Foreword; Preface; Part I. Overview: 1. Why sex? R. V. Short; 2. Constraints to parthenogenesis D. Crews; Part II. Somatic Dimorphisms Across the Species: 3. Explaining the evolution of unexpected sex differences J. D. Reynolds and P. H. Harvey; 4. Sexual dimorphism in the Hymenoptera J. W. Stubblefield and J. Seger; 5. Sex change in fishes - how and why D. Y. Shapiro; 6. Teeth, horn and antlers: weapons of sex G. A. Lincoln; 7. The evolution of sexual size dimorphism in primates R. D. Martin, L. A. Willner and A. Dettling; Part III. Sexual Dimorphisms in Organ Systems: 8. Translating gonadal sex into phenotypic sex J. D. Wilson; 9. Sexual dimorphisms in the gonads of marsupial mammals M. B. Renfree; 10. Regulation of sexual dimorphism in rat liver J.-A. Gustafsson; 11. Sex differences in sounds and their causes E. Balaban; 12. Brain structure: causes and consequences of brain sex M. Gahr; Part III. Sexual Dimorphisms in Behaviour: 13. Hormone-behaviour interactions and mating systems in male and female birds J. C. Wingfield; 14. Behavioural dimorphisms in African elephants J. H. Poole; 15. The costs of sex differences T. H. Clutton-Brock; 16. Pheromones: the fruit fly's perfumed garden J.-F. Ferveur, M. Cobb, Y. Oguma and J.-M. Jallon; Part IV. Genetic and Environmental Control of Gonadal Sex: 17. Evolution of mammalian sex chromosomes M. F. Lyon; 18. Mammalian sex-determining genes J. A. Marshall Graves; 19. Bizarre mammalian sex-determining mechanisms K. Fredga; 20. Environmental control of gonadal differentiation C. Pieau, M. Girondat, G. Desrages, M. Dorizzi, N. Richard-Mercier, P. Zaborski; Afterword; A man's a man for a' that R. V. Short; A few chromosomal differences among friends E. Balaban; Index.
