That is not the point of evolution at all. Darwinian evolution says that randon mutation by chance can account for the the variety of life. I am saying the variety of life is based on genetic information which has always existed from the beginning. Random mutation has nothing to do with it. While both presuppose "common ancestory" there is all the difference in world between the two.
Random mutation ‘by chance’ is at the very least a simplistic, incomplete description, definitely deceptively imprecise.