Kissing May Have Evolved 21.5 Million Years Ago in Ancestor of Great Apes and Humans

Scientific AmericanWednesday, November 19, 2025 at 7:45:00 PM
PositiveScience
  • Research indicates that kissing may have evolved around 21.5 million years ago in the ancestors of great apes and humans, highlighting its long
  • This discovery underscores the significance of kissing as a social and bonding mechanism, suggesting that it has played an important role in the development of relationships among early hominids.
— via World Pulse Now AI Editorial System

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