check how insects breathe
they don't even have lungs I think
check how insects breathe
they don't even have lungs I think
Yeah they have tiny holes called spiracles in their abdomens, which are each connected to multiple branches of trachea that go directly into their tissue
What is a nose and lung if not eating the air?
If inhaling is eating, then exhaling is pooping
And if we exhale CO2, then soda technically has poop bubbles in it

So we're eating poop in the air then because we're breathing CO2 in as well.
everything is poo
the poo of stars
Thanks for that thought
This is genuinely one of the coolest things I’ve learned about evolution. Thanks for this! There’s always that step that I’ve seen brought up about fish moving to land, but I can’t recall anyone mentioning in context about the oxygen depletion in water.
It’s almost covered in Bill Wurtz’s History of the World: https://youtu.be/xuCn8ux2gbs?t=190
Humans are only walking digestive tracts. From an evolutionary perspective, all other organs originated from a primitive gut and have only one purpose: to serve it.
You could go deeper and say that all organs including the gut's purpose is to serve the gonads.
Wait until you hear about a proposed new emergency method of keeping patients with respiratory failure oxygenated: enteral ventilation.
Basically they put 1,5 l fluid into their asses just to check if its feasible, without oxygen yet. Meanwhile, porn industry shoves anything up their bottoms, from fluids to bottles to pickle jars. Real question would be if oxygen would be absorbed in a meaningfull amount. What an oversight.
Well, that pickle jar didn't get absorbed very well...
When the pickle jar leaves the anus, we mark it a success.
Human Centipede Brings Us Closer to Breathing Through Someone’s Butt
Both the esophagus and the gut are part of the digestive system. To have the lungs fold out from this system before the stomach makes the most sense.
lungs evolved out of the digestive system
this is blowing my mind
Seems more like your mind is being digested
Bird lungs are crazy too
birds are basically balloons
Why did you think we eat and breathe through the same orifice?
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