Kiss is often seen as one of humanity's most personal expressions of affection. It symbolizes love, trust, friendship, and emotional connection across cultures. But what if this familiar gesture is far older than human civilization itself? New evolutionary research suggests that kissing may have deep biological roots, stretching back millions of years—and that Neanderthals, our closest ancient human relatives who disappeared around 40,000 years ago, likely shared this behavior with modern humans.
The findings offer a fascinating glimpse into the origins of human relationships and suggest that kissing may have played a much larger role in social bonding than previously believed, as per BBC News report.
