The San Francisco Zoo announced Thursday it will say goodbye to its three remaining chimpanzees as it temporarily shutters ...

New research suggests the first kiss occurred 16.9-21.5 million years ago between ape ancestors in Africa. Scientists ...

Researchers studying animal behaviour say mouth-to-mouth kissing likely appeared in the common ancestor of humans and great apes more than 21 million years ago.

In a groundbreaking study by Oxford University, researchers have traced the origins of kissing back to our shared ancestors with great apes, revealing that this intimate behavior dates back ...

Their study suggests that the mouth-on-mouth kiss evolved more than 21 million years ago, and was something that the common ...

Can a wolf use tools? A new observation from the Haíɫzaqv area in British Columbia challenges our perception of wild wolves. A female wolf was filmed pulling a crab trap completely submerged ...