Nikolas - The one important piece of data that anti-flood folks generally leave out is that if God can make the universe, and if he can make bears that hibernate for months at a time, why couldn't all the animals simply hibernate or fall into a suspended animation during the voyage?
If God can make the universe (and, by the way, install all of its immutable laws and then violate them at will) and could make all the animals go into hybernation (you do realise that hybernation of a large animal only decreases the rate of consumption of its muscle and fat reserves, don't you) then why wouldn't he just create a miracle to rid the world of evil without going to all the trouble of killing all those innocent children and animal life? He'd also have to work a double miracle with hybernation. A hybernating bear over the course of a typical 90 day hybernation period will consume 22.5% of its body mass. In extreme cases when winters are atypically long, say 120 days, he will lose up to 30% of his body mass and be much weakened on emergence. Almost double that for the time the ark was supposedly afloat and the animals would not survive. Maybe if God installed suspendended animation cryonics on the ark? C'mon.