Contributors; Preface; Part I. Introduction: 1. Levels and processes Patrick Bateson; Part II. The Development of Behaviour: 2. Are there principles of behavioural development? Patrick Bateson; 3. Differences in behavioural development in closely related species: bird song Peter Marler; Commentary 1 Robert A. Hinde; Part III. Neural and Endocrine Aspects of Behaviour: 4. Analytical ethology and synthetic neuroscience John C. Fentress; 5. Cerebral function and behaviour investigated through a study of filial imprinting Gabriel Horn; 6. How does the environment influence the behavioural action of hormones? J. B. Hutchison; 7. Testosterone, attention and memory R. J. Andrew; 8. A psychobiological approach to maternal behaviour among the primates Jay S. Rosenblatt; Commentary 2 Robert A. Hinde; Part IV. Social Organisation: 9. The evolution of sex differences and the consequences of polygyny in mammals T. H. Clutton-Brock; 10. What can we say about social structure? Thelma E. Rowell; 11. On declaring commitment to a partner M. J. A. Simpson; Commentary 3 Robert A. Hinde; Part V. Human Behaviour: 12. Ethological light on psychoanalytical problems John Bowlby; 13. Temperament and attachment: an eclectic approach Joan Stevenson-Hinde; 14. A fresh look at 'maternal deprivation' Michael Rutter; 15. Relationships and behaviour: the significance of Robert Hinde's work for developmental psychology Judy Dunn; 16. The individual and the environment in human behavioural development Marian Radke-Yarrow; Commentary 4 Robert A. Hinde; Part VI. Aggression and War: 17. An evolutionary perspective on human aggression David A. Hamburg; Commentary 5 Robert A. Hinde; Part VII. Memoirs: 18. Some personal remarks Niko Tinbergen; 19. Robert Hinde in Africa Jane Goodall; Commentary 6 Robert A. Hinde; Appendices; Index.