Evolutionary Foundations of Human Behavior Series – serie

Despite wide acceptance that the attributes of living creatures have appeared through a cumulative evolutionary process guided chiefly by natural selection, many human activities have seemed analytically inaccessible through such an approach. Prominent evolutionary biologists, for example, have described morality as contrary to the direction of biological evolution, and moral philosophers rarely regard evolution as relevant to their discussions.The Biology of Moral Systems adopts the position that moral questions arise out of conflicts of interest, and that moral systems are ways of using confluences of interest at lower levels of social organization to deal with conflicts of interest at higher levels. Moral systems are described as systems of indirect reciprocity: humans gain and lose socially and reproductively not only by direct transactions, but also by the reputations they gain from the everyday flow of social interactions.The author develops a general theory of human interests, using senescence and effort theory from biology, to help analyze the patterning of human lifetimes. He argues that the ultimate interests of humans are reproductive, and that the concept of morality has arisen within groups because of its contribution to unity in the context, ultimately, of success in intergroup competition. He contends that morality is not easily relatable to universals, and he carries this argument into a discussion of what he calls the greatest of all moral problems, the nuclear arms race."Crammed with sage observations on moral dilemmas and many reasons why an understanding of evolution based on natural selection will advance thinking in finding practical solutions to our most difficult social problems." û Annals of the American Academy of Political and Social Sciences Richard D. Alexander is Donald Ward Tinkle Professor of Evolutionary Biology, Department of Biology, and Curator of Insects, Museum of Zoology, University of Michigan. A recipient of numerous awards, Dr. Alexander is the author of Darwinism and Human Affairs.

Despite wide acceptance that the attributes of living creatures have appeared through a cumulative evolutionary process guided chiefly by natural selection, many human activities have seemed analytically inaccessible through such an approach. Prominent evolutionary biologists, for example, have described morality as contrary to the direction of biological evolution, and moral philosophers rarely regard evolution as relevant to their discussions.The Biology of Moral Systems adopts the position that moral questions arise out of conflicts of interest, and that moral systems are ways of using confluences of interest at lower levels of social organization to deal with conflicts of interest at higher levels. Moral systems are described as systems of indirect reciprocity: humans gain and lose socially and reproductively not only by direct transactions, but also by the reputations they gain from the everyday flow of social interactions.The author develops a general theory of human interests, using senescence and effort theory from biology, to help analyze the patterning of human lifetimes. He argues that the ultimate interests of humans are reproductive, and that the concept of morality has arisen within groups because of its contribution to unity in the context, ultimately, of success in intergroup competition. He contends that morality is not easily relatable to universals, and he carries this argument into a discussion of what he calls the greatest of all moral problems, the nuclear arms race."Crammed with sage observations on moral dilemmas and many reasons why an understanding of evolution based on natural selection will advance thinking in finding practical solutions to our most difficult social problems." û Annals of the American Academy of Political and Social Sciences Richard D. Alexander is Donald Ward Tinkle Professor of Evolutionary Biology, Department of Biology, and Curator of Insects, Museum of Zoology, University of Michigan. A recipient of numerous awards, Dr. Alexander is the author of Darwinism and Human Affairs.

Those who have been privileged to watch baboons long enough to know them as individuals and who have learned to interpret some of their more subtle interactions will attest that the rapid flow of baboon behavior can at times be overwhelming. In fact, some of the most sophisticated and influential observation methods for sampling vertebrate social behavior grew out of baboon studies, invented by scientists who were trying to cope with the intricacies of baboon behavior. Barbara Smuts' eloquent study of baboons reveals a new depth to their behavior and extends the theories needed to account for it.While adhering to the most scrupulous methodological strictures, the author maintains an open research strategy--respecting her subjects by approaching them with the open mind of an ethnographer and immersing herself in the complexities of baboon social life before formulating her research design, allowing her to detect and document a new level of subtlety in their behavior. At the Gilgil site, described in this book, she could stroll and sit within a few feet of her subjects. By maintaining such proximity she was able to watch and listen to intimate exchanges within the troop; she was able, in other words, to shift the baboons well along the continuum from "subject" to "informant." By doing so she has illuminated new networks of special relationships in baboons. This empirical contribution accompanies theoretical insights that not only help to explain many of the inconsistencies of previous studies but also provide the foundation for a whole new dimension in the study of primate behavior: analysis oft he dynamics of long-term, intimate relationships and their evolutionary significance.At every stage of research human observers have underestimated the baboon. These intelligent, curious, emotional, and long-lived creatures are capable of employing stratagems and forming relationships that are not easily detected by traditional research methods. In the process of unraveling their complex social relationships, Smuts has revealed that these masters of strategy and aggressive competition are equally capable of patience, tenderness, and concern.

This volume presents state-of-the-art empirical studies working in a paradigm that has become known as human behavioral ecology. The emergence of this approach in anthropology was marked by publication by Aldine in 1979 of an earlier collection of studies edited by Chagnon and Irons entitled Evolutionary Biology and Human Social Behavior: An Anthropological Perspective. During the two decades that have passed since then, this innovative approach has matured and expanded into new areas that are explored here.The book opens with an introductory chapter by Chagnon and Irons tracing the origins of human behavioral ecology and its subsequent development. Subsequent chapters, written by both younger scholars and established researchers, cover a wide range of societies and topics organ-ized into six sections. The first section includes two chapters that provide historical background on the development of human behavioral ecology and com-pare it to two complementary approaches in the study of evolution and human behavior, evolutionary psychology, and dual inheritance theory. The second section includes five studies of mating efforts in a variety of societies from South America and Africa. The third section covers parenting, with five studies on soci-eties from Africa, Asia, and North America. The fourth section breaks somewhat with the tradition in human behavioral ecology by focusing on one particularly problematic issue, the demographic transition, using data from Europe, North America, and Asia. The fifth section includes studies of cooperation and helping behaviors, using data from societies in Micronesia and South America. The sixth and final section consists of a single chapter that places the volume in a broader critical and comparative context.The contributions to this volume demonstrate, with a high degree of theoretical and methodological sophistication--the maturity and freshness of this new paradigm in the study of human behavior. The volume will be of interest to anthropologists and other professions working on the study of cross-cultural human behavior.

This volume presents state-of-the-art empirical studies working in a paradigm that has become known as human behavioral ecology. The emergence of this approach in anthropology was marked by publication by Aldine in 1979 of an earlier collection of studies edited by Chagnon and Irons entitled Evolutionary Biology and Human Social Behavior: An Anthropological Perspective. During the two decades that have passed since then, this innovative approach has matured and expanded into new areas that are explored here.The book opens with an introductory chapter by Chagnon and Irons tracing the origins of human behavioral ecology and its subsequent development. Subsequent chapters, written by both younger scholars and established researchers, cover a wide range of societies and topics organ-ized into six sections. The first section includes two chapters that provide historical background on the development of human behavioral ecology and com-pare it to two complementary approaches in the study of evolution and human behavior, evolutionary psychology, and dual inheritance theory. The second section includes five studies of mating efforts in a variety of societies from South America and Africa. The third section covers parenting, with five studies on soci-eties from Africa, Asia, and North America. The fourth section breaks somewhat with the tradition in human behavioral ecology by focusing on one particularly problematic issue, the demographic transition, using data from Europe, North America, and Asia. The fifth section includes studies of cooperation and helping behaviors, using data from societies in Micronesia and South America. The sixth and final section consists of a single chapter that places the volume in a broader critical and comparative context.The contributions to this volume demonstrate, with a high degree of theoretical and methodological sophistication--the maturity and freshness of this new paradigm in the study of human behavior. The volume will be of interest to anthropologists and other professions working on the study of cross-cultural human behavior.

The Cannibal Within offers an evolutionary account of the propensity of human beings, in extreme circumstances to eat other human beings, despite the strong Western taboo against such practices. What sets this volume apart from the large body of literature on cannibalism, both popular and anthropological, is the underlying premise: cannibalism as an alternative to starvation is tacitly condoned by the same biological morality that would condemn cannibalism of other sorts in non-threatening situations. Deep as the taboos may be, the survival instinct runs even deeper. The title of the book reflects the author's belief that cannibalism is not a pathology that erupts in psychotic individuals, but is a universal adaptive strategy that is evolutionarily sound. The cannibal is within all of us, and cannibals are within all cultures, should the circumstances demand cannibalism's appearance and usage. Petrinovich's work is rich in historical detail, and rises to a level of theoretical sophistication in addressing a subject too often dealt with in sensationalist terms. The major instances in which survival cannibalism has occurred convinced the author that there is a consistent pattern and a uniform regularity of order in which different kinds of individuals are consumed. In considering who eats whom, when, and under what circumstances, this regularity appears, and it is consistent with what would be expected on the basis of evolutionary or Darwinian theory. In short, he concludes that starvation cannibalism is not a manifestation of the chaotic, psychotic behavior of individuals who are driven to madness, but reveals underlying characteristics of evolved human beings. Lewis Petrinovich is professor emeritus in the Department of Psychology of the University of California, Riverside and is currently a resident of Berkeley, California.

The study of human reproductive ecology represents an important new development in human evolutionary biology. Its focus is on the physiology of human reproduction and evidence of adaptation, and hence the action of natural selection, in that domain. But at the same time the study of human reproductive ecology provides an important perspective on the historical process of human evolution, a lens through which we may view the forces that have shaped us as a species. In the end, all actions of natural selection can be reduced to variation in the reproductive success of individuals.Peter Ellison is one of the pioneers in the fast growing area of reproductive ecology. He has collected for this volume the research of thirty-one of the most active and influential scientists in the field. Thanks to recent noninvasive techniques, these contributors can present direct empirical data on the effect of a broad array of ecological, behavioral, and constitutional variables on the reproductive processes of humans as well as wild primates. Because biological evolution is cumulative, however, organisms in the present must be viewed as products of the selective forces of past environments. The study of adaptation thus often involves inferences about formative ecological relationships that may no longer exist, or not in the same form. Making such inferences depends on carefully weighing a broad range of evidence drawn from studies of contemporary ecological variation, comparative studies of related taxonomies, and paleontological and genetic evidence of evolutionary history. The result of this inquiry sheds light not only on the functional aspects of an organism's contemporary biology but also on its evolutionary history and the selective forces that have shaped it through time.Encompassing a range of viewpoints--controversy along with consensus--this far-ranging collection offers an indispensable guide for courses in biological anthropology, human biology, and primatology, along with demography, medicine, social anthropology, and public health.

In the vast anthropological literature devoted to hunter-gatherer societies, surprisingly little attention has been paid to the place of hunter-gatherer children. Children often represent 40 percent of hunter-gatherer populations, thus nearly half the population is omitted from most hunter-gatherer ethnographies and research. This volume is designed to bridge the gap in our understanding of the daily lives, knowledge, and development of hunter-gatherer children.The twenty-six contributors to Hunter-Gatherer Childhoods use three general but complementary theoretical approaches--evolutionary, developmental, cultural--in their presentations of new and insightful ethnographic data. For instance, the authors employ these theoretical orientations to provide the first systematic studies of hunter-gatherer children's hunting, play, infant care by children, weaning and expressions of grief. The chapters focus on understanding the daily life experiences of children, and their views and feelings about their lives and cultural change. Chapters address some of the following questions: why does childhood exist, who cares for hunter-gatherer children, what are the characteristic features of hunter-gatherer children's development and what are the impacts of culture change on hunter-gatherer child care?The book is divided into five parts. The first section provides historical, theoretical and conceptual framework for the volume; the second section examines data to test competing hypotheses regarding why childhood is particularly long in humans; the third section expands on the second section by looking at who cares for hunter-gatherer children; the fourth section explores several developmental issues such as weaning, play and loss of loved ones; and, the final section examines the impact of sedentism and schools on hunter-gatherer children.This pioneering volume will help to stimulate further research and scholarship on hunter-gatherer childhoods, thereby advancing our understanding of the way of life that characterized most of human history and of the processes that may have shaped both human development and human evolution.

In the vast anthropological literature devoted to hunter-gatherer societies, surprisingly little attention has been paid to the place of hunter-gatherer children. Children often represent 40 percent of hunter-gatherer populations, thus nearly half the population is omitted from most hunter-gatherer ethnographies and research. This volume is designed to bridge the gap in our understanding of the daily lives, knowledge, and development of hunter-gatherer children.The twenty-six contributors to Hunter-Gatherer Childhoods use three general but complementary theoretical approaches--evolutionary, developmental, cultural--in their presentations of new and insightful ethnographic data. For instance, the authors employ these theoretical orientations to provide the first systematic studies of hunter-gatherer children's hunting, play, infant care by children, weaning and expressions of grief. The chapters focus on understanding the daily life experiences of children, and their views and feelings about their lives and cultural change. Chapters address some of the following questions: why does childhood exist, who cares for hunter-gatherer children, what are the characteristic features of hunter-gatherer children's development and what are the impacts of culture change on hunter-gatherer child care?The book is divided into five parts. The first section provides historical, theoretical and conceptual framework for the volume; the second section examines data to test competing hypotheses regarding why childhood is particularly long in humans; the third section expands on the second section by looking at who cares for hunter-gatherer children; the fourth section explores several developmental issues such as weaning, play and loss of loved ones; and, the final section examines the impact of sedentism and schools on hunter-gatherer children.This pioneering volume will help to stimulate further research and scholarship on hunter-gatherer childhoods, thereby advancing our understanding of the way of life that characterized most of human history and of the processes that may have shaped both human development and human evolution.

Those who have been privileged to watch baboons long enough to know them as individuals and who have learned to interpret some of their more subtle interactions will attest that the rapid flow of baboon behavior can at times be overwhelming. In fact, some of the most sophisticated and influential observation methods for sampling vertebrate social behavior grew out of baboon studies, invented by scientists who were trying to cope with the intricacies of baboon behavior. Barbara Smuts' eloquent study of baboons reveals a new depth to their behavior and extends the theories needed to account for it.While adhering to the most scrupulous methodological strictures, the author maintains an open research strategy--respecting her subjects by approaching them with the open mind of an ethnographer and immersing herself in the complexities of baboon social life before formulating her research design, allowing her to detect and document a new level of subtlety in their behavior. At the Gilgil site, described in this book, she could stroll and sit within a few feet of her subjects. By maintaining such proximity she was able to watch and listen to intimate exchanges within the troop; she was able, in other words, to shift the baboons well along the continuum from "subject" to "informant." By doing so she has illuminated new networks of special relationships in baboons. This empirical contribution accompanies theoretical insights that not only help to explain many of the inconsistencies of previous studies but also provide the foundation for a whole new dimension in the study of primate behavior: analysis oft he dynamics of long-term, intimate relationships and their evolutionary significance.At every stage of research human observers have underestimated the baboon. These intelligent, curious, emotional, and long-lived creatures are capable of employing stratagems and forming relationships that are not easily detected by traditional research methods. In the process of unraveling their complex social relationships, Smuts has revealed that these masters of strategy and aggressive competition are equally capable of patience, tenderness, and concern.

The Cannibal Within offers an evolutionary account of the propensity of human beings, in extreme circumstances to eat other human beings, despite the strong Western taboo against such practices. What sets this volume apart from the large body of literature on cannibalism, both popular and anthropological, is the underlying premise: cannibalism as an alternative to starvation is tacitly condoned by the same biological morality that would condemn cannibalism of other sorts in non-threatening situations. Deep as the taboos may be, the survival instinct runs even deeper. The title of the book reflects the author's belief that cannibalism is not a pathology that erupts in psychotic individuals, but is a universal adaptive strategy that is evolutionarily sound. The cannibal is within all of us, and cannibals are within all cultures, should the circumstances demand cannibalism's appearance and usage. Petrinovich's work is rich in historical detail, and rises to a level of theoretical sophistication in addressing a subject too often dealt with in sensationalist terms. The major instances in which survival cannibalism has occurred convinced the author that there is a consistent pattern and a uniform regularity of order in which different kinds of individuals are consumed. In considering who eats whom, when, and under what circumstances, this regularity appears, and it is consistent with what would be expected on the basis of evolutionary or Darwinian theory. In short, he concludes that starvation cannibalism is not a manifestation of the chaotic, psychotic behavior of individuals who are driven to madness, but reveals underlying characteristics of evolved human beings. Lewis Petrinovich is professor emeritus in the Department of Psychology of the University of California, Riverside and is currently a resident of Berkeley, California.