Creatures decided for themselves to grow eyes? How did they decide that? Decide it with what? But if they had brains enough for that task, are you sure they'd have enough grey cells to design the thing AND wire it all up right? What did they study to help draw up their plan? How could they know there was anything to see anyway? And, why are monkeys still here, not evolving into men like my clever uncle Marv?
Joojoobean - Either you are ignorant of the facts about evolution to a degree that defies belief, or that was satirical, in which case you are a genius.