User blog comment:Twilight Despair 5/Oldest Enemy or Species./@comment-77.103.230.159-20120512165851

This is my own personally view on what the show evolution time lime of beings begins with:

God, Death and all other dieties.

Leviathan, Reapers

Eve

Arc-Angels, Angels and other Angelic type beings

Humanity, Animals and all other life forms that exsist on Earth (Soul is connected to creation of Humans)

Demons and all other mosters created using a Human (Alpha's then their children)

Am not sure if Hellhounds etc... were created by demons or already exsisted in Hell before Demons but my guess is that Demons created them.