If evolution by natural selection takes place in gradual, step by step modifications and improvements over time, then how could something as complicated as the eye have formed? After all, what good would a quarter of an eye be? Wouldn’t the eye be an all or nothing kind of thing?
In this short video, learn for yourself how eyes have evolved in various species across our planet. (In fact, eyes have evolved many different times along several different lines. Not all of us living beings on planet Earth use the same “model” of eye).