A new study that examines how kissing evolved suggests that ape ancestors and early humans like Neanderthals probably locked ...
A new study released on Wednesday found that humanity's first kiss occurred roughly 21 million years ago, predating humans.
New research suggests that kissing probably predates humanity and evolved between 16.9 million and 21.5 million years ago, after the ancestor of the great apes split from the lesser apes, or gibbons.
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