These are probably as much bullshit as anything else, but still pretty interesting. Kinda funny too.

More at the link.

Psychology Today: Ten Politically Incorrect Truths About Human Nature:

"Excerpted from Why Beautiful People Have More Daughters, by Alan S. Miller and Satoshi Kanazawa, to be published by Perigree in September 2007.

1. Men like blond bombshells (and women want to look like them)

Long before TV—in 15th- and 16th- century Italy, and possibly two millennia ago—women were dying their hair blond...

Women's desire to look like Barbie—young with small waist, large breasts, long blond hair, and blue eyes—is a direct, realistic, and sensible response to the desire of men to mate with women who look like her. There is evolutionary logic behind each of these features.

Men prefer young women in part because they tend to be healthier than older women. One accurate indicator of health is physical attractiveness; another is hair. Healthy women have lustrous, shiny hair, whereas the hair of sickly people loses its luster. Because hair grows slowly, shoulder-length hair reveals several years of a woman's health status.

Men also have a universal preference for women with a low waist-to-hip ratio. They are healthier and more fertile than other women; they have an easier time conceiving a child and do so at earlier ages because they have larger amounts of essential reproductive hormones. Thus men are unconsciously seeking healthier and more fertile women when they seek women with small waists.

Until very recently, it was a mystery to evolutionary psychology why men prefer women with large breasts, since the size of a woman's breasts has no relationship to her ability to lactate. But Harvard anthropologist Frank Marlowe contends that larger, and hence heavier, breasts sag more conspicuously with age than do smaller breasts. Thus they make it easier for men to judge a woman's age (and her reproductive value) by sight—suggesting why men find women with large breasts more attractive.

...Blond hair is unique in that it changes dramatically with age. Typically, young girls with light blond hair become women with brown hair. Thus, men who prefer to mate with blond women are unconsciously attempting to mate with younger women...

2. Humans are naturally polygamous

The history of western civilization aside, humans are naturally polygamous. Polyandry (a marriage of one woman to many men) is very rare, but polygyny (the marriage of one man to many women) is widely practiced in human societies, even though Judeo-Christian traditions hold that monogamy is the only natural form of marriage. We know that humans have been polygynous throughout most of history because men are taller than women...

3. Most women benefit from polygyny, while most men benefit from monogamy

...Men in monogamous societies imagine they would be better off under polygyny. What they don't realize is that, for most men who are not extremely desirable, polygyny means no wife at all, or, if they are lucky, a wife who is much less desirable than one they could get under monogamy.

5. Having sons reduces the likelihood of divorce... [Apparently that did not apply in my family - Rob.]

8. The midlife crisis is a myth—sort of

Many believe that men go through a midlife crisis when they are in middle age. Not quite. Many middle-aged men do go through midlife crises, but it's not because they are middle-aged. It's because their wives are. From the evolutionary psychological perspective, a man's midlife crisis is precipitated by his wife's imminent menopause and end of her reproductive career, and thus his renewed need to attract younger women...

10. Men sexually harass women because they are not sexist


An unfortunate consequence of the ever-growing number of women joining the labor force and working side by side with men is the increasing number of sexual harassment cases. Why must sexual harassment be a necessary consequence of the sexual integration of the workplace?

...The quid pro quo types of harassment are manifestations of men's greater desire for short-term casual sex and their willingness to use any available means to achieve that goal. Feminists often claim that sexual harassment is "not about sex but about power;" Browne contends it is both—men using power to get sex. "To say that it is only about power makes no more sense than saying that bank robbery is only about guns, not about money."

Sexual harassment cases of the hostile-environment variety result from sex differences in what men and women perceive as "overly sexual" or "hostile" behavior. Many women legitimately complain that they have been subjected to abusive, intimidating, and degrading treatment by their male coworkers. Browne points out that long before women entered the labor force, men subjected each other to such abusive, intimidating, and degrading treatment.

Abuse, intimidation, and degradation are all part of men's repertoire of tactics employed in competitive situations. In other words, men are not treating women differently from men—the definition of discrimination, under which sexual harassment legally falls—but the opposite: Men harass women precisely because they are not discriminating between men and women."