For people who believe that evolution and creationism can coexist?

Sorry, but the theory of evolution is a scientific theory. Science is a quest to understand nature, and _every_ scientific theory is a purely natural explanation of some phenomenon or some cluster of phenomena. Some theories are believed to be valid, and some theories eventually are proven wrong, but there is no such thing as a scientific theory that is "impossible without a God." If it requires God, then it isn't scientific.