Two different human species meet tens of thousands of years ago. Modern humans, fresh from Africa, encounter their stockier, cold-adapted cousins in what is now Europe. Did this initial meeting lead ...

Stories centered around true love's kiss might be tales as old as time. And, according to a new study, kisses might even have been around before humans walked the earth. Humans kiss each other ...

Kissing, for all popularity, is a bit of a mystery. Scientists have long debated when humans’ ancestors first put their lips together, and whether the act is simply a cultural trait. A new study ...

The act of kissing may have started long before modern humans existed, a new modeling study suggests. Kissing stretches back roughly 21 million years, to the shared ancestor of humans and other large ...

The study defined kissing, in part, as “oral-oral contact with some movement of the lips/mouthparts and no food transfer” Brian Anthony Hernandez, who has nearly 20 years of journalism experience, ...

Stories have long been swapped on awkward first kisses and princesses smooching frogs, but a new study suggests the earliest instance of two lips pressing together happened up to 21 million years ago ...

Kissing is not universal today and only 46% of cultures practice it, say researchers THURSDAY, Nov. 20, 2025 (HealthDay News) — Kissing may feel like a very human habit, but new research suggests it ...

How far back in evolutionary history does kissing go? Through phylogenetic analysis, an international team of scientists found that kissing was likely present in the ancestor of all apes – which lived ...