Actually the history of the eye has been farily well understood, and the various stages of its evolution can be seen in animals that exist today. Dawkins explai

Actually the history of the eye has been farily well understood, and the various stages of its evolution can be seen in animals that exist today. Dawkins explains it: https://www.youtube.com/watch?v=Nwew5gHoh3E https://www.youtube.com/watch?v=Nwew5gHoh3E