The first human kiss originated 21 million years ago, study finds
Lucian Nemoiu
Homo sapiens and Neanderthals may have kissed, researchers at the University of Oxford discovered Sign up for our free Health Check email to receive exclusive analysis on the week in health Get our free Health Check email Get our free Health Check email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Humanity 's first kiss dates back 21 million years and our ape ancestors may have locked lips with Neanderthals , a study
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