One in a Billion

Imagine that you were instructed to try and hit a target on a dart board.  Now consider if the size of the target was only big enough for a single dart to hit and only one billionth the size of the whole board.  Statistically you'd probably have to throw at least a half billion darts before you would even have a chance to hit the target, then you'd have to throw two billion total darts before you were likely to hit the target twice.  One last thing before you're done.  You also need to hit that target a billion times before any significant change will happen.

That is evolution.  It is not intelligent or designed.  It is random and quite stupid, but amazing and beautiful all at once