[samjjones]

Conan - I've often wondered this very same thing.

I finally concluded that prehistoric man's omnivorous diet of berries, tree bark, insects, and animal carcasses often lead to extreme indigestion. As a matter of survival, man's body hair, particularly around the anus, stopped growing, in order to stave off the massive propogation of dingleberries, which would be so uncomfortable as to consume man's every waking moment. And then there would be no fire, stone weapons, or James Taylor.