>>Research has recently shown that strong wind from the correct direction will 'part the waters' over the appropriate geographical area, allowing people to scurry across, and flooding the area when the winds change. Similar to a tsunami, but different cause. <<

Has recent research also shown that a man can live for several days in a fish?

If you want to poke holes in the accounts of the Bible you don't need to be so elaborate.

Just say that people are prone to exaggerate and a thousand years is a long time for a story to grow in the retelling.