d
Dolphins also survive well in fresh water and have been reported thousands of miles up Australia's Murray/Darling system.
:::
That said, the story of Noah's Ark is fanciful at best and, like lies requiring more lies to keep a story afloat, needs many more fanciful additions to have it work. For example, how do the literalists explain Australia's unique wildlife? I guess our rare mountain fish (galaxia) were taken and returned in water filled beaks of pelicans or the pouches of the two chosen kangaroo's. Or maybe all the wallabies, goannas, snakes, bandicoots, wombats, lyrebirds, kookaburras, bilby's, potoroos, sugar gliders, emus, kangaroos, currawongs and the like sailed to the middle east and returned on the back of a fleet of blue whales .. yeah that's it.