-Removed-That question is sophomoric, and a dodge of a discussion of the narrative of the Genesis account.
The real question is did the serpent speak to Eve? If you are hung up on the serpent being a snake that's your issue.
There are many metaphors, allegories, idioms, figures of speech, parables and other linguistic aspects of the scriptures just like in every other writings.
I tried to answer your question before, but you seem to have an agenda that betrays your integrity and sincerity because you think you know something about the scriptures I don't.
Whether Satan appeared as a talking snake, or is referred to as a serpent metaphorically is irrelevant to what God is instructing us to understand about the origin of the sin that plagues the human race.
Apparently that lesson is lost on you.