Kissing is not a universal expression of romantic love, it turns out. Kissing is considered a sign of sexual attraction in less than half of the world's societies, according to a recent study. The ...

Smooching occurs across species and in a variety of ways, but the romantic context may be exclusive to humans — and isn't consistent in all cultures. But since behavioral scientists can’t pinpoint the ...

Is it in his kiss? Oh, yes. Osculation, the scientific term for kissing, in many ways says everything about your compatibility with your mate and the health of your relationship. We asked scientist ...

A kiss on the lips carries a lot of emotional weight. It's not just a physical gesture: it represents intimacy, desire, connection, and commitment. So, when a guy avoids this kind of contact, ...

There are the ones who pucker tightly before the kiss. There are the nibblers who chew around the edge of your lips. Then there are the ones who use lots of saliva, and others who are very dry. There ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. “The meeting of ...

This takes “blowing a kiss” to a whole new – some say romantic, others, downright creepy – level. An inventor at a university in China has patented a contraption that mimics the sensation, and even ...