This collection investigates the multifaceted world of juvenile primates, exploring their evolutionary history, behavior, and development. The book presents original research across major primate divisions, examining the differences between juvenile males and females, how their behaviors contribute to survival and adult preparation, and their engagement in social dynamics. It also draws parallels and distinctions between human and nonhuman primate juvenile development, offering a comprehensive look at this critical life stage.

This collection is regarded as a foundational text in primatology, offering a singular focus on the juvenile stage. Its comprehensive approach, drawing on original research across diverse primate groups, provides deep insights into developmental behaviors and their evolutionary significance. The inclusion of a new foreword and bibliography in this edition further enhances its value for researchers and students.