It doesn't so they ignore it, as they do all things scientific which disprove so much of the Bible.

The story is very primitive and everything about it is questionable. Where did the water come from and where did it go? An ark that big would have broken up as did large wooden boats a couple of hundred years ago and they were built by boat-builders with more skill than anybody in the distant past. How did the animals get to Australia that were so much different than those found anywhere else? It is BS unless your just pointing out the preposterousness to a true believer.

I also wondered how the herbivores ate after the landing because it would take at least 3 months before edible plants were back. Also, that the carnivores would be eating those herbivores. Also that there would be no drinkable water.

Only for about 3 seconds then I realized it was bullshit so I stopped wasting my time