"One is not born, but rather becomes, a woman."
Simone de Beauvoir, The Second Sex (1949)

In nature, male and female are distinct. She-elephants are gregarious, he-elephants solitary. Male zebra finches are loquacious - the females mute. Female green spoon worms are 200,000 times larger than their male mates. These striking differences are biological - yet they lead to differentiation in social roles and skill acquisition.

Alan Pease, author of a book titled "Why Men Don't Listen and Women Can't Read Maps", believes that women are spatially-challenged compared to men. The British firm, Admiral Insurance, conducted a study of half a million claims. They found that "women were almost twice as likely as men to have a collision in a car park, 23 percent more likely to hit a stationary car, and 15 percent more likely to reverse into another vehicle" (Reuters).

Yet gender "differences" are often the outcomes of bad scholarship. Consider Admiral insurance's data. As Britain's Automobile Association (AA) correctly pointed out - women drivers tend to make more short journeys around towns and shopping centers and these involve frequent parking. Hence their ubiquity in certain kinds of claims. Regarding women's alleged spatial deficiency, in Britain, girls have been outperforming boys in scholastic aptitude tests - including geometry and maths - since 1988.

In an Op-Ed published by the New York Times on January 23, 2005, Olivia Judson cited this example

"Beliefs that men are intrinsically better at this or that have repeatedly led to discrimination and prejudice, and then they've been proved to be nonsense. Women were thought not to be world-class musicians. But when American symphony orchestras introduced blind auditions in the 1970's - the musician plays behind a screen so that his or her gender is invisible to those listening - the number of women offered jobs in professional orchestras increased. Similarly, in science, studies of the ways that grant applications are evaluated have shown that women are more likely to get financing when those reading the applications do not know the sex of the applicant."

On the other wing of the divide, Anthony Clare, a British psychiatrist and author of "On Men" wrote:

"At the beginning of the 21st century it is difficult to avoid the conclusion that men are in serious trouble. Throughout the world, developed and developing, antisocial behavior is essentially male. Violence, sexual abuse of children, illicit drug use, alcohol misuse, gambling, all are overwhelmingly male activities. The courts and prisons bulge with men. When it comes to aggression, delinquent behavior, risk taking and social mayhem, men win gold."

Men also mature later, die earlier, are more susceptible to infections and most types of cancer, are more likely to be dyslexic, to suffer from a host of mental health disorders, such as Attention Deficit Hyperactivity Disorder (ADHD), and to commit suicide.

In her book, "Stiffed: The Betrayal of the American Man", Susan Faludi describes a crisis of masculinity following the breakdown of manhood models and work and family structures in the last five decades. In the film "Boys don't Cry", a teenage girl binds her breasts and acts the male in a caricatural relish of stereotypes of virility. Being a man is merely a state of mind, the movie implies.

But what does it really mean to be a "male" or a "female"? Are gender identity and sexual preferences genetically determined? Can they be reduced to one's sex? Or are they amalgams of biological, social, and psychological factors in constant interaction? Are they immutable lifelong features or dynamically evolving frames of self-reference?

In rural northern Albania, until recently, in families with no male heir, women could choose to forego sex and childbearing, alter their external appearance and "become" men and the patriarchs of their clans, with all the attendant rights and obligations.