The study defined kissing, in part, as “oral-oral contact with some movement of the lips/mouthparts and no food transfer” ...
Scientists trace the origins of human kissing back over 20 million years to ancient apes who first showed gentle ...
Kissing could be 21 million years old. NPR's Ayesha Rascoe speaks to Matilda Brindle an evolutionary biologist from Oxford University about the origins of smooching.
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