A Arca de Noé na Reuters

[...] The dimensions of the wooden Ark, given in cubits in the Book of Genesis, imply it was about 140 metres long, 23 wide and 13.5 high. It had three levels, meaning a total deck space of just short of 10,000 square metres (107,600 sq ft).
«The cargo capacity of such a ship would be impressive for those times and could be as large as 30,000 tons,» said Dragos Rauta, an expert at the International Association of Independent Tanker Owners (INTERTANKO).
Even so, the vessel would struggle to comply with modern marine transport guidelines, even with a few thousand creatures.
Noah and his family took along at least two of every type of animal and bird, and food for all on a voyage that lasted for months. The Bible also says that «clean» animals, or those deemed fit for eating such as cattle, sheep and goats, were taken in sevens.

Excerto do (estranho) artigo da Reuters que aproveita a próxima Convenção Sobre a Diversidade Biológica da ONU como deixa para discutir a possibilidade da existência da Arca de Noé. E ao que parece muito boa gente — biólogos, ambientalistas, criacionistas, construtores navais e «especialistas» em transporte de animais vivos — contribuiu para esta discussão. Parece que se chegou à conclusão que tal embarcação seria algo impossível. Claro, há sempre aqueles que discordam; e até incluem dinossauros nos animais transportados na arca que, ao contrário do que a Ciência afirma, ainda existiam no tempo de Noé.