But if I were to assume you meant you wanted a 'natural' explanation in order to stop people from being so ignorantly religious... Trying to shove evidence around a story is as filled with holes as the story itself. Just revealing how many holes there are in the story is sufficient in many cases.
You want less religious people? Make 'em read the bible all the way through.
You want less religious people? Make 'em read the bible all the way through.