Maybe there is a tickle monster living underground or on a planet called Ticklelandia. And the people come to Earth and while we’re sleeping, they get in our mouths and live in our bodies. That’s why ...

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 ...

Tickling is a very strange sensation because it doesn't depend on your will. That's right, you don't decide whether or not to laugh; your body simply reacts. Your brain doesn't even have a chance to ...