Let's think about Noah's Ark and the great flood of the bible; breaking things down to try to understand if it is possible for a family of eight to build a boat large enough to load, transport, feed, and care for all the dry land species on the planet, for an entire year and then some. Let's take into account, the actual construction of the ark, the crews ability to build the ark, the ages of Noah and his family, the amount of precipitation that it would have taken to flood the earth, what things would have looked like once the waters receded, and the possibility that one family could reproduce after the flood to repopulate the entire human species.