Chapter 1. A Journey to Discover Wamba.- Chapter 2. From the Early Days of Bonobo Research.- Chapter 3. Science's Early Reception of a "New" Ape.- Chapter 4. Column: Mongo Forest.
- Chapter 5. Column: Wamba: Base Camp for My Study in Zaïre.- Chapter 6. Column: Following Bonobos in the Forest.- Chapter 7. Column: Researchers Are Part of the Wamba Ecosystem.- Chapter 8. Sexual Behaviors and Hormonal Background of Female Bonobos.
- Chapter 9. Personality Quirks and Polymorphic Genes in Bonobos.- Chapter 10. Within- and Between-Group Kin Structure of Wild Bonobos in Comparison to Other African Great Apes.- Chapter 11. Hunting and Meat-Eating Behaviors of Bonobos at Wamba: Comparison With Other Bonobo Study Sites.- Chapter 12. The Puzzle of Pan Tool Use: Why are Bonobos so Different from Chimpanzees in Their Use of Tools?.
- Chapter 13. A Closer Look at Grooming Patterns in Bonobos.- Chapter 14. Bonobo Gestures, Meanings, and Context.- Chapter 15. Multiple Phases of Natal Transfer Processin Female Bonobos and Factors Underlying Each Phase: Findings from Long-Term Observations in Wild Populations.- Chapter 16. Social Behaviors of Nulliparous Adolescent Female Bonobos.
- Chapter 17. Column: What Kinds of Sexual Functions Does Genito-Genital Rubbing Have as a Socio-Sexual Behavior?.- Chapter 18. Column: Food Sharing in Rich Environments.- Chapter 19. Column: Staying Together.- Chapter 20. Column: Exploring Bonobo Habitat Use in Wamba: Findings and Implications.
- Chapter 21. Aggressive Behaviors and Social Dominance in Bonobos.- Chapter 22. Social Relationships in Female Bonobos.- Chapter 23. Intermale Relationships in Wild Bonobos at Wamba.- Chapter 24. Potential Benefits of Intergroup Associations and Chronological Changes of Intergroup Relationships in Bonobos.
- Chapter 25. Column: From Nests and Videos to Wamba Bonobos.- Chapter 26. Column: Intergroup Aggression in Bonobos at Wamba.- Chapter 27. History of Anthropological Studies Around Wamba.- Chapter 28. SubsistenceActivities and Forest Utilization Among the Bongando People before and after the Congo War.
- Chapter 29. Change of the Distribution Network Around the Wamba Region.- Chapter 30. Empowering Local Associations for Sustainable Local Development: The Case of a Collaborative Project in the Wamba Region.- Chapter 31. Taboo Against Eating Bonobos and its Degradation.- Chapter 32. The Importance of Monitoring Bonobos and Their Habitats for Informing Bonobo-Specific Conservation Prioritization and Planning.
- Chapter 33. Column: A Bonobo Funeral: Relationships between Researchers and Local People as Exemplified in a Funeral Speech.- Chapter 34. Column: My First Ever Conservation Practice on African Great Apes; Bonobos in Wamba.- Chapter 35. Column: Re-Considering the Potential Geographic Distribution of Great Apes for Conservation Action: What is Suitable?.- Chapter 36. The Influence of the Congo River on the Evolutionary Trajectory of Bonobos.
- Chapter 37. The Evolution of Empathy and its Expression in Bonobo.- Chapter 38. Hypotheses for the Evolution of Bonobos: Self-Domestication and Ecological Adaptation.- Chapter 39.Prolonged Sexual Receptivity in Females and its Impact on the Evolution of Bonobos.