40,000 years ago, our closest ancient human relatives did something that changed the manifestation of relationship, bonding forever

Kiss may last only a moment, but its evolutionary history could span millions of years. That simple gesture—today associated with love, friendship, family, and trust—may represent one of the oldest expressions of connection ever shared by our ancient ancestors, reminding us that the foundations of human relationships were laid long before written history began.

Raccontata daeconomictimes.indiatimes.com