Explores male number variation between and within primate species and its effects on male-female relationships.

Whatever their virtues, men are more violent than women. Why do men kill, rape, and wage war, and what can be done about it? Drawing on the latest discoveries about human evolution and about our closest living relatives, the great apes, "Demonic Males" offers some startling new answers to these questions.

This book presents extensive field research and analysis to evaluate sexual coercion in a range of species—including all of the great apes and humans—and to clarify its role in shaping social relationships among males, among females, and between the sexes.

The first and still the only book focused exclusively on juvenile primates, this collection presents original research covering all the major divisions of primates, from prosimians to humans. Contributors explore the evolutionary history of the juvenile stage in primates, differences in behavior between juvenile males and females, how juvenile behaviors act both to prepare juveniles for adulthood and to help them survive the juvenile stage, how juveniles learn about and participate in social conflict and dominance relationships, and the similarities and differences between development of juvenile human and nonhuman primates. This edition includes a new foreword and bibliography prepared by the editors. Contributors: Filippo Aureli, Bernard Chapais, Marina Cords, Carolyn M. Crockett, Frans B. M. de Waal, Carolyn Pope Edwards, Robert Fagen, Carole Gauthier, Paul H. Harvey, Charlotte K. Hemelrijk, Loek A. M. Herremans, Julia A. Horrocks, Wayne Hunte, Charles H. Janson, Nicholas Blurton Jones, Katharine Milton, Leanne T. Nash, Timothy G. O'Brien, Mark D. Pagel, Theresa R. Pope, Anne E. Pusey, Lal Singh Rajpurohit, John G. Robinson, Thelma Rowell, Daniel I. Rubenstein, Volker Sommer, Elisabeth H. M. Sterck, Karen B. Strier, Carel P. van Schaik, Maria A. van Noordwijk, David P. Watts, and Carol M. Worthman.

Longlisted for the PEN/E.O. Wilson Literary Science Writing Award "Every new book by Frans de Waal is a cause for excitement, and this one is no different. A breath of fresh air in the cramped debate about the differences between men and women. Fascinating, nuanced, and very timely." —Rutger Bregman, author of Humankind: A Hopeful History In Different, world-renowned primatologist Frans de Waal draws on decades of observation and studies of both human and animal behavior to argue that despite the linkage between gender and biological sex, biology does not automatically support the traditional gender roles in human societies. While humans and other primates do share some behavioral differences, biology offers no justification for existing gender inequalities. Using chimpanzees and bonobos to illustrate this point—two ape relatives that are genetically equally close to humans—de Waal challenges widely held beliefs about masculinity and femininity, and common assumptions about authority, leadership, cooperation, competition, filial bonds, and sexual behavior. Chimpanzees are male-dominated and violent, while bonobos are female-dominated and peaceful. In both species, political power needs to be distinguished from physical dominance. Power is not limited to the males, and both sexes show true leadership capacities. Different is a fresh and thought-provoking approach to the long-running debate about the balance between nature and nurture, and where sex and gender roles fit in. De Waal peppers his discussion with details from his own life—a Dutch childhood in a family of six boys, his marriage to a French woman with a different orientation toward gender, and decades of academic turf wars over outdated scientific theories that have proven hard to dislodge from public discourse. He discusses sexual orientation, gender identity, and the limitations of the gender binary, exceptions to which are also found in other primates. With humor, clarity, and compassion, Different seeks to broaden the conversation about human gender dynamics by promoting an inclusive model that embraces differences, rather than negating them.

Primate Sexuality is a uniquely comprehensive synthesis of our knowledge about the sexual behaviour of primates. In it, Alan Dixson reviews and integrates both the evolutionary biology and the physiological basis of sexual behaviour across the whole spectrum of primates, from prosimians tohumans. Covering almost every aspect of primate sexuality, the book begins with an analysis of the history of research into primate sexual behaviour. Several chapters discuss the complex array of mating systems exhibited by primates, and the bewildering range of tactics which influence sexualinteractions withing mating systems, and, ultimately, reproductive success. Sex selection, sperm competition, and the evolution of sexual dimorphism are explored. The book also reviews our current knowledge of the physiological aspects of sexuality, such as the sexual differentiation of the brain,hormonal mechanisms, the ovarian cycle, and the neuroendocrinal regulation of sexual behaviour. No other book written on the subject of primate sexuality exhibits such comparative breadth or technical depth. Dixson has been working on primates for almost 30 years, and has put together anoutstanding volume, drawing on and collating work spread across more than 2000 references. The work is illustrated throughout with hundreds of original drawings and figures. It will be welcomed by zoologists, anthropologists, and psychologists researching the sexual behaviour of primates, as well asby psychiatrists and clinicians with an interest in human sexuality.

This is the first history to be written of the early development of the U.S. Regional Primate Research Center Program. In this groundbreaking work, author Richard Dukelow shows that "the history is built around the characters of the men involved in the development of the program, rather than around each Primate Center." This focus on individuals allows the reader to gain a better understanding of the uniqueness of the program itself. Readers will benefit from the book's brief biographical approaches of the Directors. Directors from various Regional Centers are studied, including The University of Washington, Wisconsin, and California. Sections on "Early Negotiations" and epilogues are included in each biographical sketch. Dukelow's portrayal of scientific history makes The Alpha Males both intimate and rewarding. It will be of particular interest to those people in the fields of psychology and primatology, and those wanting to learn about the history of science or the development of national funded research programs.

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.

An introductory textbook comprising 34 essays written expressly for the volume by specialists in various topics and species. The first section surveys the species, the taxonomy, and their survival status; the second samples aspects of primate behavior, including the primate group, the life span, the