Sharks are fishes, not mammals. They don’t have lungs to fill with air, so there’s probably not much of a pressure differential between the inside and the outside of the creature. Also unlike a submarine, a fish/sea mammal’s outer shell can freely compress. Well, maybe not *freely *freely, but much more so than a pressurized steel cigar
However, that does bring up an interesting (to me anyway) question : human divers need to be careful and pace themselves when coming back up from a dive to avoid getting the bends. Do sounding whales go through instinctive decompression procedures to avoid that ?
Well kick my butt … I didn’t know that and I’ve been surrounded by these beautiful creatures (blue whales and sperm whales) for days on a nuclear submarine as the sonar operator. They must of thought we were the mother ship or something lol
That’s why we come here to share and learn thank you kindly
It is nitrogen bubbles in the blood, and whales breath the same air, but it is not compressed in a tank, they hold their breath. Humans do deep dives holding their breath, and obviously do not have time to decompress.
I would say no, since whales hold their breath rather than breathe compressed air, they do not get the bends.