A Natural History of Bums The Story of Evolution, from Your Bum to Beyond

Get to know the history of your you-know-what with the hilarious guide to evolution, A Natural History of Bums. Bum, 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? Now, don't be alarmed, but your bum holds a story as old as time itself. From cave-people to p