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 ...
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First Kiss: Scientists Trace Smooching's Origins In New Study
In the words of Dua Lipa, one kiss is all it took about 21 million years ago. That's roughly when scientists estimate that kissing first emerged in the common ancestor of humans and other great apes.
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