Previous experimental research has suggested that chimpanzees may understand some of the epitemological aspects of visual perception, such as how the perceptual act of seeing can have internal mental consequences for an individual's state of knowledge. Other research suggests that chimpanzees and other nonhuman primates may understand visual perception at a simpler level; that is, they may at least understand seeing as a mental event that subjectively anchors organisms to the external world. However, these results are ambiguous and are open to several interpretations. In this Monograph, we report the results of 15 studies that were conducted with chimpanzees and preschool children to explore their knowledge about visual perception.

Wolfgang Koehler demonstrated that chimpanzees could solve problems by applying insight. His research showed that the intellectual gap between humans and chimpanzees was much narrower than previously thought. The work was revolutionary when originally published in 1917 in German, but it was largely ignored for decades because it violated the conventional wisdom that animal behavior is simply the result of instinct or conditioning. However, Koehler's research showed this was not the case. He used four chimps in his experiments, Chica, Grande, Konsul, and Sultan. The experiments consisted of placing chimpanzees in an enclosed area and presenting them with a desired object that was out of reach. In one experiment, Koehler placed bananas outside Sultan's cage and two bamboo sticks inside his cage which needed to be put together to reach the bananas. Koehler demonstrated the solution to Sultan by putting his fingers into the end of one of the sticks. After some contemplation, Sultan put the two sticks together and was able to reach the bananas. As Jaan Valsiner shows in his introduction to this classic work, Koehler's analysis of the intelligence of apes marked a turning point in the psychology of thinking and the continuing struggle between behaviorism and cognitive psychology. Koehler achieved his two-fold aim: to determine the relationship between the intellectual capacity of higher primates and man, and to gain insight into the nature of intelligent acts.

Since 2013, an organization called the Nonhuman Rights Project has brought before the New York State courts an unusual request-asking for habeas corpus hearings to determine whether Kiko and Tommy, two captive chimpanzees, should be considered legal persons with the fundamental right to bodily liberty. While the courts have agreed that chimpanzees share emotional, behavioural, and cognitive similarities with humans, they have denied that chimpanzees are persons on superficial and sometimes conflicting grounds. Consequently, Kiko and Tommy remain confined as legal "things" with no rights. The major moral and legal question remains unanswered: are chimpanzees mere "things", as the law currently sees them, or can they be "persons" possessing fundamental rights? In Chimpanzee Rights: The Philosophers' Brief, a group of renowned philosophers considers these questions. Carefully and clearly, they examine the four lines of reasoning the courts have used to deny chimpanzee personhood: species, contract, community, and capacities. None of these, they argue, merits disqualifying chimpanzees from personhood. The authors conclude that when judges face the choice between seeing Kiko and Tommy as things and seeing them as persons-the only options under current law-they should conclude that Kiko and Tommy are persons who should therefore be protected from unlawful confinement "in keeping with the best philosophical standards of rational judgment and ethical standards of justice." Chimpanzee Rights: The Philosophers' Brief-an extended version of the amicus brief submitted to the New York Court of Appeals in Kiko's and Tommy's cases-goes to the heart of fundamental issues concerning animal rights, personhood, and the question of human and nonhuman nature. It is essential reading for anyone interested in these issues.

In Decolonizing Extinction Juno Salazar Parrenas ethnographically traces the ways in which colonialism, decolonization, and indigeneity shape relations that form more-than-human worlds at orangutan rehabilitation centers on Borneo. Parrenas tells the interweaving stories of wildlife workers and the centers' endangered animals while demonstrating the inseparability of risk and futurity from orangutan care. Drawing on anthropology, primatology, Southeast Asian history, gender studies, queer theory, and science and technology studies, Parrenas suggests that examining workers' care for these semi-wild apes can serve as a basis for cultivating mutual but unequal vulnerability in an era of annihilation. Only by considering rehabilitation from perspectives thus far ignored, Parrenas contends, could conservation biology turn away from ultimately violent investments in population growth and embrace a feminist sense of welfare, even if it means experiencing loss and pain.

All humans share certain components of tooth structure, but show variation in size and morphology around this shared pattern. This book presents a worldwide synthesis of the global variation in tooth morphology in recent populations. Research has advanced on many fronts since the publication of the first edition, which has become a seminal work on the subject. This revised and updated edition introduces new ideas in dental genetics and ontogeny and summarizes major historical problems addressed by dental morphology. The detailed descriptions of 29 dental variables are fully updated with current data and include details of a new web-based application for using crown and root morphology to evaluate ancestry in forensic cases. A new chapter describes what constitutes a modern human dentition in the context of the hominin fossil record.

The Neotropics contains the greatest abundance and diversity of primate species of any bio-region in the world. They make up an impressive and varied assemblage of species, from the small pigmy marmoset weighing one hundred grams, to the woolly spider monkey tipping the scale at 10-14 kg. Some in the group, such as the bearded capuchin, show signs of high intelligence evidenced by their use of primitive tools to open nuts and fruit, and many of these species are flagships whose very presence is crucial for the dispersal of seeds and maintenance of primary forests. Unfortunately, a large percentage of Neotropical primate species are threatened or endangered due to various anthropogenic activities including deforestation, illegal hunting, illegal wildlife trade, mining, and road construction. Moreover, there is a general paucity of data of this group because their habitats can be difficult to access and the sheer expansiveness of the Neotropical area. In this book, the authors present new research findings from sixty of the worlds leading Neotropical primate scientists in order to bridge this information gap. Specifically, the authors provide up-to-date biological, molecular, conservation, and phylogenic information on many of these poorly understood, yet amazing creatures. It is the authors intention that this new information will be used as a resource by the novice and professional alike in order to improve societys understanding of Neotropical primates and to help protect them long into the future.

The theme of this book is our primate biology, or who we are as a continuum of our animal ancestors. Professor Sharpes first uses comparative animal studies and recent finds in archaeology to outline this argument and theme, and thus provides evidence for human animal origins. He then reveals how our emotions and behaviors influence our lives as demonstrated through the major social sciences - the philosophy of our cognitive functioning, our psychology, and our religious beliefs as consumers (the economy), as national citizens (political science, government), and as world citizens (climate change). The idea is to examine the human condition from more than one discipline, and to synthesise research studies that analyse human behavior that is socially similar to other primate behavior. What makes this book unique is its interdisciplinary investigation of human primates from the variety of the social sciences. He has conducted similar research in two previous books, The Evolution of the Social Sciences (2009) and Outcast and Heretics, Profiles in Independent Thought and Courage (2007). The target audience is the articulate and literate community in the broad field of the social sciences, a book appropriate for a general audience, and students in all the social science specialties, including interdisciplinary studies such as courses in evolution, climate change, politics, anthropology, psychology and the life sciences.

The effects of the bone morphogenetic proteins (BMPs) family on bone formation are well documented, but the transforming growth factor (TGF)-beta ( ) isoforms are much less studied. The product of 20 years of study, Induction of Bone Formation in Primates: The Transforming Growth Factor- 3 sums up editor Ugo Ripamonti's research into the osteogenic activity of the three mammalian TGF- isoforms, particularly in primates. It explores how the mammalian TGF- isoforms have the potential to shed light on the apparent redundancy of bone induction signaling. The book unearths the profound and important bone inductive activity of the TGF- 3 isoform. It includes accounts of extensive research in non-human primates from craniofacial tissue regeneration, heterotopic tissue induction, and chapters on periodontal tissue regeneration and synergistic induction of bone formation. It also discusses the future clinical role of the TGF- isoform, including in human studies. This book contributes to the fascinating history of BMP and TGF- research at the intersection of molecular biology, tissue induction, bone regeneration, and craniofacial surgery. It provides a revolutionary awakening to new possibilities in skeletal reconstruction, tissue engineering, and molecular and cellular biology.

Primatology draws on theory and methods from diverse fields, including anatomy, anthropology, biology, ecology, medicine, psychology, veterinary sciences and zoology. The more than 500 species of primate range from tiny mouse lemurs to huge gorillas, and primatologists collect data in a variety of environments including in the field, research facilities, museums, sanctuaries, zoos, and from the literature. The variability in research interests, study animals and research sites means that there are no standard protocols for how to study primates. Nevertheless, asking good questions and designing appropriate studies to answer them are vital to produce high quality science. This accessible guide for graduate students and post-doctoral researchers explains how to develop a research question, formulate testable hypotheses and predictions, design and conduct a project and report the results. The focus is on research integrity and ethics throughout, and the book provides practical advice on overcoming common difficulties researchers face.

The first photographic and descriptive musculoskeletal atlas of a baby gorilla, this book details the comparative and phylogenetic context of the gross anatomy and evolutionary history of the soft tissue morphology of modern humans and one of their closest relatives. With detailed high-quality photographs of musculoskeletal structures, it provides an updated review of the anatomical variations within gorillas as well as an extensive list of the synonyms used in the literature to designate the structures discussed. It will be of interest to students, teachers, and researchers studying primatology, comparative anatomy, functional morphology, zoology, and physical anthropology.

Although much is known about the anatomy of adult primates, particularly chimpanzees, the same cannot be said for the anatomy of young primates, especially non-hominoid primates such as lemurs and marmosets. This is the first book dedicated to newborn skeletal and dental anatomy and how it varies across primate species, which is important for interpreting adult primate skeletal form, as well as for comprehending primate and human evolution. Structured according to anatomical regions, the book includes hundreds of detailed anatomical illustrations, a color atlas illustrating entire skeletons in representative taxa, and boxes at the end of each chapter providing further detail on key aspects covered in the main text. Whilst the book is primarily a guide to comparative anatomy, it also highlights the links between development and behavior. An indispensable resource for students and researchers in the fields of biological anthropology, anatomy, primatology, growth and development, dental biology, and veterinary medicine.

The inspiration for the film The Dark Divide starring David Cross and Debra Messing, one of America's most esteemed natural history writers takes to the hills in search of Bigfoot-and finds the wildness within ourselves. Awarded a Guggenheim Fellowship to investigate the legends of Sasquatch, Yale-trained ecologist Dr. Robert Pyle treks into the unprotected wilderness of the Dark Divide near Mount St. Helens, where he discovers both a giant fossil footprint and recent tracks. On the trail of what he thought was legend, he searches out Indians who tell him of an outcast tribe, the Seeahtiks, who had not fully evolved into humans. A handful of open-minded biologists and anthropologists counter the tabloids Pyle studies, while rogue Forest Service employees and loggers swear of a vast conspiracy to deep-six true stories of unknown, upright hominoid apes among us. He attends Sasquatch Daze, where he meets scientists, hunters, and others who have devoted their lives to the search, only to realize that "these guys don't want to find Bigfoot they want to be Bigfoot!" Since its original publication, the author's fresh experiences and finds have been added to his original work through an updated chapter. With an evaluation of recent DNA evidence from Bigfoot hair and scat, the study of speech phonemes in the "Sierra Sounds" purported Bigfoot recordings, an examination of the impact of the wildly popular Animal Planet series Bigfoot Hunters, the reemergence of the famous Bob Gimlin into the Bigfoot community, and more, Walking With Bigfoot keeps every Bigfoot enthusiast's mind wide open to one of the biggest questions in the land and brings Pyle's work on the "legend" of Bigfoot into the new century.

In this remarkable volume, Dr. Jean-Paul Debenat, a professor of comparative literature (University of Nantes, France) with a flair for anthropology, takes us far beyond the realm of documented research on the Sasquatch / Bigfoot phenomenon. His extensive travels in North America, skilful investigations, and years of research on the 'wild man' throughout world history have resulted in this highly authoritative work. Dr Debenat's handling of the subject is both unique and exciting, as well as being highly factual. Rather than a simple presentation of facts and findings, we are taken to the very 'heart' of the matter with meaningful insights and knowledgeable interpretations - one experiences the full spectrum of learning, including emotion. Originally published in French, the work has been translated, modified, and enhanced for the English-speaking public. It is a classic work that will intrigue readers in all walks of life.

Primate Sexuality provides an authoritative and comprehensive synthesis of current research on the evolution and physiological control of sexual behaviour in the primates - prosimians, monkeys, apes, and human beings. This new edition has been fully updated and greatly expanded throughout to incorporate a decade of new research findings. It maintains the depth and scientific rigour of the first edition, and includes a new chapter on human sexuality, written from a comparative perspective. It contains 2600 references, almost 400 figures and photographs, and 73 tables.

Primate Sexuality provides an authoritative and comprehensive synthesis of current research on the evolution and physiological control of sexual behaviour in the primates - prosimians, monkeys, apes, and human beings. This new edition has been fully updated and greatly expanded throughout to incorporate a decade of new research findings. It maintains the depth and scientific rigour of the first edition, and includes a new chapter on human sexuality, written from a comparative perspective. It contains 2600 references, almost 400 figures and photographs, and 73 tables.

Based on field studies spanning nearly 40 years, this reference book summarizes and integrates past research with new and previously unpublished information on the behavioral ecology of Africa's red colobus monkeys from study sites as diverse as Senegal, Uganda and Zanzibar. It provides an unparalleled compilation of information on taxonomy, genetics, vocalizations, demography, social organization, dispersal, social behavior, reproduction, mortality factors, diet, ranging patterns, interspecific relations, and conservation. Social relationships in red colobus are less rigidly structured than in other African monkeys, resulting in considerable variation in social organization and group composition, both within and between taxa. This provides a unique opportunity to examine the extent to which social variables correlate with differences in habitat quality, demography, and predation by chimpanzees and humans. Unfortunately, at least half of the 18 taxa of red colobus are now threatened with extinction. Conservation problems are described, causal factors identified, and solutions proposed. This volume is intended not only to serve as a reference book, but to stimulate and guide future long-term research and to encourage effective conservation action.

This book describes one of our closest relatives, the orangutan, and the only extant great ape in Asia. It is increasingly clear that orangutan populations show extensive variation in behavioural ecology, morphology, life history, and genes. Indeed, on the strength of the latest genetic and morphological evidence, it has been proposed that orangutans actually constitute two species which diverged more than a million years ago - one on the island of Sumatra the other on Borneo, with the latter comprising three subspecies.
This book has two main aims. The first is to carefully compare data from every orangutan research site, examining the differences and similarities between orangutan species, subspecies, and populations. The second is to develop a theoretical framework in which these differences and similarities can be explained. To achieve these goals the editors have assembled the world's leading orangutan experts to rigorously synthesize and compare the data, quantify the similarities or differences, and seek to explain them.
Orangutans is the first synthesis of orangutan biology to adopt this novel, comparative approach. It analyses and compares the latest data, developing a theoretical framework to explain morphological, life history, and behavioural variation. Intriguingly, not all behavioural differences can be attributed to ecological variation between and within the two islands; relative rates of social learning also appear to have been influential. The book also emphasizes the crucial impact of human settlement on orangutans and looks ahead to the future prospects for the survival of critically endangered natural populations.

This book describes one of our closest relatives, the orangutan, and the only extant great ape in Asia. It is increasingly clear that orangutan populations show extensive variation in behavioral ecology, morphology, life history, and genes. Indeed, on the strength of the latest genetic and morphological evidence, it has been proposed that orangutans actually constitute two species which diverged more than a million years ago - one on the island of Sumatra the other on Borneo, with the latter comprising three subspecies.
This book has two main aims. The first is to carefully compare data from every orangutan research site, examining the differences and similarities between orangutan species, subspecies and populations. The second is to develop a theoretical framework in which these differences and similarities can be explained. To achieve these goals the editors have assembled the world's leading orangutan experts to rigorously synthesize and compare the data, quantify the similarities or differences, and seek to explain them.
Orangutans is the first synthesis of orangutan biology to adopt this novel, comparative approach. It analyses and compares the latest data, developing a theoretical framework to explain morphological, life history, and behavioral variation. Intriguingly, not all behavioral differences can be attributed to ecological variation between and within the two islands; relative rates of social learning also appear to have been influential. The book also emphasizes the crucial impact of human settlement on orangutans and looks ahead to the future prospects for the survival of critically endangered natural populations.

What can the study of young monkeys and apes tell us about the minds of young humans? In this fascinating introduction to the study of primate minds, Juan Carlos Gomez identifies evolutionary resemblances--and differences--between human children and other primates. He argues that primate minds are best understood not as fixed collections of specialized cognitive capacities, but more dynamically, as a range of abilities that can surpass their original adaptations.

In a lively overview of a distinguished body of cognitive developmental research among nonhuman primates, Gomez looks at knowledge of the physical world, causal reasoning (including the chimpanzee-like errors that human children make), and the contentious subjects of ape language, theory of mind, and imitation. Attempts to teach language to chimpanzees, as well as studies of the quality of some primate vocal communication in the wild, make a powerful case that primates have a natural capacity for relatively sophisticated communication, and considerable power to learn when humans teach them.

Gomez concludes that for all cognitive psychology's interest in perception, information-processing, and reasoning, some essential functions of mental life are based on ideas that cannot be explicitly articulated. Nonhuman and human primates alike rely on implicit knowledge. Studying nonhuman primates helps us to understand this perplexing aspect of all primate minds.

Chimpanzees fascinate people for many reasons. We are struck by the apes' resemblance to humanity, as seen in their use of tools and their complex social lives, and we are moved by the threats that human activity poses to them. Our awareness of our closest living relatives testifies to the efforts of the remarkable people who study these creatures and work to protect them. What motivates someone to dedicate their lives to chimpanzees? How does that reflect on our own species? This book brings together a range of chimpanzee experts who tell powerful personal stories about their lives and careers. It features some of the world's preeminent primatologists-including Jane Goodall and Frans de Waal-as well as representatives of a new generation from varied backgrounds. In addition to field scientists, the book features anthropologists, biologists, psychologists, veterinarians, conservationists, and the director of a chimpanzee sanctuary. Some grew up in the English countryside, others in villages in Congo; some first encountered chimpanzees in a zoo, others in the forests surrounding their homes. All are united by a common purpose: to study and understand chimpanzees in order to protect them in the wild and care for them in zoos and sanctuaries. Contributors share what inspired them, what shaped their career choices, and what motivates them to strive for solutions to the many challenges that chimpanzees face today.

Current dominant thinking and practice in the private and public sectors asserts that peoples' development needs are in conflict with, or mutually exclusive to, the need to conserve the biosphere on which we depend. Consequently, we are asked to either diminish development in the name of conservation or diminish conservation in the name of development. Efforts to identify complementary objectives, or mutually acceptable trade-offs and compromises indicate, however, that this does not always have to be the case. This first volume in the State of the Apes series draws attention to the evolving context within which great ape and gibbon habitats are increasingly interfacing with extractive industries. Intended for a broad range of policy makers, industry experts, decision makers, academics, researchers and NGOs, these publications aim to influence debate, practice and policy, seeking to reconcile ape conservation and welfare, and economic and social development, through objective and rigorous analysis.

In 1953 a young female Japanese macaque called Imo began washing sweet potatoes before eating them, presumably to remove dirt and sand grains. Soon other monkeys had adopted this behaviour, and potato-washing gradually spread throughout the troop. When, three years after her first invention, Imo devised a second novel foraging behaviour, that of separating wheat from sand by throwing mixed handfuls into water and scooping out the floating grains, she was almost instantly heralded around the world as a 'monkey genius'. Imo is probably the most celebrated of animal innovators. In fact, many animals will invent new behaviour patterns, adjust established behaviours to a novel context, or respond to stresses in an appropriate and novel manner.

Innovation is an important component of behavioural flexibility, vital to the survival of individuals in species with generalist or opportunistic lifestyles, and potentially of critical importance to those endangered or threatened species forced to adjust to changed or impoverished environments. Innovation may also have played a central role in avian and primate brain evolution. Yet until recently animal innovation has been subject to almost complete neglect by behavioural biologists, psychologists, social learning researchers, and conservation-minded biologists.

This collection of stimulating and readable articles by leading scientific authorities is the first ever book on 'animal innovation', designed to put the topic of animal innovation on the map and heighten awareness of this developing field.

This seminal work chronicles George B. Schaller's two years of travel and observation of gorillas in East and Central Africa in the late 1950s, high in the Virunga volcanoes on the Zaire-Rwanda-Uganda border. There, he learned that these majestic animals, far from being the aggressive apes of film and fiction, form close-knit societies of caring mothers and protective fathers watching over playful young. Alongside his observations of gorilla society, Schaller celebrates the enforced yet splendid solitude of the naturalist, recounts the adventures he experienced along the way, and offers a warning against poaching and other human threats against these endangered creatures. This edition features a postscript detailing Schaller's more recent visits with gorillas, current to 2009.

"Whether the author is tracking gorillas, slipping past elephant herds on narrow jungle paths, avoiding poachers' deadfalls, or routing Watusi invaders, this is an exciting book. Although Schaller feels that this is 'not an adventure book, ' few readers will be able to agree."--Irven DeVore, "Science"