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A new analysis suggests kissing on the lips may have evolved 21 million years ago – CNN

  1. A new analysis suggests kissing on the lips may have evolved 21 million years ago  CNN
  2. First kiss dates back 21 million years, say scientists  BBC
  3. Neanderthals and early humans ‘likely to have kissed’, say scientists  The Guardian
  4. Ape ancestors and Neanderthals likely kissed, new analysis finds  Phys.org
  5. When was the first kiss? Over 17 million years ago, a study suggests.  The Washington Post