One study found that rats emitted ultrasonic vocalizations when they were subjected to manual somatosensory stimulation, i.e., tickling. The results of this controversial research were published in ...

The way people laugh when tickled is “uniquely different” from other laughter such as when hearing a joke, according to a new study. Researchers at the University of Amsterdam say both machines and ...

Why can't you tickle yourself: Just imagine, you are sitting with your friend and suddenly he starts tickling you. You start laughing and running here and there to save yourself, but now tell me, what ...

For many of us, the tickling response is paradoxical — the playfulness it inspires is typically enjoyable, but the ...

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 ...

Tell a silly joke, sneeze at a rather inopportune moment, remember something that embarrassed a good friend, forget which suit is trump in the card game you’re playing…there are a thousand and one ...