Atheists, here ya go.................?

How is nature so perfect? How do we know what to do? How do animals "just know" what to do? Why do snakes have venom to protect themselves? How do we have instinct? Do we "just have it"? No. Your dumb. It was given to us by God, otherwise it we wouldnt have it. It wouldnt exist. We wouldnt have instincts if there werent a God. So why do we have instincts then if there isnt a creator?