This is similar to other fakes. Consider this:
You can argue endlessly about getting all of the animals in the Ark, How did they get to the ark, What did they do with all of the poo… etc. But that was a long time ago and no one alive today was there. However, there is evidence that is here today that bears on the flood as revealed in the Bible.
If there had been a Noah’s ark where all animals were reduced to just two individuals – one male and one female – then the genetic variability, within all species (kind), of all animals existing today would be essentially ZERO. All animals, all over the world today, would suffer the same problem of a lack of genetic variability that the Cheetah does today. The genes of Cheetahs are so similar, one to another, that when skin grafts between non-related Cheetahs are made there is no rejection of the donor skin.
http://en.wikipedia.org/wiki/Genetic_variability
http://en.wikipedia.org/wiki/Cheetah
Yet, this is not what is found. Only a few species (kinds) have the problem of low genetic variability. Cheetahs experienced a near extinction about 10,000 years ago (down to perhaps less than ten individuals). Today they have almost no genetic variability within the species because of that near extinction.
Yet, the millions of animals around the world don't suffer from this problem. That is because they were never reduced to just two individuals 5000 years ago. They were never on an ark. There never was a general flood that caused all life, except for two of a kind of every animal, to perish. The very genes inside you and I proclaim that fact.
It is obvious that the story of Noah’s ark is a wonderful story – but just a story. It is a story of man's sinful nature and of Both God's impatience with man and of God's love for man as indicated by his regret and promise not to repeat the event.
That does not reduce the importance of the story for it is a beautiful story of God’s love for us and of his justice and regret. It is just not accurate, but it are not supposed to be. The Bible is about God’s love and about how to live a righteous life and achieve everlasting life. Don’t dishonor God by using and interpreting his written word incorrectly.