Kissing feels so normal that most of us never question it.
We see it in relationships, greetings, movies, weddings and goodbyes. It feels almost instinctive.
Except there’s a problem.
Not every culture kisses.
Across history, different societies have shown affection in completely different ways, and researchers still debate where kissing actually came from in the first place. Was it something humans evolved to do? A cultural habit that spread? A way of choosing a partner? Or did it begin with something far less romantic?
The deeper you look into the history and biology of kissing, the stranger such a simple human gesture becomes.
In this video, The Wonder Why explores one question we rarely stop to ask "Why do humans kiss?"
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