I thought it would be nice to have a game about who can come up with the most interesting fact. It can be anything from something that gives pause for thought to a debunking of a commonly held belief. The main point is that is has to be interesting, and preferably causes people to want an explanation. Some good examples of interesting facts can be found here.
So, I'll go first.
There is no such thing as a fish.
Incredibly Interesting
Incredibly Interesting

"Dobby never meant to kill, only to...maim. Or seriously injure."