Well based on the dates, timing of events and span of characters lives in the bible one comes to the logical conclusion after tallying the years up. Unless the bible is wrong about the age of it's characters and the dates of it's events.
Just throwing this out there but not all of us are Fundamentalists at believe the world is 6,000 years old. Literal interpretation of the stories of the bible is a slippery slope. We know Jesus used metaphors and hypotheticals to explain things, so to many people like myself, I don't really worry about whether or not Jonah was eaten by an actual whale or if the "whale" is a symbol for something else like lust or drunkenness than can "consume" a person.