humans adopt adaptively and why does it matter? Ethology and Sociobiology 11: 425–6.
Stansfeld, S. A. (2006). Social support and social cohesion. In M. Marmot & R. G. Wilkinson (eds), Social Determinants of Health, 148–71. Oxford: Oxford University Press.
Sutcliffe, A. J., Dunbar, R. I. M., Binder, J. & Arrow, H. (2011). Relationships and the social brain: integrating psychological and evolutionary perspectives. British Journal of Psychology 103(2): 149–68.
Uller, T. & Johansson, L. C. (2003). Human mate choice and the wedding ring effect: are married men more attractive? Human Nature 14: 267–76.
Vigil, J. M. (2007). Asymmetries in the friendship preferences and social styles of men and women. Human Nature 18: 143–61.
Voland, E. (1989). Differential parental investment: some ideas on the contact area of European social history and evolutionary biology. In V. Standen and R. A. Foley (eds), Comparative Socioecology: the Behavioural Ecology of Humans and Other Mammals, 391–403. Oxford: Blackwell.
Voland, E. & Dunbar, R. I. M. (1995). Resource competition and reproduction: the relationship between economic and parental strategies in the Krummhörn population. Human Nature 6: 33–49.
Westermarck, E. A. (1891). The History of Human Marriage. New York: Macmillan.
Wolf, A. P. (1995). Sexual Attraction and Childhood Association: A Chinese Brief for Edward Westermarck. Stanford: Stanford University Press.
Anderson, K. J. (2006). How well does paternity confidence match actual paternity? Evidence from worldwide nonpaternity rates. Current Anthropology 47: 513–20.
Barrett, L., Dunbar, R. I. M. & Lycett, J. E. (2002). Human Evolutionary Psychology. Basingstoke: Macmillan/Palgrave. (For Viking berserkers, see p. 262.)
Blair, R. J. R., Jones, L., Clark, F. & Smith, M. (1997). The psychopathic individual: a lack of responsiveness to distress cues? Psychophysiology 34: 192–8.
Brown, P. J. (1986). Cultural and genetic adaptations to malaria: Problems of comparison. Human Ecology 14: 311–32.
Brown, W. M. & Moore, C. (2003). Fluctuating asymmetry and romantic jealousy. Ethology and Human Behavior 24: 113–17.
Brüne, M. (2001). De Clérambault’s syndrome (erotomania) in an evolutionary perspective. Evolution and Human Behavior 22: 409–15.
Brüne, M. (2003). Erotomanic stalking in evolutionary perspective. Behavioral Sciences and the Law 21: 83–8.
Campbell, A. (2002). A Mind of Her Own: The Evolutionary Psychology of Women. Oxford: Oxford University Press.
Daly, M. & Wilson, M. (1988). Homicide. New York: Aldine de Gruyter.
Daly, M., Wilson, M. & Weghorst, S. (1982). Male sexual jealousy. Ethology and Sociobiology 3: 11–27.
DeBruine, L. M. (2005). Trustworthy but not lust-worthy: contextspecific effects of facial resemblance. Proceedings of the Royal Society, London 272B: 919–22.
de Quervain, D. J.-F., Fischbacher, U., Treyer, V., Schellhammer, M., Schnyder, U., Buck, A. & Fehr, E. (2004). The neural basis of altruistic punishment. Science 305: 1254–8.
Dickemann, M. (1979). Female infanticide, reproductive strategies, and social stratification: a preliminary model. In N. A. Chagnon and W. Irons (eds), Evolutionary Biology and Human Social Behaviour, 321–67. North Scituate (MA): Duxbury Press.
Dunbar, R. I. M. (1993). On the evolution of alternative reproductive strategies. Behavioral and Brain Sciences 16: 291.
Dunbar, R. I. M. (1991). Sociobiological theory and the Cheyenne case. Current Anthropology 32: 169–73.
Dunbar, R. I. M., Clark, A. & Hurst, N. L. (1995). Conflict and cooperation among the Vikings: contingent behavioural decisions. Ethology and Sociobiology 16: 233–46.
Eisenberger, N. & Lieberman, M. (2004). Why rejection hurts: a common neural alarm system for physical and social pain. Trends in Cognitive Sciences 8: 294–300.
Eisenberger, N. I., Lieberman, M. D. & Williams, K. D. (2003). Does rejection hurt: an fMRI study of social exclusion. Science 302: 290–2.
Eslinger, P. J. & Damasio, A. R. (1985). Severe disturbance of higher cognition after bilateral frontal lobe ablation: patient EVR. Neurology 35: 1731–41.
Gangestad, S. W. & Simpson, J. A. (2000). The evolution of human mating: trade-offs and strategic pluralism. Behavioral and Brain Sciences 23: 573–644.
Gangestad, S. W. & Thornhill, R. A. (1997). The evolutionary psychology of extrapair sex: the role of fluctuating asymmetry. Evolution and Human Behavior 18: 69–88.
Garver-Apgar, C. E. Gangestad, S. W., Thornhill, R., Miller, R. D. & Olp, J. J. (2006). Major histocompatibility complex alleles, sexual responsivity, and unfaithfulness in romantic couples. Psychological Science 17: 830–5.
Gordon, H. L., Baird, A. A. & End, A. (2004). Functional differences among those high and low on a trait measure of psychopathy. Biological Psychiatry 56: 516–21.
Hornak, J., Rolls, E. T. & Wade, D (1996). Face and voice expression identification in patients with emotional and behavioural changes following ventral frontal lobe damage. Neuropsychologia 34: 247–61.
Kenrick, D. T., Neuberg, S. L., Zierk, K. L. & Krones, J. M. (1994). Evolution and social cognition: contrast effects as a function of sex, dominance, and physical attractiveness. Personality and Social Psychology Bulletin 20: 210–17.
Lycett, J. E., Dunbar, R. I. M. & Voland, E. (2000). Longevity and the costs of reproduction in a historical human population. Proceedings of the Royal Society, London 267B: 31–5.
Marlowe, F. (2000). Paternal investment and the human mating system. Behavioural Processes 51: 45–61.
Meggitt, M. (1962). Desert People: Study of the Walbiri Aborigines of Central Australia. Sydney: Angus & Robertson.
Mehu, M., Grammer, K. & Dunbar, R. I. M. (2007). Smiles when sharing. Evolution and Human Behavior 6: 415–22.
Mehu, M., Little, A. C. & Dunbar, R. I. M. (2007). Duchenne smiles and the perception of generosity and sociability in faces. Journal of Evolutionary Psychology 7: 183–96.
Mueller, U. & Mazur, A. (2001). Evidence of unconstrained directional selection for male tallness. Behavioral Ecology and Sociobiology 50: 302–11.
Murray, S. L., Griffin, D. W., Derrick, J. L., Harris, B., Aloni, M. & Leder, S. (2011). Tempting fate or inviting happiness? Unrealistic idealization prevents the decline of marital satisfaction. Psychological Science 22: 619–26.
Pérusse, D. (1993). Cultural and reproductive success in industrial societies: Testing the relationship at the proximate and ultimate levels. Behavioral and Brain Sciences 16: 267–322.
Seymour, B., Singer, T. & Dolan, R. (2007). The neurobiology of punishment. Nature Neuroscience Reviews 8: 300–11.
Simpson, J. A., Gangestad, S. W., Christensen, P. N. & Leck, K. (1999). Fluctuating asymmetry, sociosexuality, and intrasexual competitive tactics. Journal of Personality and Social Psychology 76: 159–72.
Singer, T., Seymour, B., O’Doherty, J. P., Stephan, K. E., Dolan, R. J. & Frith, C. D. (2006). Empathic neural responses are modulated by the perceived fairness of others. Nature 439: 466–9.
South, S. C., Trent, K. & Shen, Y. (2001). Changing partners: toward a macrostructural-opportunity theory of marital dissolution. Journal of Marriage and Family 63: 743–54.
Stillman, T. F., Maner, J. K & Baumeister, R. F. (2010). A thin slice of violence: distinguishing violent from nonviolent sex offenders at a glance. Evolution and Human Behavior 31: 298–303.
Theodoridou, A., Rowe, A. C., Penton-Voak, I. S. & Rogers, P. J. (2009). Oxytocin and social perception: Oxytocin increases perceived facial trustworthiness and attractiveness. Hormones and Behavior 56: 128–32.
van Wingen, G., Mattern, C., Verkes, R. J., Buitelaar, J. & Fernández, G. (2010). Testosterone reduces amygdala-orbitofrontal cortex coupling. Psychoneuroendocrinology 35: 105–13.
van ’t Wout, M. & Sanfey, A. G. (2008). Friend or foe: The effect of implicit trustworthiness judgments in social decision-making. Cognition 108: 796–803.
Walum, H., Westberg, L., Henningsson, S., Neiderhiser, J. M., Reiss, D., Igl, W., Ganiban, J. M., Spotts, E. M., Pedersen, N. L., Eriksson, E. & Lichtenstein, P. (2008). Genetic variation in the vasopressin receptor 1a gene (AVPR1A) associates with pair-bonding behavior in humans. Proceedings of the National Academy of Sciences, USA 105: 14153–6.
Way, B. M., Taylor, S. E. & Eisenberger, N. I. (2009). Variation in the μ-opioid receptor gene (OPRM1) is associated with dispositional and neural sensitivity to social rejection. Proceedings of the National Academy of Sciences, USA 106: 15079–84.
Wilson, M. & Daly, M. (1998). Lethal and nonlethal violence against wives and the evolutionary psychology of male sexual proprietariness. In R. E. Dobash & R. P. Dobash (eds), Rethinking violence against women, 199–230. Thousand Oaks, CA: Sage.
Winston, J. S., Strange, B. S., O’Doherty, J. & Dolan, R. J. (2002). Automatic and intentional brain responses during evaluation of trustworthiness of faces. Nature Neuroscience 5: 277–83.
Yalman, N. (1963). On the purity of women in the castes of Ceylon and Malabar. Journal of the Royal Anthropological Institute 93: 25–38.
Zubieta, J.-K., Dannals, R. F. & Frost, J. J. (1999). Gender and age influences on human brain muopioid receptor binding measured by PET. American Journal of Psychiatry 156: 842–8.
Zubieta, J.-K., Ketter, T. A., Bueller, J. A., Xu, Y., Kilbourn, M. R., Young, E. A. & Koeppe, R. A. (2003). Regulation of human affective responses by anterior cingulate and limbic μ-opioid neurotransmission. Archives of General Psychiatry 60: 1145–53.
Zubieta, J.-K., Smith, Y. R., Bueller, J. A., Xu, Y., Kilbourn, M. R., Jewett, D. M., Meyer, C. R., Koeppe, R. A., Stohler, C. S. (2002). μ-opioid receptor-mediated antinociception differs in men and women. Journal of Neuroscience 22: 5100–7.
Beit-Hallahmi, B. & Argyle, M. (1997). The Psychology of Religious Behaviour, Belief and Experience. London: Routledge.
Brüne M. (2001). De Clérambault’s syndrome (erotomania) in an evolutionary perspective. Evolution and Human Behavior 22: 409–15.
Brüne, M. (2003). Erotomanic stalking in evolutionary perspective. Behavioral Sciences and the Law 21: 83–8.
Cohn., N. (1970). The Pursuit of the Millennium: Revolutionary Millenarians and Mystical Anarchists of the Middle Ages. Oxford: Oxford University Press.
d’Aquili, E. & Newberg, A. (1999). The Mystical Mind: Probing the Biology of Religion. Minneapolis: Fortress Press.
Deedy, D., Law Smith, M., Kent, J., & Dunbar, R. I. M. (2006). Is priesthood an adaptive strategy? Evidence from a historical Irish population. Human Nature 17: 393–404.
Kapogiannis, D., Barbey, A., Su, M., Zamboni, G., Krueger, F. & Grafman, J. (2009). Cognitive and neural foundations of religious belief. Proceedings of the National Academy of Sciences, USA 106: 4871–81.
Kring, A. M. & Gordon, A. H. (1998). Sex differences in emotion: expression, experience and physiology. Journal of Personality and Social Psychology 74: 686–703.
Muncy, R. L. (1973). Sex and Marriage in Utopian Communities: 19th Century America. Bloomington: Indiana University Press.
Newberg, A., d’Aquili, E. & Rause, V. (2001). Why God Won’t Go Away. New York: Ballantine Books.
St Thérèse of Lisieux. (1951). The Story of a Soul. London: Burns Oates.
Todd, P. M. & Miller, G. F. (1999). From Pride to Prejudice to Persuasion: satisficing in mate search. In G. Gigerenzer & P. Todd (eds), Simple Heuristics That Make Us Smart, 287–308. Oxford: Oxford University Press.
van Vugt, M. & Ahuja, A. (2010). Selected: Why Some People Lead, Why Others Follow, and Why It Matters. London: Profile Books.
Wager, T. D., Luan Phan, K., Liberzon, I. & Taylor, S. F. (2003). Valence, gender, and lateralization of functional brain anatomy in emotion: a meta-analysis of findings from neuroimaging. NeuroImage 19: 513–31.
Wilson, C., Wilson, D. & Wilson, R. (1992). Cults and Fanatics. London: Magpie Books.
Bargh, J. A. & McKenna, K. Y. A. (2004). The internet and social life. Annual Review of Psychology 55: 573–90.
Deeley, Q., Daly, E., Asuma, R., Surguladze, S., Giampietro, V., Brammer, M., Hallahan, B., Dunbar, R. I. M., Phillips, M. & Murphy, D. (2008). Changes in male brain responses to emotional faces from adolescence to middle age. NeuroImage 40: 389–97.
Donath, J. & boyd, d. (2004). Public displays of connection. BT Technology Journal 22: 71–82.
Dunbar, R. I. M., Duncan, N. & Nettle, D. (1995). Size and structure of freely forming conversational groups. Human Nature 6: 67–78.
Nie, N. H. (2001). Sociability, interpersonal relations, and the internet: reconciling conflicting findings. American Behavioral Scientist 45: 420–35.
Pearce, H. E. (1982). A Sociological Study of Dating Agencies and ‘Lonely Hearts’ Columns. PhD thesis, University of London.
Pollet, T., Roberts, S. B. G. & Dunbar, R. I. M. (2011). Use of social network sites and instant messaging does not lead to increased offline social network size, or to emotionally closer relationships with offline network members. Cyberpsychology, Behavior and Social Networks 14: 253–8.
Roberts, S. B. G. & Dunbar, R. I. M. (2011). The costs of family and friends: an 18-month longitudinal study of relationship maintenance and decay. Evolution and Human Behavior.
Valenzuela, S., Park, N. & Kee, K. F. (2009). Is there social capital in a social network site?: Facebook use and college students’ life satisfaction, trust and participation. Journal of Computer-Mediated Communication 14: 875–901.
Valkenburg, P. & Peter, J. (2009). Social consequences of the internet for adolescents: a decade of research. Current Directions in Psychological Science 18: 1–5.
Vlahovic, T. A., Roberts, S. B. & Dunbar, R. I. M. Effects of time and laughter on subjective happiness within different modalities of communication. Journal of Computer-Mediated Communication (in press).
Abbott, D. H., Keverne, E. B., Moore, G. F. & Yodyinguad, U. (1986). Social suppression of reproduction in subordinate talapoin monkeys, Miopithecus talapoin. In J. Else & P. C. Lee (eds), Primate Ontogeny, 329–41. Cambridge: Cambridge University Press.
Aiello, L. C. & Dunbar, R. I. M. (1993). Neocortex size, group size and the evolution of language. Current Anthropology 34: 184–93.
Bereczkei, T. (1998). Kinship network, direct childcare, and fertility among Hungarians and Gypsies. Evolution and Human Behavior 19: 283–98.
Bowman, G. (1989). Fucking tourists: sexual relations and tourism in Jerusalem’s Old City. Critique of Anthropology 9: 77–93.
Burton, L. M. (1990). Teenage childbearing as an alternative life-course strategy in multigeneration black families. Human Nature 1: 123–43.
Daly, M. & Wilson, S. (1983). Sex, Evolution and Behavior. Belmont (CA): Wadsworth.
Davis, J. N. and Daly, M. (1997). Evolutionary theory and the human family. Quarterly Review of Biology 72: 407–35.
Del Giudice, M. (2009). Sex, attachment, and the development of reproductive strategies. Behavioral and Brain Sciences 32: 1–67.
Dunbar, R. I. M. (2009a). Deacon’s dilemma: the problem of pair-bonding in human evolution. In R. I. M. Dunbar, C. Gamble & J. A. G. Gowlett (eds), Social Brain, Distributed Mind, 159–79. Oxford: Oxford University Press.
Dunbar, R. I. M. (2004). The Human Story: A New View of Human Evolution. London: Faber and Faber.
Dunbar, R. I. M. (2000). Male mating strategies: a modelling approach. In P. Kappeler (ed) Primate Males, 259–68. Cambridge: Cambridge University Press.
Dunbar, R. I. M. (1995a). The mating system of Callitrichid primates. I. Conditions for the coevolution of pairbonding and twinning. Animal Behaviour 50: 1057–70.
Dunbar, R. I. M. (1995b). The mating system of Callitrichid primates. II. The impact of helpers. Animal Behaviour 50: 1071–89.
Dunbar, R. I. M. (2009b). Why only humans have language. In R. Botha & C. Knight (eds), The Prehistory of Language, 12–35. Oxford: Oxford University Press.
Dunbar, R. I. M., Buckland, D. & Miller, D. (1990). Mating strategies of male feral goats: a problem in optimal foraging. Animal Behaviour 40: 653–67.
Dunbar, R. I. M. & Dunbar, P. (1980). The pairbond in klipspringer. Animal Behaviour 28: 251–63.
Dunbar, R. I. M. & Shultz, S. (2007). Understanding primate brain evolution. Philosophical Transactions of the Royal Society, London 362B: 649–58.
Emlen, S. T. & Wrege, P. H. (1986). Forced copulations and intra-specific parasitism: two costs of social living in the white-fronted bee-eater. Ethology 71: 2–29.
Finlay, B. L., Darlington, R. B. & Nicastro, N. (2001). Developmental structure in brain evolution. Behavior and Brain Sciences 24: 263–308.
Foley, R. A. & Lee, P. C. (1991). Ecology and energetic of encephalization in hominid evolution. Philosophical Transactions of the Royal Society, London 334B: 223–32.
Harcourt, A. H. & Greenberg, J. (2001). Do gorilla females join males to avoid infanticide? A quantitative model. Animal Behaviour 62: 905–15.
Hawkes, K. (1991). Showing off: Tests of another hypothesis about men’s foraging goals. Ethology and Sociobiology 11: 29–54.
Hawkes, K., O’Connell, J. F. & Blurton Jones, N. (1989). Hardworking Hadza grandmothers. In V. Standen and R. A. Foley (eds), Comparative Socioecology: The Behavioural Ecology of Humans and Other Mammals, 341–66. Oxford: Blackwell.
Hawkes, K., O’Connell, J. F. & Blurton Jones, N. (1997). Hadza women’s time allocation, offspring provisioning, and the evolution of long postmenopausal life spans. Current Anthropology 38: 551–77.
Hrdy, S. B. (1981). The Woman That Never Evolved. Cambridge (MA): Harvard University Press.
Ivey, P. (2000). Cooperative reproduction in Ituri Forest huntergatherers: who cares for Efe infants. Current Anthropology 41: 856–66.
Kaptijn, R., Thomese, F., van Tilburg, T. G. & Liefbroer, A. C. (2010). How grandparents matter: support for the cooperative breeding hypothesis in a contemporary Dutch population. Human Nature 21: 393–405.
Komers, P. E. & Brotherton, P. N. M. (1997). Female space use is the best predictor of monogamy in mammals. Proceedings of the Royal Society, London 264B: 1261–70.
Lovejoy, C. O. (2010). Re-examining human origins in the light of Ardipithecus ramidus. Science 326: 74e1–e8.
McKinney, F., Derrickson, S. R. & Mineau, P. (1983). Forced copulation in waterfowl. Behaviour 86: 250–93.
Man, J. (2004). Genghis Khan: Life, Death and Resurrection. London: Bantam.
Marlowe, F. (2000). Paternal investment and the human mating system. Behavioural Processes 51: 45–61.
Mesnick, S. L. (1997). Sexual alliances: evidence and evolutionary implications. In P. A. Gowaty (ed), Feminism and Evolutionary Biology. London: Chapman and Hall.
Møller, A. P. (1985). Mixed reproductive strategy and mate guarding in a semi-colonial passerine, the swallow Hirundo rustica. Behavioral Ecology and Sociobiology 17: 401–8.
Nelson, E., Rolian, C., Cashmore, L. & Shultz, S. (2010). Digit ratios predict polygyny in early apes, Ardipithecus, Neanderthals and early modern humans but not in Australopithecus. Proceedings of the Royal Society B–Biological Sciences 278: 1556–63.
Schmitt, D. P. & 127 others (2003). Are men universally more dismissing than women? Gender differences in romantic attachment across 62 cultural regions. Personal Relationships 10: 307–31.
Sear, R., Mace, R. and McGregor, I. A. (2000). Maternal grandmothers improve nutritional status and survival of children in rural Gambia. Proceedings of the Royal Society, London 267B: 1641–7.
Shultz, S., Noe, R., McGraw, S. & Dunbar, R. I. M. (2004). A community-level evaluation of the impact of prey behavioural and ecological characteristics on predator diet composition. Proceedings of the Royal Society, London 271B: 725–32.
Shultz, S. & Dunbar, R. I. M. (2006). Chimpanzee and felid diet composition is influenced by prey brain size. Biology Letters 2: 505–8.
Starks, P. T. & Blackie, C. A. (2000). The relationship between serial monogamy and rape in the United States (1960–1995). Proceedings of the Royal Society, London 267B: 1259–63.
Thornhill, R. A. & Palmer, C. T. (2000). A Natural History of Rape: Biological Bases of Sexual Coercion. Cambridge (MA): MIT Press.
van Schaik, C. P. & Dunbar, R. I. M. (1990). The evolution of monogamy in large primates: a new hypothesis and some critical tests. Behaviour 115: 30–62.
Wilson, M. & Mesnick, S. L. (1997). An empirical test of the bodyguard hypothesis. In P. A. Gowaty (ed), Feminism and Evolutionary Biology. London: Chapman and Hall.
Zerjal, T., Xue, Y., Bertorelle, G., Wells, R. S., Bao, W., Zhu, S., Qamar, R., Ayub, R., Mohyuddin, A., Fu, S., Li, P., Yuldasheva, N., Ruzibakiev, R., Xu, J., Shu, Q., Du, R., Yang, H., Hurles, M. E., Robinson, E., Gerelsaikhan, T., Dashnyam, B., Mehdi, S. Q. & Tyler-Smith, C. (2003). The genetic legacy of the Mongols. American Journal of Human Genetics 72: 717–21.
Zinovieff, S. (1991). Hunters and hunted: Kamaki and the ambiguities of sexual predation in a Greek town. In P. Loizos & E. Papataxi-archis (eds), Contested Identities: Gender and Kinship in Modern Greece, 203–20. Princeton: Princeton University Press.