They donât. Thatâs their kink.
Comment on Give us your craziest ocean facts. đŚ
SatansMaggotyCumFart@lemmy.world â¨4⊠â¨weeks⊠ago
Not a fact but a question:
How do whales keep water out of their anuses when they are deep diving?
Whales have been known to dive almost 2 miles deep and at that depth youâre looking at almost 300 atmospheres of pressure and a whaleâs sphincter has to be strong enough to resist that.
disguy_ovahea@lemmy.world â¨4⊠â¨weeks⊠ago
I had to look it up out of curiosity. The rib cage and lungs of sperm whales are adapted to collapse under pressure, squeezing all the air the lungs contain into a small space and increasing internal cavity pressure.
âŚhawaii.edu/âŚ/compare-contrast-connect-deep-diverâŚ
kamenlady@lemmy.world â¨4⊠â¨weeks⊠ago
I think that also happens to humans, but without being adapted to it, itâs a one way squeeze.
disguy_ovahea@lemmy.world â¨4⊠â¨weeks⊠ago
Like a tube of toothpaste
Agent641@lemmy.world â¨4⊠â¨weeks⊠ago
Not as minty
reptar@lemmy.world â¨4⊠â¨weeks⊠ago
Wait, why didnât they get the bends?
disguy_ovahea@lemmy.world â¨4⊠â¨weeks⊠ago
They know to ascend slowly to avoid it, but it can absolutely happen.
whoi.edu/âŚ/how-do-marine-mammals-avoid-getting-thâŚ
reptar@lemmy.world â¨4⊠â¨weeks⊠ago
Ty!
Bytemeister@lemmy.world â¨4⊠â¨weeks⊠ago
They can if they do too many dives in rapid succession.
You get the bends by having a lot of nitrogen dissolved on your bloodstream due to the pressure. So itâs a function of how much nitrogen you breathe, how much pressure youâre breathing it at, and the total amount of blood (and some other tissues) in your body that can absorb that nitrogen. Divers get the bends because they are taking multiple breaths of air under pressure, there is multiple lung volumes of nitrogen cycling though the diver. Whales and other diving animals donât typically âholdâ their breath when they dive, but if they did, it would only be 1 breath of air for the entire dive. Air in the lungs is bouyancy they donât want and can potentially injure them when it re-expands. Most marine diving animals will saturate their blood and muscles with oxygen at the surface and then dive and exhale.