From the introduction: The Great Creator Spirit of the Early Earth created all of the plants and animals out of the one thing he had plenty of, in excess, in the beginning, namely Mud. After this initial burst of divine inspiration, the excess of Magical energy infused in the young planet began to mutate the handful of Mud Men, Plants, and Beasts into a great variety of forms, many of which are still recognizable today. All of the Demi-humans and Humanoids in their most primitive forms, took shape in these Days: Humans, Elves, Dwarves, Goblins, Orcs, Kobolds, etc. Trees and Flowers, Birds and bees, and monsters of every sort, all made their first appearances.