Or, as her majesty Faith Hill might say, “This kiss.” And, it turns out, it’s also really old. British scientists say they’ve ...

Below, we’re breaking down everything you need to know about Elphaba and Glinda’s relationship in the book ahead of Wicked: ...

A new study released on Wednesday found that humanity's first kiss occurred roughly 21 million years ago, predating humans.

New research suggests that kissing probably predates humanity and evolved between 16.9 million and 21.5 million years ago, after the ancestor of the great apes split from the lesser apes, or gibbons.

Evolutionary biologists don’t know why we kiss — but new research suggests kissing evolved long before humans existed.