Jonah and the Whale many things in the Bible are unbelievable. Jonah and the whale is no exception. How could a man be swallowed whole by a shark, or whale, ans survive for three days and nights? many whale sharks have been found with whole specimens as large as a human in their stomachs, nd some of them have been on the brink of death, but barely living. for 40 hours, it is very possible for a human to have survived with airpockets in the creature's bowels. though it'd probably be very uncomfortable, it is very possible to live inside an underwater leviathan for a short period of time. though the Bible has some pretty mirculous things, many can be explained by simple logic and simple physics.