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

By Katie Hunt, CNN (CNN) — A new study that examines how kissing evolved suggests that ape ancestors and early humans like Neanderthals probably locked lips with their friends and sexual partners. The behavior may date back 21 million years. Humanity’s earliest kisses were recorded 4,500 years ago in Mesopotamia and Ancient Egypt, but Matilda