Spider monkeys are one of the most widespread New World primate genera, ranging from southern Mexico to Bolivia. Although they are common in zoos, spider monkeys are traditionally very difficult to study in the wild, because they are fast moving, live high in the canopy and are almost always found in small subgroups that vary in size and composition throughout the day. The past decade has seen an expansion in research being carried out on this genus and this book is an assimilation of both published and previously unpublished research. It is a comprehensive source of information for academic researchers and graduate students interested in primatology, evolutionary anthropology and behavioral ecology and covers topics such as taxonomy, diet, sexuality and reproduction, and conservation.

Gorillas are one of our closest living relatives, the largest of all living primates, and teeter on the brink of extinction. These fascinating animals are the focus of this in-depth and comprehensive examination of gorilla biology. Gorilla Biology combines recent research in morphology, genetics and behavioural ecology to reveal the complexity and diversity of gorilla populations. The first section focuses on morphological and molecular variation and underscores the importance of understanding diverse biological patterns at all levels in testing evolutionary and adaptive hypotheses and elucidating subspecies and species diversification. Following are discussions of the ecological constraints that influence gorilla social organization and highlight their surprising flexibility. The book ends with discussions of the conservation status of gorillas and the many and increasing threats to their continued survival. Giving insight into the evolutionary biology of these unique primates, this book will be essential reading for primatologists, anthropologists and evolutionary biologists.

From an evolutionary perspective, understanding chimpanzees offers a way of understanding the basis of human nature. This book on cognitive development in chimpanzees is the first of its kind to focus on infants reared by their own mothers within a natural setting, illustrating various aspects of chimpanzee cognition and the developmental changes accompanying them. The subjects are chimpanzees of three generations inhabiting an enriched environment, as well as a wild community in West Africa. There is a foreword by Jane Goodall and 26 color photos of chimpanzees in the laboratory and in the field in West Africa are included.

We have long attributed man's violent, aggressive, competitive nature to his animal ancestry. But what if we are just as given to cooperation, empathy and morality by virtue of our genes? From a scientist and writer whom E. O. Wilson has called 'the world authority on primate social behavior' comes a lively look at the most provocative aspects of human nature - power, sex, violence, kindness, and morality - through our two closest cousins in the ape family. For nearly twenty years, Frans de Waal has worked with both the famously aggressive chimpanzee and the lesser-known egalitarian, erotic, matriarchal bonobo, two species whose DNA is nearly identical to that of humans. He brings these apes to life on every page, revealing their personalities, relationships and power struggles, creating an engrossing narrative that explores what their behaviour can teach us about ourselves and each other.

Research on the mental abilities of chimpanzees and bonobos has been widely celebrated and used in reconstructions of human evolution. In contrast, less attention has been paid to the abilities of gorillas and orangutans. This 1999 volume aims to help complete the picture of hominoid cognition by bringing together the work on gorillas and orangutans and setting it in comparative perspective. The introductory chapters set the evolutionary context for comparing cognition in gorillas and orangutans to that of chimpanzees, bonobos and humans. The remaining chapters focus primarily on the kinds and levels of intelligence displayed by orangutans and gorillas compared to other great apes, including performances in the classic domains of tool use and tool making, imitation, self-awareness, social communication and symbol use. All those wanting more information on the mental abilities of these sometimes neglected, but important primates will find this book a treasure trove.

Old World monkeys (Cercopithecoidea) are the most successful and diverse group of living non-human primates in terms of the number of species, behavioural repertoires and ecology. They have much to teach us about the processes of evolution and the principles of ecology, and are among our closest living relatives. This volume presents a broad, technical account of cercopithecoid biology including molecular, behavioural and morphological approaches to phylogeny, population structure, allometry, fossil history, functional morphology, ecology, cognitive capabilities, social behaviour and conservation. It will be the definitive reference on this group for professionals and graduate students in primatology, animal behaviour, paleontology, morphology, systematics and physical anthropology, but will also be useful to senior undergraduates.

Primate and Human Evolution provides a synthesis of the evolution and adaptive significance of human anatomical, physiological and behavioral traits. Using paleontology and modern human variation and biology, it compares hominid traits to those of other catarrhine primates both living and extinct, presenting a new hominization model that does not depend solely on global climate change, but on predictable trends observed in catarrhines. Dealing with the origins of hominid tool use and tool manufacture, it compares tool behavior in other animals and incorporates information from the earliest archaeological record. Examining the use of non-human primates and other mammals in modeling the origins of early human social behavior, Susan Cachel argues that human intelligence does not arise from complex social interactions, but from attentiveness to the natural world. This book will be a rich source of inspiration for all those interested in the evolution of all primates, including ourselves.

The genus Macaca is the most widely distributed of non-human primates. All macaque species, except the North African Barbary macaque, are found in 20 countries in the South-East Asia region. Fossil evidence suggests that, in the Pleistocene period, the macaques were more widespread, living throughout most of Eurasia and northern Africa, but they have now disappeared between North Africa and South-East Asia. Over the comparatively short time span of 5 million years, macaques have evolved diverse forms, from long tailed arboreal types to robust terrestrial animals, and live in a variety of habitats. Studies of this group will give us important insights into the speciation process in a radiating group of non-human primates. Although macaques are probably one of the most studied cercopithecine monkeys both in the wild and in captivity, data from long-term studies and pioneering work of little-known species are only just emerging. In this book, world authorities on macaques interpret recent research and present up-to-date syntheses of many aspects of macaque ecology, evolution, behaviour and conservation. This book will prove to be the definitive synthesis of the subject for all those interested in this fascinating group of monkeys for many years to come.

For the past three decades the mountain gorillas of Karisoke Research Center have been the subject of many studies focusing on their behaviour and ecology. Long-term observations on known individuals, from birth to death, and data on social behaviour within and between groups have led to an understanding of many aspects of gorilla social structure. The findings have made significant contributions to models of comparative primate behavioural ecology. Mountain gorillas have also been the focus of intense conservation efforts, which have become a model for conservation programs elsewhere. While most research has focused on mountain gorillas, data on the other two recognised subspecies have increased over the past twenty years. This book highlights and summarises some of the behavioural, ecological and conservation work on mountain gorillas, and makes comparisons with findings from other study sites. It represents the most up-to-date and diverse collection of information available on this endangered ape.

This unique volume provides a comprehensive and up-to-date examination of all aspects of the biology of the Old World monkey genus, Theropithecus, which evolved alongside our human ancestors. The authors explore the fossil history and evolution of the genus, its biogeography, comparative evolutionary biology and anatomy, and the behaviour and socioecology of the living and extinct representatives of the genus. The parallels between the evolution of Theropithecus and early hominids are discussed. There are also two chapters of particular significance which describe how an innovative and exciting approach to the modelling of the causes of species extinction can be used with great success. This highly multidisciplinary approach provides a rare and insightful account of the evolutionary biology of this fascinating and once highly successful group of primates. Theropithecus will be of interest to researchers in the fields of primatology, anthropology, palaeontology, and mammalian behaviour, physiology and anatomy.

The Metaphysics of Apes, first published in 2005, traces the discovery and interpretation of the human-like great apes and the ape-like earliest ancestors of present-day humans. It shows how, from the days of Linnaeus to recent research, the sacred and taboo-ridden animal-human boundary was time and again challenged and adjusted. The unique dignity of humans, a central idea and value in the West, was, and to some extent still is, centrally on the minds of taxonomists, ethnologists, primatologists, and archaeologists. It has guided their research to a considerable extent. The basic presupposition was that humans are not entirely part of nature but, as symbolizing minds and as moral persons, transcend nature. This book was the first to offer an anthropological analysis of the burgeoning anthropological disciplines in terms of their own cultural taboos and philosophical preconceptions.

Shaping Primate Evolution is an edited collection of state-of-the-art papers about how biological form is described in primate biology, and the consequences of form for function and behavior. The contributors are highly regarded internationally recognized scholars in the field of quantitative primate evolutionary morphology. Each chapter elaborates upon the analysis of the form-function-behavior triad in a unique and compelling way. This book is distinctive not only in the diversity of the topics discussed, but also in the range of levels of biological organization that are addressed from cellular morphometrics to the evolution of primate ecology. The book is dedicated to Charles E. Oxnard, whose influential pioneering work on innovative metric and analytic techniques has gone hand-in-hand with meticulous comparative functional analyses of primate anatomy. Through the marriage of theory with analytical applications, this volume will be an important reference work for all those interested in primate functional morphology.

Chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) are the only two species of the genus Pan, and are humans' nearest relatives. This book is an extensive review of the most recent observations from field studies on the diversity of Pan social behavior, with contributions from many of the world's leading experts. A wide range of social behavior is discussed including tool use, hunting, reproductive strategies, conflict management, demographic variables and ecological constraints. In addition to interspecies behavioral diversity, this text describes exciting new research into variations between different populations of the same species.

New information about disease transmission, dietary and economic linkage, and the continuing international focus on conservation and primate research have created a surge of interest in primates, and focus on the diverse interaction of human and nonhuman primates has become an important component in primatological and ethnographic studies. By examining the diverse and fascinating range of relationships between humans and other primates and observing how this plays a critical role in conservation practice and programs, Primates Face to Face disseminates the information gained from the anthropological study of nonhuman primates to the wider academic and non-academic world.

Comparative studies have become both more frequent and more important as a means for understanding the biology, behavior, and evolution of mammals. Primates have complex social relationships and diverse ecologies, and represent a large species radiation. This book draws together a wide range of experts from diverse fields, such as reproductive biology and foraging energetics, to place recent field research into a synthetic perspective. The chapters tackle controversial issues in primate biology and behavior, including the role of brain expansion and infanticide in the evolution of primate behavioral strategies. The volume also presents an overview of comparative methodologies as applied to recent primate research.

Infanticide by males is relatively common in primates, carnivores, and rodents, although it tends to be rare even in species in which it occurs. Is this behavior pathological or accidental, or does it reflect a conditional reproductive strategy for males in certain circumstances? In this book, case studies and reviews confirm the adaptive nature of infanticide by males in primates, and help to predict which species should be vulnerable to this phenomenon. Much of the book is devoted to exploring the evolutionary consequences of the threat of infanticide by males for social and reproductive behavior and physiology. Written for graduate students and researchers in animal behavior, behavioral ecology, biological anthropology, and social psychology, this book shows that social systems are shaped by ecological pressures, as well as social pressures such as infanticide risk.

Research on the mental abilities of chimpanzees and bonobos has been widely celebrated and used in reconstructions of human evolution. In contrast, scant attention has been paid to the abilities of gorillas and orangutans. This volume aims to complete the picture of hominoid cognition by bringing together the work on gorillas and orangutans and setting it in comparative perspective. This book's introductory chapters set the evolutionary context for comparing cognition in gorillas and orangutans to that of chimpanzees, bonobos, and humans. The remaining chapters focus primarily on the kinds and levels of intelligence displayed by orangutans and gorillas compared to other great apes, including performances in the classic domains of tool use and tool making, imitation, self awareness, social communication, and symbol use.

Our ability to 'think' is really one of our most puzzling characteristics. What it would be like to be unable to think? What would it be like to lack self-awareness? The complexity of this activity is striking. 'Thinking' involves the interaction of a range of mental processes--attention, emotion, memory, planning, self-consciousness, free will, and language. So where did these processes arise? What evolutionary advantages were bestowed upon those with an ability to deceive, to plan, to empathize, or to understand the intention of others? In this compelling new work, Peter Gardenfors embarks on an evolutionary detective story to try and solve one of the big mysteries surrounding human existence--how has the modern human being's way of thinking come into existence. He starts by taking in turn the more basic cognitive processes, such as attention and memory, then builds upon these to explore more complex behaviors, such as self-consciousness, mindreading, and imitation. Having done this, he examines the consequences of "putting thought into the world" -i.e., using external media like cave paintings, drawings, and writing. Immensely readable and humorous, the book will be valuable for students in psychology and biology, and accessible to readers of popular science.

In this book, field and laboratory researchers show that the Great Apes are capable of thinking at symbolic levels, traditionally considered uniquely human. They show these high-level abilities in both social and ecological domains, including tool use, imitation, pretense, self-awareness, deception, consolation, teaching and proto-culture itself. Here, contributors emphasize the mechanisms involved in building these abilities--especially the lengthy developmental and "enculturation" processes--suggesting changes to current views on how primate and human intelligence have evolved. Researchers and professionals in the fields of primatology, animal behavior, anthropology, linguistics, and cognitive psychology will find much useful information in this book.

Unlike humans, who came down from the trees and developed bipedal locomotion, chimpanzees have remained in the original habitat of our ancestors: the tropical rainforests of Africa.
In this book, Vernon Reynolds describes in detail the work of a large number of students and senior researchers on the wild chimpanzees of the Budongo Forest Reserve in Western Uganda. He presents a coherent and in-depth account of one chimpanzee community of more than 60 individuals living in the Sonso area in the middle of the Budongo Forest, which he and his colleagues have studied intensively over the last 15 years. The chimpanzees have never been provisioned and live in an entirely natural state. Reynolds describes their forest habitat, their diet and culture, their social organization and behavior, their diseases, and the threats to them that derive from the actions of people in the surrounding villages, the most serious of these being the presence of snares set by hunters to catch small antelopes and pigs.
As founder and head of the Budongo Forest Project, Professor Reynolds has been responsible for compiling the numerous publications, reports, and dissertations written about these chimpanzees. In this book, he combines these new and often unpublished studies with past publications about Budongo Forest. Where appropriate, he also compares the Budongo chimpanzees with wild chimpanzees studied at other sites across Africa. The result is the most comprehensive account of the Budongo chimpanzees ever published, with a wealth of referenced material that will serve as a source of information for many years to come.

How can the intelligence of monkeys and apes, and the huge brain expansion which marked human evolution be explained? In 1988, Machiavellian Intelligence was the first book to assemble the early evidence suggesting a new answer: that the evolution of intellect was primarily driven by selection for manipulative, social expertise within groups where the most challenging problem faced by individuals was dealing with their companions. Since then a wealth of new information and ideas has accumulated. This new book will bring readers up to date with the most important developments, extending the scope of the original ideas and evaluating them empirically from different perspectives. It is essential reading for reseachers and students in many different branches of evolution and behavioural sciences, primatology, and philosophy.

What special qualities of mind set the great apes apart from other nonhuman primates, and indeed from ourselves? In this book, field and laboratory researchers show that the great apes have high level abilities in both social and ecological domains, including tool use, pretense, self-awareness, deception, consolation, teaching and culture itself. Great apes are also shown to be capable of thinking at symbolic levels, traditionally considered to be uniquely human. Here, the mechanisms involved in building these abilities - especially the lengthy developmental and 'enculturation' processes - are emphasized, showing how new discoveries are changing views on how primates and human intelligence evolved. This book is for anyone interested in current research and theoretical views of great ape cognition.

The genus Macaca is the most widely distributed of nonhuman primates and is found in twenty countries in Southeast Asia and North Africa. Over the comparative short time span of five million years, macaques have evolved diverse forms, from long-tailed arboreal types to robust terrestrial animals, and inhabit a variety of habitats. Although macaques are probably one of the most studied monkeys both in the wild and in captivity, data from long-term studies and pioneering work of little-known species are only just emerging. In this book, world authorities on macaques interpret recent research and present up-to-date syntheses of many aspects of macaque ecology, evolution, behavior and conservation.

Colobine monkeys have a unique digestive system, analogous to that of ruminants, which allows them to exploit foliage as a food source. This gives them a niche in Old World forests where they are often the only abundant medium-sized arboreal folivorous mammal. From a possible Miocene origin, Colobine monkeys have radiated into a wide variety of forms inhabiting a range of tropical woodlands in Africa and Asia. Most of the extant species have been subject to long term field studies, but until this book, no synthesis of work on this group has been available. The central theme is that of adaptive radiation, showing how the special features of Colobine anatomy interacted with a range of ecosystems to produce the distinctive species of today. The book also discusses parallels with other mammalian groups.

This collection of articles is completely and explicitly devoted to the new field of comparative developmental evolutionary psychology--that is, to studies of primate abilities based on frameworks drawn from developmental psychology and evolutionary biology. These frameworks include Piagetian and neo-Piagetian models as well as psycholinguistic ones. The articles in this collection--originating in Japan, Spain, Italy, France, Canada, and the United States--represent a variety of backgrounds in human and nonhuman primate research. The authors focus on such areas as the nature of culture, intelligence, language, and imitation; the differences among species in mental abilities and developmental patterns; and the evolution of life histories and of mental abilities and their neurological bases.