This book is an up-to-date compendium of knowledge on the secret language of close relationships, namely nonverbal routes of communication. In close relationships, as everyone learns sooner or later, the usefulness of words can be somewhat limited, because people (a) mean different things by the same words, (b) mean the same thing by different words, (c) sometimes find it hard to express their feelings in words, and (d) lie. Nonverbal signals therefore often provide the best means of communication. The book points out how decoding (interpreting) nonverbal signals is a major key to success, because often what people say wholly belies how they feel—nonverbal signals reveal their true feelings rather than what they want other people to think their feelings are. This book helps decode those secret signals. The book is written by the leading worldwide experts in the field of nonverbal communication to ensure accuracy, comprehensiveness, and timeliness.

This book explores the relationship between various types of reproduction and the evolutionary process. Starting with the concept of meiosis, George C. Williams states the conditions under which an organism with both sexual and asexual reproductive capacities will employ each mode. He argues that in low-fecundity higher organisms, sexual reproduction is generally maladaptive, and persists because there is no ready means of developing an asexual alternative. The book then considers the evolutionary development of diverse forms of sexuality, such as anisogamy, hermaphroditism. and the evolution of differences between males and females in reproductive strategy. The final two chapters examine the effect of genetic recombination on the evolutionary process itself.

Advances in the Study of Behavior was initiated over 40 years ago to serve the increasing number of scientists engaged in the study of animal behavior. That number is still expanding. This volume makes another important "contribution to the development of the field" by presenting theoretical ideas and research to those studying animal behavior and to their colleagues in neighboring fields. - Initiated over 40 years ago to serve the increasing number of scientists engaged in the study of animal behavior - Makes another important contribution to the development of the field - Presents theoretical ideas and research to those studying animal behavior and to their colleagues in neighboring fields