A Natural History of BumsBum, butt, behind, whatever you call it, the one you're sitting on right now is the finely tuned result of millions of years of evolution. Fascinating, isn't it? Get to know the history of your you know what with the hilarious guide to evolution, A Natural History of Bums. Now, don't be alarmed, but your bum holds a story as old as time itself. From caveman to present day, evolution has shaped this essential body part in remarkable ways. It's more