A small note to add here. Slightly less intellectual than most posts I have read here, but it does involve learned evolution on some small level. I recently read of a trend that is obvious if you look around. It seems that the younger generation of children, particularily those of grade school age, have picked up a new ability. These children have developed a finger with a greater amount of dexterity than their predecesors (namely, us). Their thumbs. Don't laugh, think about it for a moment. When you dial a phone, which finger do you most often use? For me and most people my age and older, it is most certainly the index finger or "pointer". For the children stated above it has become the thumb. With the advent of smaller technology, namely cellular phones, pagers, and hand-held video games, the thumb is emerging as the most dextrous digit on the hand. Is it evolution?