Kissing did not begin with star-crossed human lovers but with the primate ancestors of great apes around 20 million years ago ...
Rather than being a recent cultural development, kissing may have been practised by other early humans like Neanderthals and ...
Scientists found that kissing likely originated millions of years ago in great apes and was shared by early human relatives, including Neanderthals.
Kissing is something of a mystery, being "only documented in 46 percent of human cultures," noted psychologist Catherine Talbot.
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