A kiss is one of the most universal gestures in the world. It’s a wordless way to show affection that transcends language, culture, and even species boundaries, conveying a great deal of meaning ...

A new study that examines how kissing evolved suggests that ape ancestors and early humans like Neanderthals probably locked lips with their friends and sexual partners. The behavior may date back 21 ...

Researchers at the University of Oxford, Oxford, England, traced the evolutionary origins of kissing and described their work on Evolution and Human Behavior as the first attempt to reconstruct its ...