The Noah's Ark story makes no sense. Did Noah have to capture these animals or did they all walk to the Ark thinking they were going on a year long world cruise?
The world's continents were all connected together.
Continental drift separated the continents.
Continental drift is still happening today,& eventually all the continents will collide,& form another Super Continent.
(glassy look, staring at nothing midway away) "why, Goddidit. And now, I shall bake an angel cake, which you probably know by the term Devil's food cake" (yes, that is a real quote - smugness and all - a born-again Christian once said to my mother).
Of course with the Almighty helps my friends. You think Prophet Noah with pick them one by one. Waaa a lots of work my friends. About animals who can swim or dive longer, maybe the Prophet put them in certain place maybe. Wallahu A'lam. :)