If it looks stupid but works it ain't stupid ¯\_(ツ)_/¯
Breathing air is much more efficient than getting oxygen from the water though
@theprofprofessor, but it also makes it so you dry out much faster though, so you have to evolve a bunch of special membranes and systems to keep moisture in
@jouze, ...They live in the water, besides whales already had that
@theprofprofessor, why not both?
@Kivo765, There isn’t an evolutionary pressure as far as I know for whales to grow gills, maybe narwhals for when they get stuck under the arctic ice but it’s much easier and efficient to extend the time between needing to breathe
Whales were fish that evolved into deer then went “ima head out” and evolved back into sea mammals. True story.
Haha finally so logical memes