Aldo Poiani is an evolutionary ecologist from Monash University, Australia. He has studied social behaviour, sexual behaviour and parasitism in birds, having published widely in the fields of avian cooperative breeding and host-parasite interactions, including aspects related to behaviour, endocrinology and comparative biology. He has carried out field research in Australia, Europe and South America and is editor of the book Floods in an Arid Continent.

• 1. Animal homosexuality in evolutionary perspective; 2. The comparative study of homosexual behaviour; 3. Genetics of homosexuality; 4. Ontogenetic patterns; 5. The endocrine and nervous systems: a network of causality for homosexual behaviour; 6. Immunology and homosexuality; 7. Sexual segregation effects; 8. The social, life-histories and ecological theatres of animal homosexual behaviour; 9. Homosexual behaviour in primates; 10. A biosocial model for the evolution and maintenance of homosexual behaviour in mammals and birds.

' … a truly monumental compendium of everything you might have wanted to know about same-sex biology, its proximate as well as ultimate causation … a goldmine … with a treasure-trove of many hundreds of references … Aldo Poiani, in this admirable volume, has drawn together the best, most coherent summary to date of the currently available evidence.' Evolutionary Psychology