Professor Lloyd has the advantage of being a historian and philosopher of science, as well as being a biologist. Thus, this book succeeds on several levels. Firstly it provides a well-organised review of the numerous theories advanced to account for the evolution of female orgasm. The most credible theory is due to Symons, who posited that orgasm in women represents a homologue of the male orgasmic response. As such it is an epiphenomenon....much like the nipples, or the vestigial uterus masculinus are functionless homologues in males.



The bizarre theories of evolutionary psychologists, such as Baker and Bellis are reviewed fairly, critically and at some length in this book. Hopefully this will help to put to rest ideas that are still cited in the literature, concerning the existence of "sperm retention" orgasms in humans, and other absurdities. The second value of the book is thus its detailed analysis of the flawed methods and poor reasoning applied in various studies of female orgasm. The third perspective it provides is historical, tracing how such theories developed and how they came to be widely cited by authors who were at several removes from the experimental reports and (presumably) failed to check original sources. Professor Lloyd clearly checked her sources, and has written a wonderful book.For there was bias in this field, and it needed exposure.