This innovative book challenges the perceived view, based largely on long observation of artificially fed chimpanzees in Gombe and Mahale National Parks, Tanzania, of the normal social behavior of chimpanzees as aggressive, dominance seeking, and fiercely territorial. In polar opposition, all reports from naturalistic (nonfeeding) field studies are of nonaggressive chimpanzees living peacefully on home ranges in fluid, open, nonhierarchical groups. This research has been largely ignored and downgraded by most of the scientific community. By utilizing the data from these studies, the author is able to construct a model of an egalitarian form of social organization, based on a role relationship of mutual dependence among many charismatic chimpanzees of both sexes and other more dependent members. This highly and necessarily positive mututal dependence system is characteristic of both undisturbed chimpanzees and humans who live or lived by the "immediate-return" foraging system.
Are humans by nature hierarchical or egalitarian? Hierarchy in the Forest addresses this question by examining the evolutionary origins of social and political behavior. Christopher Boehm, an anthropologist whose fieldwork has focused on the political arrangements of human and nonhuman primate groups, postulates that egalitarianism is in effect a hierarchy in which the weak combine forces to dominate the strong. The political flexibility of our species is formidable: we can be quite egalitarian, we can be quite despotic. Hierarchy in the Forest traces the roots of these contradictory traits in chimpanzee, bonobo, gorilla, and early human societies. Boehm looks at the loose group structures of hunter-gatherers, then at tribal segmentation, and finally at present-day governments to see how these conflicting tendencies are reflected. Hierarchy in the Forest claims new territory for biological anthropology and evolutionary biology by extending the domain of these sciences into a crucial aspect of human political and social behavior. This book will be a key document in the study of the evolutionary basis of genuine altruism. Table of Contents: The Question of Egalitarian Society Hierarchy and Equality Putting Down Aggressors Equality and Its Causes A Wider View of Egalitarianism The Hominoid Political Spectrum Ancestral Politics The Evolution of Egalitarian Society Paleolithic Politics and Natural Selection Ambivalence and Compromise in Human Nature References Index Reviews of this book: This well-written book, geared toward an audience with background in the behavioral and evolutionary sciences but accessible to a broad readership, raises two general questions: 'What is an egalitarian society?' and 'How have these societies evolved?'...[Christopher Boehm] takes the reader on a journey from the Arctic to the Americas, from Australia to Africa, in search of hunter-gatherer and tribal societies that emanate the egalitarian ethos--one that promotes generosity, altruism and sharing but forbids upstartism, aggression and egoism. Throughout this journey, Boehm tantalizes the reader with vivid anthropological accounts of ridicule, criticism, ostracism and even execution--prevalent tactics used by subordinates in egalitarian societies to level the social playing field...Hierarchy in the Forest is an interesting and thought-provoking book that is surely an important contribution to perspectives on human sociality and politics. --Ryan Earley, American Scientist Reviews of this book: Combing an exhaustive ethnographic survey of human societies from groups of hunter-gatherers to contemporary residents of the Balkans with a detailed analysis of the behavioral attributes of non-human primates (chimpanzees, gorillas, bonobos), Boehm focuses on whether humans are hierarchical or egalitarian by nature...[Boehm's hypotheses] are invariably intriguing and well documented...He raises topics of wide interest and his book should get attention. --Publishers Weekly Boehm has been the first to look at egalitarianism with a cold, unromantic eye. He sees it as a victory over hierarchical tendencies, which are equally marked in our species. I would predict that his insightful examination will reverberate within anthropology and the social sciences as well as among biologists interested in the evolution of social systems. --Frans de Waal, Emory University Hierarchy in the Forest is an original and stimulating contribution to thinking about the origins of egalitarianism. I personally find Boehm's ideas convincing, but whether one agrees with him or not, he has formulated his hypotheses in such a way that this book is likely to set the terms of the discussion for the forseeable future. --Barbara Smuts, University of Michigan The most unique and interesting feature of this clear, well written book is the way Boehm links the study of nonhuman primates (particularly chimpanzees) to traditional concepts of political anthropology. As a political scientist, I was intrigued by Boehm's suggestion that democracy, both ancient and modern, could be understood as the expression of the same natural dispositions that support the egalitarianism of nomadic bands and sedentary tribes. I expect that many scholars in biology, anthropology, and the social sciences would learn from this stimulating book. Even those who disagree with Boehm's arguments are likely to be provoked in instructive ways. --Larry Arnhart, Northern Illinois University Chris Boehm boldly and cogently attacks a whole orthodoxy in anthropology which sees hunter-gatherer 'egalitarianism' as somehow the basic form of human society. No praise can be too high for Boehm's brilliant and courageous book. --Robin Fox, Rutgers University
Homosexuality is an evolutionary paradox in search for a resolution, not a medical condition in search for a cure. Homosexual behavior is common among social animals, and mainly expressed within the context of a bisexual sexual orientation. Exclusive homosexuality is less common, but not unique to humans. Poiani and Dixson invite the reader to embark on a journey through the evolutionary, biological, psychological and sociological aspects of homosexuality, seeking an understanding of both the proximate and evolutionary causes of homosexual behavior and orientation in humans, other mammals and birds. The authors also provide a synthesis of what we know about homosexuality into a biosocial model that links recent advances in reproductive skew theory and various selection mechanisms to produce a comprehensive framework that will be useful for anyone teaching or planning future research in this field.
Recent field studies of a variety of mammalian species reveal a surprisingly high frequency of infanticide--the killing of unweaned or otherwise maternally dependent offspring. Similarly, studies of birds, fish, amphibians, and invertebrates demonstrate egg and larval mortality in these species, a phenomenon directly analogous to infanticide in mammals. In this collection, Hausfater and Hrdy draw together work on animal and human infanticide and place these studies in a broad evolutionary and comparative perspective. Infanticide presents the theoretical background and taxonomic distribution of infanticide, infanticide in nonhuman primates, infanticide in rodents, and infanticide in humans. It examines closely sex allocation and sex ratio theory, surveys the phylogeny of mammalian interbirth intervals, and reviews data on sources of egg and larval mortality in a variety of invertebrate and lower vertebrate species. Dealing with infanticide in nonhuman primates, two chapters critically examine data on infanticide in langurs and its broader theoretical implications. By reviewing sources of infant mortality in populations of small mammals and new laboratory analyses of the causes and consequences of infanticide, this work explores such issues as the ontogeny of infanticide, proximate cues of infants and females which elicit infanticidal behavior in males, the genetical basis of infanticide, and the hormonal determinants. Hausfater and Sarah Blaffer Hrdy, through their selection of materials for this book, evaluate the frequency, causes, and function of infanticide. Historical, ethnographic, and recent data on infanticide are surveyed. Infanticide summarizes current research on the evolutionary origins and proximate causation of infanticide in animals and man. As such it will be indispensable reading for anthropologists and behavioral biologists as well as ecologists, psychologists, demographers, and epidemiologists. Glenn Hausfater was professor at the division of biological sciences at the University of Missouri-Columbia. He is the author of Guidebook for the Long-Term Monitoring of Amboseli Baboons and their Habitat; Dominance and reproduction in Baboons; and Early Vegetation of the Illinois Valley. Sarah Blaffer Hrdy is professor emeritus of anthropology at the University of California, Davis. She is the author of The Woman that Never Evolved; The Langurs of Abu; and The Black-Man of Zinacantan.
This book embeds a novel evolutionary analysis of human group selection within a comprehensive overview of multilevel selection theory, a theory wherein evolution proceeds at the level of individual organisms and collectives, such as human families, tribes, states, and empires. Where previous works on the topic have variously supported multilevel selection with logic, theory, experimental data, or via review of the zoological literature; in this book the authors uniquely establish the validity of human group selection as a historical evolutionary process within a multilevel selection framework. Select portions of the historical record are examined from a multilevel selectionist perspective, such that clashing civilizations, decline and fall, law, custom, war, genocide, ostracism, banishment, and the like are viewed with the end of understanding their implications for internal cohesion, external defense, and population demography. In doing so, its authors advance the potential for further interdisciplinary study in fostering, for instance, the convergence of history and biology. This work will provide fresh insights not only for evolutionists but also for researchers working across the social sciences and humanities.
"The chapters in this book [posit] that humans clearly have the capacity to make war, but since war is absent in some cultures, it cannot be viewed as a human universal. And counter to frequent presumption, the actual archaeological record reveals the recent emergence of war. It does not typify the ancestral type of human society, the nomadic forager band, and contrary to widespread assumptions, there is little support for the idea that war is ancient or an evolved adaptation. Views of human nature as inherently warlike stem not from the facts but from cultural views embedded in Western thinking"--Amazon.com.
How much do animals matter--morally? Can we keep considering them as second class beings, to be used merely for our benefit? Or, should we offer them some form of moral egalitarianism? Inserting itself into the passionate debate over animal rights, this fascinating, provocative work by renowned scholar Paola Cavalieri advances a radical proposal: that we extend basic human rights to the nonhuman animals we currently treat as "things." Cavalieri first goes back in time, tracing the roots of the debate from the 1970s, then explores not only the ethical but also the scientific viewpoints, examining the debate's precedents in mainstream Western philosophy. She considers the main proposals of reform that recently have been advanced within the framework of today's prevailing ethical perspectives. Are these proposals satisfying? Cavalieri says no, claiming that it is necessary to go beyond the traditional opposition between utilitarianism and Kantianism and focus on the question of fundamental moral protection. In the case of human beings, such protection is granted within the widely shared moral doctrine of universal human rights' theory. Cavalieri argues that if we examine closely this theory, we will discover that its very logic extends to nonhuman animals as beings who are owed basic moral and legal rights and that, as a result, human rights are not human after all.
“A fascinating new analysis of human violence, filled with fresh ideas and gripping evidence from our primate cousins, historical forebears, and contemporary neighbors.” —Steven Pinker, author of The Better Angels of Our Nature We Homo sapiens can be the nicest of species and also the nastiest. What occurred during human evolution to account for this paradox? What are the two kinds of aggression that primates are prone to, and why did each evolve separately? How does the intensity of violence among humans compare with the aggressive behavior of other primates? How did humans domesticate themselves? And how were the acquisition of language and the practice of capital punishment determining factors in the rise of culture and civilization? Authoritative, provocative, and engaging, The Goodness Paradox offers a startlingly original theory of how, in the last 250 million years, humankind became an increasingly peaceful species in daily interactions even as its capacity for coolly planned and devastating violence remains undiminished. In tracing the evolutionary histories of reactive and proactive aggression, biological anthropologist Richard Wrangham forcefully and persuasively argues for the necessity of social tolerance and the control of savage divisiveness still haunting us today.
