According to "The World on Turtle's Back", the statement that best describes the origin of man is TWO GODS WERE COMPETING TO SEE WHO COULD CREATE THE MOST POWERFUL AND CUNNING ANIMAL, AND ONE OF THEM MADE MAN.
A goddess fell from the sky and gave birth to a daughter, who became pregnant and gave birth to twin boys. Right-handed twin and Left-handed twin. Right-handed twin created the human beings but left-handed twin helped in the creation. The twins have always been in competition with each other ever since they were in the womb and they were still in competition with each other. It was said that their opposite personalities created balance among their creations.
Hope I Helped :D
-Nullgaming650