Platonic kissing, on the other hand, may help strengthen social bonds and manage relationships within complex primate groups.

Why do humans kiss? Is it instinct, romance, biology or something far more ancient? Did the first kiss take place millions of years before humans ever existed?

Researchers now believe that kissing did not originate with humans, but with the ancient primate ancestors of today’s great apes nearly 20 million years ago, according to a new study published on Wednesday, reported by NDTV.

The research team from Oxford University and the Florida Institute of Technology set out to understand when and why kissing began, especially since the act offers no clear evolutionary advantage and can even facilitate the spread of disease. Despite this, humans, chimpanzees, bonobos,

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