The conversation between God and Noah
God: Noah I am sending a great flood that will cover all of the Earth so I want you to build a great boat, an Ark that will hold you and you're family and two of every creature.
Noah: OK God I can do that, one huge Ark coming up.
God: Also I want you to make it with ten decks to accommodate all the animals.
Noah: Whoah that's gonna be top heavy so it'll need to be really wide to stop it toppling.
God: You're the expert so whatever you need to do, do it.
Several weeks pass
Noah: All finished God, I'll start gathering the animals.
God: Actually, I've had a bit of a rethink on the animals, I want you to build water holding tanks on all of the decks and then net all the rivers, lakes, streams and ponds and catch all of the carp, I want every type of carp, common carp, leather carp, mirror carp, crucian carp, grass carp, Koi carp, carp of every species and fill all the tanks with them.
Noah: So let me get this straight, you wanted a huge Ark with ten decks?
God: Yes
Noah: And then build water holding tanks on all decks?
God: Yes.
Noah: And the fill the whole thing with just species of carp?
God: Exactly.
Noah: But why God, why?
God: I don't know really, just really fancied a Multi-story Carp Ark.