After "the flood," how did all the animals breed?

Question

Take a pair of elephants. After they got off the ark, let's say they had 2 babies, a boy and a girl. Who did those babies mate with?

Each other?

That's incest!

You mean to tell me that every single species on Earth is the product of incest?

Impossible.

The genes of all the animals would have been so corrupted 2 or 3 generations down the line that every species on Earth would have sucomb to genetic diseases and died off.

And that's a FACT.

Answer 1

If you don't allow God into your equation, then you are correct.

Answer 2

The fact is if you believe in evolution incest still happened. Life according to this theory appeared gradually so animals would of had no choice.
In the bible's case people and animals were perfect in the beginning and then declined after the original sin.
At first they weren't as flawed and there for there offspring didn't develop deformities.
You have developed a repulsion towards incest This mental state protects your decedents. If it weren't for the consequences despite your repulsion there would be no way to argue against incest.
Now for this mental state found in people who caused it?
Some blind force with no brain, eyes, ears, or knowledge?
EDIT
You don't have to believe it if you don't want too but the fact is there use to be a lot less people then today. In fact till this day isolated cultures are made up of people who are closely related.