If you think laughter and comedy are reserved strictly for humans, you’d be wrong. A study in the late 1990s showed that creatures like rats emit ultrasonic vocalizations while playing with or ...

Now that we know octopi like to play with cameras, it’s time to investigate other forms of animal play. Did you know that rats laugh when you tickle them? This ...

For nearly a decade, Vincent Bombail has been tickling rats. It’s been a standard technique used in the study of animal ...

Tickling may seem like child's play, but scientists are beginning to see it as something much deeper—a complex puzzle tied to human touch, laughter, and brain development. The sensation of being ...