The Bible gives its size in cubits and says it had three decks. People have mapped it all out showing that it’s possible to put into the ark 6,744 animals: 928 reptiles, 496 amphibians, 3,676 birds, and 1,488 mammals. This covers all the animals that needed to be there, assuming that from them all species on Earth had time to evolve since 2348 BCE, which is, of course, ridiculous, let alone the idea that the great flood covered the whole globe.
Impossible objects