Dr. Tatiana's sex advice to all creation

Do your genitals explode? Are you 200,000 times smaller than your mate? Do you drug your lover with a potion that keeps her faithful? You may not get up to such tricks, but some creatures do: sex is one of the most powerful forces in nature, and generates an astounding diversity of forms and behaviors. But why? Dr Tatiana's Sex Advice to All Creation explores the science of sex, considering everything from why females of so many species are so promiscuous to why sex exists at all. It is a blend of wit and rigor, a fusion of science and natural history, that will entertain, amaze, and inform. - from http://www.drtatiana.com/