A kiss may be on your list as one of the best things in life. But have you ever thought about how kissing evolved in the first place into such a meaningful activity for humans? After all, even though ...

Nobody knows when kissing emerged among humans. But the practice of plopping one's mouth on another human, whether in friendship or love, is not universal; which suggests culture, rather than instinct ...

Humans do it, monkeys do it, even polar bears do it. And now researchers have reconstructed the evolutionary origins of kissing. Their study suggests that the mouth-on-mouth kiss evolved more than 21 ...

According to Science.org, the team worked on a basic question: if kissing offers no clear survival advantage, why is it so common? They began by mapping where the behaviour appears in animals. That ...

Kissing is not universal among human beings and, even today, there are some cultures that have no place for it. This suggests that it is not innate or intuitive, as it so often seems to us. One ...