this post was submitted on 04 Jul 2023
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At work we somehow landed on the topic of how many holes a human has, which then evolved into a heated discussion on the classic question of how many holes does a straw have.

I think it's two, but some people are convinced that it's one, which I just don't understand. What are your thoughts?

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[–] key@lemmy.keychat.org 9 points 1 year ago (6 children)

By that argument your mouth is a continuation of your asshole... No offense.

[–] simplecyphers@lemmy.world 69 points 1 year ago (1 children)
[–] andyburke@kbin.social 18 points 1 year ago* (last edited 1 year ago) (1 children)

Some people haven't realized almost all animals are just tubes with various fancy shit glued on.

Edit: including humans

[–] Itty53@kbin.social 7 points 1 year ago (1 children)

Or put biologically, virtually all fauna are just various advanced forms of flatworm.

[–] Petrichor3345@kbin.social 3 points 1 year ago (2 children)

IIRC humans have 7 holes topologically (assuming both vsauce and my memory are correct). I'm not sure how many a flatworm would have, but I bet you could group animals by number of holes topologically, which might be interesting.

[–] key@lemmy.keychat.org 1 points 1 year ago

Two ears, mouth/anus/nostrils, urethra, optionally vagina. That's 5...what else, eye sockets?

[–] GreenPlasticSushiGrass@kbin.social 1 points 1 year ago (1 children)

Flatworms have a single opening that leads to a branching cavity (an incomplete digestive system). This means that the single opening is for both ingesting nutrients and expelling waste. While your mouth may be attached to your anus via the alimentary canal, I think it beats the hell out of having one multi-purpose opening, imho.

[–] Petrichor3345@kbin.social 1 points 1 year ago (1 children)

Right, technically a human only has 1 hole for ingesting nutrients and expelling waste as well though, assuming you are talking about the mouth and anus. Does a flatworm have any other through holes though e.g. nostrils or tear ducts? I have no idea what the biology of a flatworm is haha.

No, gas exchange is by simple diffusion across the skin and gut. No ears or eyes per se, just some photosensitive cells in slight depression on the head. Planaria are pretty simple as far as animals go.

[–] RealNooshie@lemmy.world 11 points 1 year ago

I guess we all are talking out of our asses, then...

[–] HamSwagwich@kbin.social 3 points 1 year ago (2 children)

Indeed, and when you kiss someone you are making one big hole connected by two assholes.

[–] swab148@lemmy.world 1 points 1 year ago

Anal 69s just make one big reverse-donut

[–] swab148@lemmy.world 0 points 1 year ago

Anal 69s just make one big reverse-donut

[–] jclinares@kbin.social 1 points 1 year ago

I assume that's how OP's debate of how many holes a human had ended up being about straws: someone argued that the mouth and the anus are just one hole

[–] Th4tGuyII@kbin.social 1 points 1 year ago

Given the amount of people I know who are always full of shit, I'd buy that

[–] kursis@kbin.social 1 points 1 year ago

For normal people asshole would be continuation from mouth, but I don't judge. You do you!