It's clear most here have no clue what in the world your talking about, Brother. Personally, I'm red hot, especially when people lie about Jehovah, Jesus and their relationship as father and son!
It's the difference between translations, which none of us had a part in developing, so what does it matter? And,as an atheist, you certainly don't put any faith in the Bible, so why would you care whether it was a fish or a whale? If you really wanted to know for the sake of gaining accurate...