The perverse wonder of evolution is this: the very mechanisms that create the incredible beauty and diversity of the living world guarantee monstrosity and death. The child born without limbs, the sightless fly, the vanished species—these are nothing less than Mother Nature caught in the act of throwing her clay. No perfect God could maintain such incongruities. It is worth remembering that if God created the world and all things in it, he created smallpox, plague, and filariasis. Any person who intentionally loosed such horrors upon the earth would be ground to dust for his crimes.
