sex

You may not even realize how much your sense of smell or taste is influencing who you fall in love with.

Move around the board with just a quick spin of the ovaries.

Our reporter checks in with a feng shui consultant to give her dating life a helping hand.

Women and men in ancient cultures used a variety of unusual methods to prevent pregnancy, with differing levels of success (and hygiene).

Tolerance and same-sex experiences both seem to be on the rise.

How do you make people make more people?

All-female mole salamanders could grow back body parts 1.5 times faster than a related species that used sex to reproduce.

What is considered romantic today would have been scandalous, if not criminal, less than 100 years ago.

Turns out this expression of unbridled hedonism isn't so modern after all.

Beauty is in the eye of the beholder, as the saying goes.

New DNA analysis suggests that interbreeding began 100,000 years ago.

Tropical slipper limpets are pretty unremarkable—until it's mating time. Then things get interesting.

People who view their personality traits as fixed are more affected by romantic rejection, a Stanford study finds.

Scientists say over-the-counter sex pills are a waste of money at best.

Johns Hopkins University surgeons are planning giving a soldier wounded in Afghanistan a working penis within a year.

Love wasn't always as simple putting a ring on it.

A new study compares testes size and vocal capacity in 10 howler monkey species.

The chewy nuptial gifts have no nutritional value.

What is it, what does it do, and why don't humans have one?

A new study finds that king penguins look for mates with similar beak coloring.

They're not nearly as common as pop culture might lead you to believe.

Hint: there's no physical contact involved.

In a study, people in unsteady physical circumstances viewed their romantic relationships as less stable.