As Christians, we are all familiar with the story of Noah and the ark.  There are similar stories of a great flood in other religions and many parts of the world.  Most scientists can't except the idea of a flood that covered most of the world so they assume these stories are based on a flood that occurred on a much smaller scale and stories about it were passed from people to people until the story was being told all over the world.

Recently, some researchers have been finding evidence to back up the stories.  Large rocks in New England that were supposedly carried there by glaciers during the ice age but many are rounded like they would be if tumbled by water.  And dead animals from many climates and different parts of the world found together in caves high up om mountains in various parts of the world appearing to have been carried there by a great wave.