Many believers cannot conceive of this amazing universe coming into being naturally. They think is requires an intelligent person to perfectly design the conditions required for life. This person, of course, is called God. They ignore the fact that God is also amazing and probably more so. Normally, a thing made is not as amazing as it's maker. For example, the Mona Lisa painting is much admired, but is not as wonderful as the artist. God is obviously more amazing than the Universe. If amazing things require a maker then God requires one too. In any case, intelligence didn't come early in the history of everything. It came very late. It took a very long time for the wheel to be invented. It took even longer for the discovery of germs. These are things that God never did.