Jim, what really happened was:
An invisible being magically created two people from poof, nothing. Then they inter-married and created more people. Then the invisible being got mad and drowned all men, women, and babies except one real good boat builder guy and his family who loaded those dinosaurs up. Then they inter-married with each other and started all over. Then the invisible being was sorry he killed everyone and sent his son to preach forgiveness. Makes perfect sense.