Because not all apes turned into humans so some apes remained to keep reproducing. And just a question for the other answerers: If god created everything, surely he could have not created himself bringing up my point: Who created god, but then who created the thing, that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,that created the thing,.... that created god?