Can Christianity explain how animals are so locationally diverse

[Colanth]

What makes you think Australia was inhabbited during the flood?

The word that translates into 'earth' in the english mean the known world or whole inhabited earth.

Actually the best translation into English is "world". (You DO read and understand Hebrew, right?)

Your claim sounds like the claim of some Hebrew-illiterate Christians who claim that "yom", Hebrew for the period from one sunset to the following sunset, as used in the Bible to describe how long it took God to create everything, actually refers to time periods that are longer than a day. Or the Christian claim that "Shabbat", the day God tells us to keep holy, can be some other day, like Sunday. (Shabbat is the name of the day that comes before Sunday, it's not a linguistic equivalent of "the day of rest".) You, and Christianity as a whole, acts as if no one else actually understands Hebrew.

If Wicked man or 'Men of great renoun' (The actual target of the flood) had not made it to Australia then why should it be flooded?

Because your Bible says "all the land", not "all the land in which there were wicked people" or "all the known world". (Do you actually think that the creator of the whole universe didn't know that he had created Australia? The entire planet would have been his "known world". Your only out is that the Bible isn't his word, it's the word of some men who wrote it, with no "godly" inspiration.)

If I remember correctly from my years of indoctrination as a creationist, the "theory" is that there were "ice bridges" that conveniently connected all the continents long enough for the animals to get to them.

Kinda like the 'ice bridge' that allowed man to walk from asia to North America and later become Inuit and Native americans??

No such thing existed. Berigia was dry land, not ice.

"Ice bridge in my theory

Theory? What theory? An assertion isn't a theory. If you have a "flood theory" please post it - along with all the scientific evidence you have. (The Bible isn't evidence of anything more than that some men wrote some words.)

Noah's Ark has nothing to do with the day to day of Christianity. It is OT Judism.

So is the prohibition against homosexuality (if you misread the OT). So I guess you'll drop your objection to that.

And there's nothing in the NT against abortion either. (Or in the OT - it's just a civil tort - against the husband - there.)

BTW, you DO know that the current OT is actually a compilation of four different books, maintained by four different peoples, and only became a single Bible during the Babylonian Captivity, right? (Which is why we have 2 different tales of Genesis, and the compromise that Adam brought Isaac before God but didn't kill him.)