In the Flood scenario millions of individuals of each of 700 or more species of sea reptiles and mammals must have been sharing the same space and competing for much of the same food. Today only 88 species of cetaceans fill our oceans. One might argue that a few more species could coexist with our current species but 600 more species? Where would they all fit? On the other hand, over millions of years some species could have gone extinct as other formed from their ancestors. The gradual replacement of species with new ones allows a sustainable balance of species in the world’s oceans at any point in time.