In Christ the original image of God is restored, by faith in this world and by sight in the world to come.
Neither does man have gills for living in a water environment yet it is not sinful to explore the depths of the oceans in search of food or other blessings.
With our knowledge of modern-day genetics, we realize that it was possible for God to place the potential for all people throughout history into the genes of Adam and Eve when He created them.