Evolution: by South Park elementary teacher, Mrs. Garrison (season 10 episode 12) http://www.southparkzone.com/episode.php?vid=1012


"In the beginning we were all fish, okay? Swimming around in the water. And then one day a couple fish had a retard baby, and the retard baby was different so it got to live. So retard fish goes on to make more retard babies, and then one day a retard baby fish crawled out of the ocean with it's..........mutant fish hands.

And it had butt sex with a squirrel or something....and made this....retard frog squirrel.

And then that had a retard baby which was a..... monkey fish frog. And then this monkey fish frog had butt sex with that monkey, and that monkey had a mutant retard baby that screwed another monkey.And that made you.

So there ya go. You're the retarded offspring of five monkeys having butt sex with a fish frog. Congratulations."