I take the account of Noah’s ark literally.
I find it the most reasonable explanation of what we observe today.
It explains not only the speciation we see, but also geology and weather.
Yes, I believe in the Word of God. Noah was real, we all are related to him through his sons and their wives. Water was high enough for marine life fossils to be found at high altitudes on the American continent, so that seems to indicate that seawater put them there. Of course, I can only guess from what I’ve learned from others. It was not my field of study in college.
How long can you tread water?