An uproarious and authoritative natural history in the form of letters to and answers from the preeminent sexpert in all creation, this bestselling guidebook to sex reveals, for example, when necrophilia is acceptable, how to have a virgin birth, and when to eat your lover. It also advises on more mundane matters-such as male pregnancy and the joys of a detachable penis. At once entertaining and wise, Dr. Tatiana (a.k.a. Olivia Judson) fuses natural history with advice to the lovelorn, blends wit and rigor, and reassures her anxious correspondents that although the acts they describe might sound appalling and unnatural, they are all perfectly normal-so long as you are not a human. In the process, she explains the science behind it all, from Darwin's theory of sexual selection to why sexual reproduction exists at all. By applying human standards to the natural world, in the end she reveals the wonders of both.

奧利維雅•賈德森 （Olivia Judson），美女學者，進化生物學傢，是親緣利他理論創始人漢密爾頓的晚年弟子，牛津大學博士。現為倫敦帝國學院（Imperial College in London）研究員。其作品見於《自然》（Nature）、《科學》（Science）、《經濟學傢》（The Economist）、以及《泰晤士報高等教育副刊》（The Times Higher Education Supplement）等著名學術雜誌和報刊。