Primate Behavior: Developments in Field and Laboratory Research, Volume 1, was created to fill the need for a publication series which can provide a continuing arena of discourse for all those scientists of varying disciplines concerned with the behavior of primates. It is expected that the participants in this new serial publication and those who will find interest and value in the material it contains will be drawn from a wide array of scientific disciplines, including psychology, anthropology, zoology, psychiatry, physiology, pharmacology, veterinary medicine, and space technology. The present volume contains six chapters and begins with a review of the far-ranging literature on learning in the several species of anthropoids. The next three chapters review current knowledge regarding the various dimensions of abnormal behavior in primates; analyze the multidimensional concept of dominance; and detail the diversity and communality of behavior patterns in a number of tree shrew species. The final two chapters develop a conceptual approach toward and the empirical foundations of the study of social attachments in monkeys, and presents an extensive field study on the Nilgiri langur in South India, respectively.