I'm sure you know all the stories behind various constellations in the sky, like the 7 stars in the Pleiades (star cluster) are the 7 sisters of Orion. Thing is, these are just stories. I used to study archeoastronomy, the history of ancient theories on the stars. Long ago in the East, they envisioned that the world was a flat disc that sat on the backs of elephants. Other cultures believed the world was held up by giant turtles.
That is what the above story reminds me of--- talking snake comes down a tree with a magic apple--- I mean, who made the snake and tree and put them there in the first place?
It all comes down to discipline and free choice. After all, God told them do not eat of the tree in the middle of the garden!
Obvious, the account of Genesis was either written by someone's fanciful imagination trying to give the Bible a start and beginning, or it was written by someone trying to take a story really big and bring it down to a level simple enough, that primitive mankind from thousands of years ago could understand and believe it.