Dog gives dramatic side-eye when asked to do the same trick too many times ...

A couple of years ago, while I was at a dog park and having a great time watching dogs play, I heard a young girl screaming to her mom, "Look, look -- Rosie is making out with Henry!" I turned around ...

Kissing is a big part of human culture. According to ancient cuneiform tablets found in Iraq, humans have been smooching since at least 2500 B.C. Around the world today, many societies share kisses in ...

Smooching occurs across species and in a variety of ways, but the romantic context may be exclusive to humans — and isn't consistent in all cultures. But since behavioral scientists can’t pinpoint the ...

We used this definition to trawl published scientific papers, searching for observations of kissing in the group of monkeys and apes that evolved in Africa, Asia and Europe. It turns out that a ...