Was Noah's Ark actually just an oversized, waterproof basket or coracle? Somebody has found a clay cuneiform tablet which takes the Noah-type story back some 4000 years, according to an article in The Atlantic.
The DrsC have seen small coracles being constructed in Vietnam, where they are used by fishermen to pole out to their fishing boats moored just offshore. I seriously doubt the feasibility of scaling up coracle design to the "two-thirds the size of a soccer field" described in the article.
Animals with hoofs would punch right through the bottom of a coracle. I believe we have a 4000 year old fairy tale or parable documented here.