Men have the biologic ability to tell if a woman is fertile by the way she walks.
Men are four times more likely to sleep in the nude than women.
"Bakku-shan" is a Japanese word for a woman who appears hot from behind but not from the front.
According to Florida State University experiment, 75% of men would agree to sleep with a stranger.
Men are more aggressive kissers than women because the goal is to flood their partner with testosterone.
Men who have more trouble controlling laughter also tend to have more trouble controlling sexual arousal.
Men with higher sex drives live longer, on average, than men with lower sex drives.
Women tend to be more attracted to men who don't show as much of an interest in them.