Scientists have traced kissing back to early primates, suggesting it began long before humans evolved. Their analysis points ...

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A new study led by the University of Oxford has found evidence that kissing evolved in the common ancestor of humans and ...

Three studies published in one of the most respected medical journals paint a vivid picture of how ultra-processed foods are ...

A new study released on Wednesday found that humanity's first kiss occurred roughly 21 million years ago, predating humans.

Scientists trace the origins of human kissing back over 20 million years to ancient apes who first showed gentle ...

Kissing did not begin with star-crossed human lovers but with the primate ancestors of great apes around 20 million years ago ...

Scientists found that kissing likely originated millions of years ago in great apes and was shared by early human relatives, ...

Mark Robichaux, a former reporter for the Wall Street Journal, is a fisherman and author.

Kissing is something of a mystery, being "only documented in 46 percent of human cultures," noted psychologist Catherine ...