Once, there was an extra population in the jungle. So the King of the Jungle
decides to have a contest in order to reduce the amount of existing animals. In
the contest, every animal had to tell a joke; if the turtle laughed at that
joke, that animal would live, else they would kill it.

So the King says, "Hipopotamus, your turn!" The hippo tells his joke, and
everybody laughs but the turtle. The King then says, "KILL HIM! Giraffe, let's
listen to your joke!" The giraffe tells her joke and after that, everybody
laughs but the turtle. As the King sees that, he calls, "KILL HER!"

So, many other animals told their jokes, and the turtle never ever laughed.
Until suddenly, the turtle starts laughing out loud and she says, "The hippo's
joke was great!!!"