Furthermore: Where the Headlines Take You

Caster Semenya and the "Rules" of Gender

South African, middle-distance runner Caster Semenya has been embroiled in controversy these last few months. Last week Semenya withdrew from competition amid reports in the Australian media regarding leaked findings of a sex-determination test that implied Semenya, who had dominated the field running against women, has Androgen Insensitivity Syndrome. Indicators of AIS include elevated testosterone and the presence of undescended testes. Semenya's success as a runner brings to light surprising limitations in our culture's conception of gender but this is not the first time that an athlete has faced such scrutiny. Indian runner Santhi Soundararajan tested positive for possessing a Y chromosome and was stripped of her silver medal from the 2006 Doha Asian Games. Soundararajan attempted suicide the following year. The International Olympic Committee banned genetic testing in 1999 but during the 1996 games in Atlanta eight women athletes tested positive for having a Y chromosome. Of those eight, seven had AIS and all were allowed to compete.

Gender is, of course, a complicated issue and as a construct it is difficult to contextualize. Matt Ridley's The Red Queen: Sex and the Evolution of Human Nature succeeds mightily in comparing/contrasting human expressions of gender and sexuality to those found elsewhere in the animal kingdom. The book's title refers to the Red Queen's race in Lewis Carroll's Through the Looking Glass during which the Queen remarks, "it takes all the running you can do, to keep in the same place." Ridley uses this analogy in explaining the advantage of sexual reproduction for individuals within a species as well as the constant evolutionary arms race that exists between species competing for resources in their shared environment. By using frequent examples from throughout the animal kingdom Ridley illustrates that our cultural concepts of gender and sexual reproduction are frequently much narrower than those recognized by science and expands these insights into valuable reflections on the nature of our behavior as a species.

Then again, if professor of genetics at the Institute of Molecular Medicine at Oxford University Bryan Sykes is correct, humans may not have to worry about gender issues in the future. In Adam's Curse: a Future Without Men he posits that within 125,000 years (not really that long by evolutionary standards) Homo sapiens may lose the Y chromosome entirely. Sykes describes the deterioration of the Y chromosome in dramatic terms and proposes that its diminishing stability may be responsible for increasing rates of infertility among men. Though the author has impressive academic credentials, this story of conflict and cooperation between mitochondrial DNA (which we all inherent from our mothers) and the Y chromosome (which males inherent from their fathers) is written in concise and entertaining prose. The central thesis of Adam's Curse may not come to fruition until well beyond our days but the science that Sykes describes in exploring this intriguing possibility has many applications in the present.

As much as the parent's genes may battle for expression in their child's body, sexual reproduction is still an altruistic (and very successful) process. How Sex Works: Why We Look, Smell, Taste, Feel, and Act the Way We Do by Dr. Sharon Moalem explores human sex from a practical, scientific vantage point and the results are a fascinating and revealing look at what makes us human using our sexuality as a lens. Moalem presents up to date research about human sexuality in a compelling and informative way and doesn't shy away from difficult issues (can twins have different fathers?) Competing theories are included in an effort to be as informative and honest as possible about the complexities of the issues at hand. Although How Sex Works enthralls with its detailing of the unseen machinations of our bodies, such as the development of the secondary sexual characteristics that we commonly use to distinguish the sexes, its greater import is to suggest how flexible our society may need to be if we are to acknowledge the gap between our cultural constructs of gender/sexuality and science's interpretation how and why we behave the way we do.