It’s ridiculous, there are grown adults who seriously believe, and will try to defend the claim, that the entire Earth was covered with water, because a god got so angry with humanity, that it drowned every living thing.
Even if you could rekindle an entire species from just two individuals, even if the Ark was big enough to house thousands of animals, and their food, even if Noah was the owner of the only boat on the planet, there’s no evidence of a global flood ever having occurred, ever, there’s no evidence for a god or gods, and there’s no evidence of a genetic bottleneck in every species on Earth.
It’s a myth, a fantasy, an ancient story, dreamt up by people who had no idea how things work and didn’t want to admit to their ignorance, so they invented stories in place of facts.
Seriously, where did Noah keep all the temperature and pressure controlled aquariums? Most species of fish have quite specific water quality requirements, and that’s just fish, other aquatic life has similar, if not more stringent, needs. Some need a particular level of salinity, others temperature, or pressure, many are specialist feeders, coral needs a very specific amount of sunlight in order that the algae it symbiotically lives with can photosynthesise.
These animals would need specialist care, because the sheer volume of rotting corpses, floating about, festering away, would have spelt doom for them all.
And yet, grown adults need it explaining to them that penguins did not waddle all the way from the Middle East, to the Antarctic.
The alleged flood of Noah is an ancient hoax meme, one that is so simple to debunk that I cannot understand why it still needs to be done.