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ecksate t1_iu0eun0 wrote

Spectacular corrections, but one small tidbit that's barely related but does break some reasonable assumptions: human babies, at some point in development, do some amount of breathing, and what they breath in and out is amniotic fluid (just for practice, not for gas exchange.)

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Omnizoom t1_iu0s1bx wrote

One extra tidbit to add , our lungs are very capable of exchanging oxygen and co2 with a liquid so even amniotic fluid would be able to do a chemical exchange

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DJBscout t1_iu22iog wrote

So.....why can't I breathe water then? I wanna play fish, damnit.

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Omnizoom t1_iu2n0jh wrote

Because water is a crappy source of oxygen compared to air , but if you were to breathe a oxygen rich fluid that can also absorb co2 then your body will be able to use it

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