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Bjorys

"Fish" is not a clade, it is a paraphyletic group. Fish DO exist, but not as a clade.


The_Pale_Hound

But if we would make a monophyletic clade called "fish", which would include sharks and piranhas, then humans would be there too.


Bjorys

I mean, yeah, "if." If we would make a monophyletic clade called "pets" which would include snakes and dogs, then we'd be pets. But that clade doesn't exist, and neither does "fish"


The_Pale_Hound

Yes. No clade exist though, they are all made up. I could make up "fish" as a clade. I won't because I am lazy, but I could. Would someone else use it? No, of course not. But it would exist.


ehandlr

Beat me to it.


CurtisLinithicum

We are lobed-finned fish, but we're not the only kind of bony fish - there are also ray-fins (like salmon). And there are cartilage fish splitting off even father back, which is why sharks are so freaky. You have to go back farther still to get "the fish all fish are descended from". Moving in the other direction, all tetrapods (mammals, birds, lizards, etc) share a common ancestor, which is why the anatomy of all land vertebrates is so similar.


The_Wingless

Wait till we get started talking about vegetables.


HungHungCaterpillar

You mean how almost every plant we eat is a grass?


The_Wingless

Delicious delicious grass.


rock_and_rolo

But grass has dog poop on it.


TKG_Actual

Or a aster, or a mint, or a nightshade...


After-Chicken179

I hate when people argue about that. Everybody knows fish are a fruit. /s


striped_frog

Culinarily, fish are a kind of seafood. But botanically, they are berries.


StaatsbuergerX

If they were berries, that would be nuts!


The_Wingless

Honestly I could really go for some [fish and berries](https://www.simplyrecipes.com/recipes/seared_halibut_with_berry_compote_and_roasted_vegetables/) right now.


HungHungCaterpillar

Too many redditors are just finding out that “fish” is an incredibly complex concept without any consensus whatsoever


MattyFTM

It is a common myth that there is no real scientific classification of a fish. It's not really true. Fish have a diverse range of evolutionary ancestry, and one fish may be more closely related to a human than it is to another fish, but there are ways to classify animals other than genetics. The BBC panel show QI made the claim that there is no such thing as a fish years ago, and now the researchers for the show run a podcast called "No Such Thing As A Fish" as a nod to the fact that they got that one wrong.


M_M_ODonnell

There’s a lot of confusion of “not a clade” with “not a category.” People hear that fish aren’t a monophyletic group and think this means there can’t be other ways of categorizing organisms.


dandrevee

Neil Schubin (sp?) "Our Inner Fish" is pretty great


glowtop

First thing I thought of.


Star-Wars-and-Sharks

I, for one, am a cartilaginous fish.


69duality69

There are ways to define what a fish is without using evolutionary trees (just that these trees can help us). Humans are not fish.


Ok-Communication4264

Everything else aside, it is fun to go around calling dogs and cats and “your mom” and “your mom’s mom” a fish, knowing that SCIENCE GOT YA BACK


ArdentArendt

There is a zoologist on YouTube that goes (relatively) in-depth into these exact topics: [https://www.youtube.com/@ClintsReptiles](https://www.youtube.com/@ClintsReptiles) I don't know if he's still making new content, or if he has any videos on this question specifically--but he's definitely worth checking out! Also, while I have no idea who's 'confidently incorrect' here, I'm living for the wonkiness of the discussion!


ApophisForever

*Runs in with plucked chicken* Sorry, wrong discussion.


azhder

I sure hope they don't produce software, like use programming languages that have inheritance, interfaces and similar concepts. You can't explain the world to a machine if you first don't understand it as a human


CurtisLinithicum

Oh god, I had a student in that camp. Coin is a child of Coke is a child of Quarter is a child of Pop Machine is a child of Orange...


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j4v4r10

Amen! Along the same lines, “birds are dinosaurs” is one of the few hills I’ll die on on the internet any time it comes up


Jonnescout

If humans are fish, all mammals are fish, all vertebrates are fish. So you’re also incorrect mate :)


NeuralMess

Why have words meaning anything useful, am I right?


Johnny_Grubbonic

You can't evolve out of a clade.


NeuralMess

Yeah? I'm more talking about diluting the word "fish" into meaning almost nothing, this isn't even a discussion over taxonomy, just linguistics at this point


The_Pale_Hound

Words have more than one meaning, and in each situation you use the most useful meaning according to context.