Does birth order affect sexual preference? Why are some animals bisexual? A new book probes a heated topic

Welcome to the low-commitment dating distraction of the summer

In the world of plushophiles, not all stuffed animals are created equal.

Roth's not a misogynist -- he worships women's sexual power, and he taught me to celebrate mine

Military justice is starting to resemble the Southern "justice" of yore -- stacked against black men. And it's white feminists who are doing the stacking.

Is it a good idea for public figures to host porn on their public Web sites? You be the judge.

New discoveries show that fibs and self-deception are central to our evolutionary strategy. An expert explains

Hours of video game play improves women's spatial abilties, says a new study.

Werewolves have never been as popular as vampires or zombies. They've also overwhelmingly been male

Animal sex can get pretty wild

Trump is demanding that we peel back a layer or two of American civilization, of American manners

Jane and Michael take their relationship to the next physical level in a refreshingly honest portrayal

Face lifts, depressed babies, gay politicians and more!

Lofty political language gets thrown around in the coverage of the Milan fashion shows ... but to what avail?

For ages, impotent men cowered in shame and submitted their penises to terrible remedies. Yet in time, a new cultural history shows, relief would arise for their private misfortunes.