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  1. Marshall Abrams (2009). Fitness “Kinematics”: Biological Function, Altruism, and Organism–Environment Development. Biology and Philosophy 24 (4):487-504.
    It’s recently been argued that biological fitness can’t change over the course of an organism’s life as a result of organisms’ behaviors. However, some characterizations of biological function and biological altruism tacitly or explicitly assume that an effect of a trait can change an organism’s fitness. In the first part of the paper, I explain that the core idea of changing fitness can be understood in terms of conditional probabilities defined over sequences of events in an organism’s life. The result (...)
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  2. Sarah E. Ainsworth & Roy F. Baumeister (2013). Cooperation and Fairness Depend on Self-Regulation. Behavioral and Brain Sciences 36 (1):79-80.
    Any evolved disposition for fairness and cooperation would not replace but merely compete with selfish and other antisocial impulses. Therefore, we propose that human cooperation and fairness depend on self-regulation. Evidence shows reductions in fairness and other prosocial tendencies when self-regulation fails.
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  3. Sean Allen-Hermanson (forthcoming). Kamikazes and Cultural Evolution. Studies in History and Philosophy of Science Part C: Biological and Biomedical Sciences.
  4. Mahesh Ananth (2005). Psychological Altruism Vs. Biological Altruism: Narrowing the Gap with the Baldwin Effect. Acta Biotheoretica 53 (3):217-239.
    This paper defends the position that the supposed gap between biological altruism and psychological altruism is not nearly as wide as some scholars (e.g., Elliott Sober) insist. Crucial to this defense is the use of James Mark Baldwin's concepts of “organic selection”and “social heredity” to assist in revealing that the gap between biological and psychological altruism is more of a small lacuna. Specifically, this paper argues that ontogenetic behavioral adjustments, which are crucial to individual survival and reproduction, are also crucial (...)
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  5. Lorenzo Baravalle (2014). The many faces of altruism: selective pressures and human groups. Scientiae Studia 12 (1):97-120.
    No âmbito do debate sobre as unidades envolvidas nos processos seletivos, a controvérsia sobre a possibilidade de comportamentos genuinamente altruístas tem um lugar destacado. Partindo de uma posição declaradamente pluralista, discutir-se-ão, neste artigo, algumas questões relevantes para esse tópico. Em primeiro lugar, o altruísmo será concebido como uma propriedade fenotípica dos grupos biológicos, e não apenas de seus membros. Essa caraterização levará, em um segundo momento, à discussão sobre a relação entre grupos em sociedades complexas, como é o caso das (...)
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  6. Matthew Barrett & Peter Godfrey-smith (2002). Group Selection, Pluralism, and the Evolution of Altruism. [REVIEW] Philosophy and Phenomenological Research 65 (3):685–691.
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  7. Irene Berra (2014). An Evolutionary Ockham's Razor to Reciprocity. Frontiers in Theoretical and Philosophical Psychology 5:01258.
    Reciprocal altruism implies delayed payoffs by definition. It might therefore seem logical to assume that limited memory, calculation, and planning capacities have constrained the evolution of reciprocity in non-human animals. Here I will argue that this is not the case. First, I will show that the emotional track of past interactions is enough to motivate and maintain reciprocity over longer timespans. Second, I will propose a developmental pathway of this system of emotional bookkeeping. In particular, the neuropeptide modulation underlying mother-infant (...)
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  8. Jonathan Birch (2016). Hamilton's Two Conceptions of Social Fitness. Philosophy of Science.
    Hamilton introduced two conceptions of social fitness, which he called neighbour-modulated fitness and inclusive fitness. Although he regarded them as formally equivalent, a re-analysis of his own argument for their equivalence brings out two important assumptions on which it rests: weak additivity and actor's control. When weak additivity breaks down, neither fitness concept is appropriate in its original form. When actor's control breaks down, neighbour-modulated fitness may be appropriate, but inclusive fitness is not. Yet I argue that, despite its more (...)
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  9. Jonathan Birch (2014). Gene Mobility and the Concept of Relatedness. Biology and Philosophy 29 (4):445-476.
    Cooperation is rife in the microbial world, yet our best current theories of the evolution of cooperation were developed with multicellular animals in mind. Hamilton’s theory of inclusive fitness is an important case in point: applying the theory in a microbial setting is far from straightforward, as social evolution in microbes has a number of distinctive features that the theory was never intended to capture. In this article, I focus on the conceptual challenges posed by the project of extending Hamilton’s (...)
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  10. Jonathan Birch (2014). How Cooperation Became the Norm. [REVIEW] Biology and Philosophy 29 (3):433-444.
    Most of the contributions to Cooperation and Its Evolution grapple with the distinctive challenges presented by the project of explaining human sociality. Many of these puzzles have a ‘chicken and egg’ character: our virtually unparalleled capacity for large-scale cooperation is the product of psychological, behavioural, and demographic changes in our recent evolutionary history, and these changes are linked by complex patterns of reciprocal dependence. There is much we do not yet understand about the timing of these changes, and about the (...)
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  11. Jonathan Birch (2014). Hamilton's Rule and Its Discontents. British Journal for the Philosophy of Science 65 (2):381-411.
    In an incendiary 2010 Nature article, M. A. Nowak, C. E. Tarnita, and E. O. Wilson present a savage critique of the best-known and most widely used framework for the study of social evolution, W. D. Hamilton’s theory of kin selection. More than a hundred biologists have since rallied to the theory’s defence, but Nowak et al. maintain that their arguments ‘stand unrefuted’. Here I consider the most contentious claim Nowak et al. defend: that Hamilton’s rule, the core explanatory principle (...)
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  12. Jonathan Birch (2013). Samir Okasha and Ken Binmore (Eds) Evolution and Rationality: Decisions, Cooperation, and Strategic Behaviour. [REVIEW] British Journal for the Philosophy of Science 64 (3):669-673.
    Evolution and Rationality marks the end of a three-year project, ‘Evolution, Cooperation, and Rationality’, directed at the University of Bristol by the book’s editors, Samir Okasha and Ken Binmore. The collection draws together the editors’ pick of the papers delivered at the conferences the project hosted, and covers a wide range of topics at the intersection of evolutionary theory and the social sciences. It is a splendid anthology: timely, interdisciplinary, thematically cohesive, and full of substantive and interesting disagreements between the (...)
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  13. Jonathan Birch (2012). Social Revolution. [REVIEW] Biology and Philosophy 27 (4):571-581.
    Andrew Bourke’s Principles of Social Evolution identifies three stages that characterize an evolutionary transition in individuality and deploys inclusive fitness theory to explain each stage. The third stage, social group transformation, has hitherto received relatively little attention from inclusive fitness theorists. In this review, I first discuss Bourke’s “virtual dominance” hypothesis for the evolution of the germ line. I then contrast Bourke’s inclusive fitness approach to the major transitions with the multi-level approach developed by Richard Michod, Samir Okasha and others. (...)
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  14. Jonathan Birch (2012). Collective Action in the Fraternal Transitions. Biology and Philosophy 27 (3):363-380.
    Inclusive fitness theory was not originally designed to explain the major transitions in evolution, but there is a growing consensus that it has the resources to do so. My aim in this paper is to highlight, in a constructive spirit, the puzzles and challenges that remain. I first consider the distinctive aspects of the cooperative interactions we see within the most complex social groups in nature: multicellular organisms and eusocial insect colonies. I then focus on one aspect in particular: the (...)
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  15. Jonathan Birch & James A. R. Marshall (2014). Queller's Separation Condition Explained and Defended. American Naturalist 184 (4):531-540.
    The theories of inclusive fitness and multilevel selection provide alternative perspectives on social evolution. The question of whether these perspectives are of equal generality remains a divisive issue. In an analysis based on the Price equation, Queller argued (by means of a principle he called the separation condition) that the two approaches are subject to the same limitations, arising from their fundamentally quantitative-genetical character. Recently, van Veelen et al. have challenged Queller’s results, using this as the basis for a broader (...)
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  16. Jonathan Birch & Samir Okasha (2015). Kin Selection and Its Critics. BioScience 65 (1):22-32.
    Hamilton’s theory of kin selection is the best-known framework for understanding the evolution of social behavior but has long been a source of controversy in evolutionary biology. A recent critique of the theory by Nowak, Tarnita, and Wilson sparked a new round of debate, which shows no signs of abating. In this overview, we highlight a number of conceptual issues that lie at the heart of the current debate. We begin by emphasizing that there are various alternative formulations of Hamilton’s (...)
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  17. Christopher Boehm (1999). The Natural Selection of Altruistic Traits. Human Nature 10 (3):205-252.
    Proponents of the standard evolutionary biology paradigm explain human “altruism” in terms of either nepotism or strict reciprocity. On that basis our underlying nature is reduced to a function of inclusive fitness: human nature has to be totally selfish or nepotistic. Proposed here are three possible paths to giving costly aid to nonrelatives, paths that are controversial because they involve assumed pleiotropic effects or group selection. One path is pleiotropic subsidies that help to extend nepotistic helping behavior from close family (...)
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  18. Robert Böhm, Hannes Rusch & Özgür Gürerk (2016). What Makes People Go to War? Defensive Intentions Motivate Retaliatory and Preemptive Intergroup Aggression. Evolution and Human Behavior 37 (1):29-34.
    Although humans qualify as one of the most cooperative animal species, the scale of violent intergroup conflict among them is unparalleled. Explanations of the underlying motivations to participate in an intergroup conflict, however, remain unsatisfactory. While previous research shows that intergroup conflict increases individually costly behavior to the benefit of the in-group, it has failed to identify robust triggers of aggressive behavior directed at out-groups. Here, we present a controlled laboratory experiment which demonstrates that such aggression can be provoked systematically (...)
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  19. Alan carter (2005). Evolution and the Problem of Altruism. Philosophical Studies 123 (3):213-230.
    Genuine altruism would appear to be incompatible with evolutionary theory. And yet altruistic behavior would seem to occur, at least on occasion. This article first considers a game-theoretical attempt at solving this seeming paradox, before considering agroup selectionist approach. Neither approach, as they stand, would seem to render genuine, as opposed to reciprocal, altruism compatible with the theory of evolution. The article concludes by offering an alternative game-theoretical solution to the problem of altruism.
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  20. Gustavo Cevolani & Roberto Festa (2012). Giochi di altruismo. L'approccio evoluzionistico alla cooperazione umana. In Matt Ridley (ed.), Le Origini della Virtù. IBL Libri 7--38.
    This is the introductory essay to the Italian translation of Matt Ridley's "The origins of virtue", surveying the game-theoretic and evolutionary approaches to the emergence and evolution of cooperation and altruism.
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  21. Christine Clavien & Michel Chapuisat (forthcoming). The Evolution of Utility Functions and Psychological Altruism. Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences.
    Numerous studies show that humans tend to be more cooperative than expected given the assumption that they are rational maximizers of personal gain. As a result, theoreticians have proposed elaborated formal representations of human decision-making, in which utility functions including “altruistic” or “moral” preferences replace the purely self-oriented "Homo economicus" function. Here we review mathematical approaches that provide insights into the mathematical stability of alternative utility functions. Candidate utility functions may be evaluated with help of game theory, classical modeling of (...)
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  22. Christine Clavien & Michel Chapuisat (2016). The Evolution of Utility Functions and Psychological Altruism. Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences 56:24-31.
    Numerous studies show that humans tend to be more cooperative than expected given the assumption that they are rational maximizers of personal gain. As a result, theoreticians have proposed elaborated formal representations of human decision-making, in which utility functions including “altruistic” or “moral” preferences replace the purely self-oriented "Homo economicus" function. Here we review mathematical approaches that provide insights into the mathematical stability of alternative ways of representing human decision-making in social contexts. Candidate utility functions may be evaluated with help (...)
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  23. Christine Clavien & Michel Chapuisat (2013). Altruism Across Disciplines: One Word, Multiple Meanings. Biology and Philosophy 28 (1):125-140.
    Altruism is a deep and complex phenomenon that is analysed by scholars of various disciplines, including psychology, philosophy, biology, evolutionary anthropology and experimental economics. Much confusion arises in current literature because the term altruism covers variable concepts and processes across disciplines. Here we investigate the sense given to altruism when used in different fields and argumentative contexts. We argue that four distinct but related concepts need to be distinguished: (a) psychological altruism , the genuine motivation to improve others’ interests and (...)
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  24. Christine Clavien & Michel Chapuisat (2012). Altruism - a Philosophical Analysis. eLS.
    Altruism is a malleable notion that is understood differently in various disciplines. The common denominator of most definitions of altruism is the idea of unidirectional helping behaviour. However, a closer examination reveals that the term altruism sometimes refers to the outcomes of a helping behaviour for the agent and its neighbours – i.e. reproductive altruism – and sometimes to what motivates the agent to help others – i.e. psychological altruism. Since these perspectives on altruism are crucially different, it is important (...)
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  25. Oliver Curry, Sam G. B. Roberts & Robin I. M. Dunbar, Altruism in Social Networks: Evidence for a 'Kinship Premium'.
    Why and under what conditions are individuals altruistic to family and friends in their social networks? Evolutionary psychology suggests that such behaviour is primarily the product of adaptations for kin- and reciprocal altruism, dependent on the degree of genetic relatedness and exchange of benefits, respectively. For this reason, individuals are expected to be more altruistic to family members than to friends: whereas family members can be the recipients of kin and reciprocal altruism, friends can be the recipients of reciprocal altruism (...)
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  26. Tim Dean (2012). Evolution and Moral Diversity. The Baltic International Yearbook of Cognition, Logic and Communication 7 (1):1-16.
    If humans have an evolved moral psychology, then we should not expect it to function in an identical way between individuals. Instead, we should expect a diversity in the function of our moral psychology between individuals that varies along genetic lines, and a corresponding diversity of moral attitudes and moral judgements that emerge from it. This is because there was no one psychological type that would reliably produce adaptive social behaviour in the highly heterogeneous environments in which our minds evolved. (...)
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  27. Jay Elliott (2011). Stag Hunts and Committee Work: Cooperation and the Mutualistic Paradigm. [REVIEW] Review of Philosophy and Psychology 2 (2):245-260.
    Contemporary philosophers and psychologists seek the roots of ethically sound forms of behavior, including altruism and a sense of fairness, in the basic structure of cooperative action. I argue that recent work on cooperation in both philosophy and psychology has been hampered by what I call “the mutualistic paradigm.” The mutualistic paradigm treats one kind of cooperative situation—what I call a “mutualistic situation”—as paradigmatic of cooperation in general. In mutualistic situations, such as the primeval stag hunt described by Brian Skyrms, (...)
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  28. Peter Gildenhuys (2003). The Evolution of Altruism: The Sober/Wilson Model. Philosophy of Science 70 (1):27-48.
    In what follows, I critique the interpretation that Sober and Wilson offer of their group selection model in Unto Others. Sober and Wilson mistakenly claim that their model operates as an example of Simpson's paradox and defend an interpretation of their model according to which groups are operated upon by natural selection. In the place of their interpretation, I offer one that parallels the mathematical calculation of the model's outcome and does not depend on the postulation of a force of (...)
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  29. Peter Godfrey-Smith (2002). Group Selection, Pluralism, and the Evolution of Altruism. [REVIEW] Philosophy and Phenomenological Research 65 (3):685 - 691.
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  30. Michael Gurven (2004). To Give and to Give Not: The Behavioral Ecology of Human Food Transfers. Behavioral and Brain Sciences 27 (4):543-559.
    The transfer of food among group members is a ubiquitous feature of small-scale forager and forager-agricultural populations. The uniqueness of pervasive sharing among humans, especially among unrelated individuals, has led researchers to evaluate numerous hypotheses about the adaptive functions and patterns of sharing in different ecologies. This article attempts to organize available cross-cultural evidence pertaining to several contentious evolutionary models: kin selection, reciprocal altruism, tolerated scrounging, and costly signaling. Debates about the relevance of these models focus primarily on the extent (...)
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  31. Oren Harman (2011). Helical Biography and the Historical Craft: The Case of Altruism and George Price. [REVIEW] Journal of the History of Biology 44 (4):671 - 691.
    The life of George Price (1922-1975), the eccentric polymath genius and father of the Price equation, is used as a prism and counterpoint through which to consider an age-old evolutionary conundrum: the origins of altruism. This biographical project, and biography and history more generally, are considered in terms of the possibility of using form to convey content in particular ways. Closer to an art form than a science, this approach to scholarship presents both a unique challenge and promise.
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  32. William Harms (1999). Biological Altruism in Hostile Environments. Complexity 5 (2):23-28.
    The evolution of economic altruism is one of the most vigorous areas of study at the intersection of biology, economics, and philosophy. The basic problem is easily understood. Biological organisms, be they people or paramecia, have ample opportunity to confer benefits on others at relatively low cost to themselves. If conferring such benefits becomes common, the overall productivity of the population in which it occurs is increased. Presumably, there is no advantage to refusing such benefits, but it is also the (...)
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  33. Joseph Heath (2002). The Robustness of Altruism as an Evolutionary Strategy. Biology and Philosophy 17 (4):567-590.
    Kin selection, reciprocity and group selection are widely regarded as evolutionary mechanisms capable of sustaining altruism among humans andother cooperative species. Our research indicates, however, that these mechanisms are only particular examples of a broader set of evolutionary possibilities.In this paper we present the results of a series of simple replicator simulations, run on variations of the 2–player prisoner's dilemma, designed to illustrate the wide range of scenarios under which altruism proves to be robust under evolutionary pressures. The set of (...)
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  34. Hope Hollocher, Agustin Fuentes, Charles H. Pence, Grant Ramsey, Daniel John Sportiello & Michelle M. Wirth (2011). On the Origin of Stories: Evolution, Cognition, and Fiction. [REVIEW] Quarterly Review of Biology 86 (2):137-138.
  35. Julie Hui & Terrence Deacon (2010). 9 The Evolution of Altruism Via Social Addiction. Proceedings of the British Academy 158:177.
    Each generation of evolutionary biologists has brought a fresh wave of attempts to answer the evolutionary riddle of altruism. However, none describe how such a condition could incrementally evolve from a prior condition of non-cooperation. This chapter describes a mechanism that could spontaneously and incrementally give rise to a synergistic codependence among individuals within a social group. It shows that prolonged social living in the absence of reproductive cost can mask selection-maintaining traits important for autonomous living, causing them to drift (...)
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  36. Klaus Jaffe (2004). Altruism, Altruistic Punishment and Social Investment. Acta Biotheoretica 52 (3):155-172.
    The concept of altruism is used in very different forms by computer scientists,economists, philosophers, social scientists, psychologists and biologists. Yet, in order to be useful in social simulations, the concept altruism requires a more precise meaning. A quantitative formulation is proposed here, based on the cost/benefit analysis of the altruist and of society at large. This formulation is applied in the analysis of the social dynamic working of behaviors that have been called altruistic punishments, using the agent based computer model (...)
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  37. Benjamin Kerr, Peter Godfrey-Smith & Marcus W. Feldman, What is Altruism?
    Altruism is generally understood to be behavior that benefits others at a personal cost to the behaving individual. However, within evolutionary biology, different authors have interpreted the concept of altruism differently, leading to dissimilar predictions about the evolution of altruistic behavior. Generally, different interpretations diverge on which party receives the benefit from altruism and on how the cost of altruism is assessed. Using a simple trait-group framework, we delineate the assumptions underlying different interpretations and show how they relate to one (...)
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  38. Philip Kitcher (1993). The Evolution of Human Altruism. Journal of Philosophy 60 (10):497-516.
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  39. Ehud Lamm (forthcoming). Cultural Group Selection and Holobiont Evolution – a Comparison of Structures of Evolution. In Snait Gissis, Ehud Lamm & Ayelet Shavit (eds.), Landscapes of Collectivity in the Life Sciences. MIT Press
    The notion of structure of evolution is proposed to capture what it means to say that two situations exhibit the same or similar constellations of factors affecting evolution. The key features of holobiont evolution and the hologenome theory are used to define a holobiont structure of evolution. Finally, Cultural Group Selection, a set of hypotheses regarding the evolution of human cognition, is shown to match the holobiont structure closely though not perfectly.
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  40. B. Linsky & M. Mathen (eds.) (1988). New Essays on Philosophy and Biology (Canadian Journal of Philosophy Supp. Vol. 14). University of Calgary Press.
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  41. Fritz J. McDonald (2014). Cooperation and Its Evolution. Philosophical Psychology 28 (8):1253-1255.
    Review of Cooperation and its Evolution, edited by Kim Sterelny, Richard Joyce, Brett Calcott, and Ben Fraser.
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  42. Christian Miller, Berlin Heather & Shermer Michael (2016). The Moral Animal: Virtue, Vice, and Human Nature. Annals of the New York Academy of Sciences:39-56.
    Steve Paulson, executive producer and host of To the Best of Our Knowledge, moderated a discussion with philosopher Christian Miller, neuroscientist Heather Berlin, and historian of science Michael Shermer to examine our moral ecology and its influence on our underlying assumptions about human nature.
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  43. Hisashi Nakao, Kohei Tamura, Yui Arimatsu, Tomomi Nakagawa, Naoko Matsumoto & Takehiko Matsugi (2016). Violence in the Prehistoric Period of Japan: The Spatio-Temporal Pattern of Skeletal Evidence for Violence in the Jomon Period. Biology Letters 12:20160028.
    Whether man is predisposed to lethal violence, ranging from homicide to warfare, and how that may have impacted human evolution, are among the most controversial topics of debate on human evolution. Although recent studies on the evolution of warfare have been based on various archaeological and ethnographic data, they have reported mixed results: it is unclear whether or not warfare among prehistoric hunter–gatherers was common enough to be a component of human nature and a selective pressure for the evolution of (...)
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  44. Randolph M. Nesse (2007). Runaway Social Selection for Displays of Partner Value and Altruism. Biological Theory 2 (2):143-155.
    Runaway social selection resulting from partner choice may have shaped aspects of human cooperation and complex sociality that are otherwise hard to account for. Social selection is the subtype of natural selection that results from the social behaviors of other individuals. Competition to be chosen as a social partner can, like competition to be chosen as a mate, result in runaway selection that shapes extreme traits. People prefer partners who display valuable resources and bestow them selectively on close partners. The (...)
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  45. Randolph M. Nesse (2000). How Selfish Genes Shape Moral Passions. Journal of Consciousness Studies 7 (1-2):1-2.
    Genes are ‘selfish’ in that they make organisms whose behaviours are shaped, necessarily, to benefit their genes. But altruism and selfishness as we usually think of them have little to do with ‘evolutionary altruism’ and ‘evolutionary selfishness', and the use of these phrases has given rise to much confusion. The most pernicious is the false conclusion that individual altruism is impossible unless it has been shaped by group selection. In fact, human altruism and morality are shaped by genes because individuals (...)
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  46. Leonard Nunney (2000). Altruism, Benevolence and Culture. Journal of Consciousness Studies 7 (1-2):1-2.
    Human cultural groups appear well designed, but is this apparent design due to altruism or due to self-serving behaviours? Sober and Wilson argue that human cultures are founded on group-selected altruism. This argument assumes that individually selected self-serving traits are not being misidentified as altruistic. A simple definition of individual selection suggests that Sober and Wilson fail to separate one such trait, called benevolence, from altruism. Benevolent individuals act selfishly but provide an incidental benefit to their neighbours. The female-biased Hamiltonian (...)
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  47. Ryo Oda, Noriko Yamagata, Yuki Yabiku & Akiko Matsumoto-Oda (2009). Altruism Can Be Assessed Correctly Based on Impression. Human Nature 20 (3):331-341.
    Detection of genuine altruists could be a solution to the problem of subtle cheating. Brown et al. (Evol Psychol 1:42–69, 2003) found that humans could detect altruists using nonverbal cues. However, their experiments can be improved upon in several ways, and further investigation is needed to determine whether altruist-detection abilities are human universals. In our experiment, we used video clips of natural conversations as the stimulus. We asked a sample of Japanese undergraduates to rate their own level of altruism and (...)
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  48. Samir Okasha (2002). Genetic Relatedness and the Evolution of Altruism. Philosophy of Science 69 (1):138-149.
    In their recent book, Elliott Sober and David Wilson (1998) argue that evolutionary biologists have wrongly regarded kinship as the exclusive means by which altruistic behavior can evolve, at the expense of other mechanisms. I argue that Sober and Wilson overlook certain genetical considerations which suggest that kinship is likely to be a more powerful means for generating complex altruistic adaptations than the alternative mechanisms they propose.
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  49. Charles H. Pence & Lara Buchak (2012). Oyun: A New, Free Program for Iterated Prisoner’s Dilemma Tournaments in the Classroom. Evolution Education and Outreach 5 (3):467-476.
    Evolutionary applications of game theory present one of the most pedagogically accessible varieties of genuine, contemporary theoretical biology. We present here Oyun (OY-oon, http://charlespence.net/oyun), a program designed to run iterated prisoner’s dilemma tournaments, competitions between prisoner’s dilemma strategies developed by the students themselves. Using this software, students are able to readily design and tweak their own strategies, and to see how they fare both in round-robin tournaments and in “evolutionary” tournaments, where the scores in a given “generation” directly determine contribution (...)
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  50. Anthony Peressini (1993). Generalizing Evolutionary Altruism. Philosophy of Science 60 (4):568-586.
    Although accounts of evolutionary altruism which leave the question of whether altruism can evolve in nature open to empirical confirmation/refutation have been worked out for special (two-trait) cases, no real effort has been made to work out such accounts for general (N-trait) cases. It is tempting to take this lack of attention as evidence for an inextricably conventional element, which precludes such accounts from being of practical scientific value. I argue that such accounts do generalize in a natural way. As (...)
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