Kissing is more than just "mouth-to-mouth" touching, and the study doesn't really shed much light on why humans kiss the way ...

Chimpanzees are some of the smartest creatures on Earth, sharing about 98% of their DNA with humans. Their brains work in ...

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 ...

Researchers trace the origins of the first kiss to early primates 20 million years ago, revealing the deep roots of human ...

Footage from British Columbia shows just how intelligent wild wolves can be, but scientists are divided as to whether the ...

The Goncalves family is suing Washington State University, the school Bryan Kohberger attended when he killed their daughter, Kaylee Goncalves, and three of her ...

The first kiss in history probably took place over 16.9 million years ago — long before humans even existed, a new study suggests.

Scientists suggest that the act of kissing evolved over 21 million years ago, a practice shared by humans and their great ape ...

AMSTERDAM — Kissing did not begin with star-crossed human lovers but with the primate ancestors of great apes around 20 ...

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.

The global search for the most intelligent animals has become one of science’s most captivating pursuits. From jungles to ...