If you have noticed, evolutionary theories seem to fall down as man gets more intelligent
(not sure if we are actually getting more intelligent but it was the only word I could think of) 
Darwin came along and almost blew creationism out of the water but years later, where do we stand with Darwinism, modern science have proven most, actually nearly all of his theories wrong.
Years later, science goes onto explain how we are left with organs (appendix etc) left over from our evolutionary period and are no longer used. Years later they find that they do have a use within protecting the immune system and more.
Modern science discusses 'junk dna' left over within our system from an earlier time. As they find out more, they have now come to realise that this so called 'junk dna' is actually being used within our bodies.
Man is just not yet intelligent enough to understand but it seems like they are slowly getting there
