🗑️ 🧵 Fish literally DON'T EXIST
Anonymous at Fri, 21 Mar 2025 11:56:35 UTC No. 16624909
Fish are not an actual clade, which means that we arbitrarily exclude organisms from being called "fish" regardless of their actual ancestry. We just pick and choose what's considered a fish. Humans and salmon actually belong to the same clade (Osteichthyes), but not the same clade as sharks (Chondrichthyes), and both of these are also a different clade from hagfish (Agnatha).
If fish aren't monophyletic, then why the hell can't dolphins and whales be considered fish? They're marine vertebrates with fins that are more closely related to salmon than sharks are, so you have to pick one: either salmon aren't fish, or sharks aren't fish.
Anonymous at Fri, 21 Mar 2025 12:00:41 UTC No. 16624911
>>16624909
taxonomic threads are the best
Anonymous at Fri, 21 Mar 2025 12:04:48 UTC No. 16624914
>>16624909
all of these are fish
Anonymous at Fri, 21 Mar 2025 12:10:42 UTC No. 16624915
>>16624914
Even humans?
Anonymous at Fri, 21 Mar 2025 12:22:33 UTC No. 16624917
>>16624915
Especially humans. You are a lobe finned fish.
Anonymous at Fri, 21 Mar 2025 13:23:36 UTC No. 16624947
I agree. The root of this is taxonomists are probably the most autistic group of individuals in biology.
Anonymous at Fri, 21 Mar 2025 14:35:55 UTC No. 16625008
>>16624909
Chondrichthyes should just be called "true fish" because they're the highest taxon of fish where all members are unquestionably fish
Anonymous at Fri, 21 Mar 2025 15:10:25 UTC No. 16625046
>>16624909
>Fish literally DON'T EXIST
Fishes, OP. Fishes.
Anonymous at Fri, 21 Mar 2025 15:13:45 UTC No. 16625050
>>16624909
I mean you could just define fish as vertebrates that never left the ocean
Anonymous at Fri, 21 Mar 2025 15:26:45 UTC No. 16625059
>>16625050
But amphibious fish exist
Anonymous at Fri, 21 Mar 2025 15:56:44 UTC No. 16625094
Anon it's simple. If it has gills, it's a fish.
If it doesn't, it isn't.
Anonymous at Fri, 21 Mar 2025 16:36:56 UTC No. 16625125
>>16625094
Axolotls? Crabs?
Anonymous at Fri, 21 Mar 2025 16:46:24 UTC No. 16625133
>>16625125
Shut the fuck up.
Crabs are crabs. Not fish.
Axolotls are salamanders. Not fish.
Other things with gills that looks fish-like are fish.
There's no precise definition of a chair, and neither there will be of fish.
Anonymous at Fri, 21 Mar 2025 19:07:12 UTC No. 16625257
>>16625133
Axolotls are actually fish.
Anonymous at Fri, 21 Mar 2025 19:14:17 UTC No. 16625267
>>16624909
https://www.youtube.com/watch?v=xXm
Anonymous at Fri, 21 Mar 2025 21:42:36 UTC No. 16625375
>>16624909
>Does it live in water?
Yes
>Does it have gills?
Yes
>Does it have fins to swim?
Yes
It's literally this simple.
Anonymous at Fri, 21 Mar 2025 22:17:51 UTC No. 16625399
>>16625375
Behold, a fish!
Anonymous at Sat, 22 Mar 2025 01:33:29 UTC No. 16625503
>>16625375
So...hagfish aren't fish?
Anonymous at Sat, 22 Mar 2025 01:50:03 UTC No. 16625513
>>16624909
Fish can be defined as aquatic vertebrates with gills and lacking limbs with digits. Not that complicated
Anonymous at Sat, 22 Mar 2025 02:39:17 UTC No. 16625537
>>16625513
Behold, and amphibian
Anonymous at Sat, 22 Mar 2025 03:18:00 UTC No. 16625560
>>16625537
It wouldn't need to have "hand" in its name if the grasping fins weren't a unique feature that's lacking in all other fish.
Anonymous at Sat, 22 Mar 2025 10:24:13 UTC No. 16625692
cetaceans arent fish, get over it OP
Anonymous at Sun, 23 Mar 2025 06:28:32 UTC No. 16626419
>>16625560
They aren’t a unique feature though. Hand fish aren’t the only fish that have hands, frogfish and reef anglerfish also do
Anonymous at Sun, 23 Mar 2025 06:43:11 UTC No. 16626423
>>16624915
>he hasn't read You Inner Fish
ngmi
Anonymous at Sun, 23 Mar 2025 06:44:12 UTC No. 16626424
>>16625046
only in illiterateland.
Anonymous at Sun, 23 Mar 2025 06:48:21 UTC No. 16626426
>>16626424
>he doesn’t know about fish vs fishes
Heh
Anonymous at Sun, 23 Mar 2025 07:13:09 UTC No. 16626437
OP has a good point. Fish are about as real as concepts such as "chair" or "table". They are not actually real in a sense such as atoms are: they are just a made up heuristic categorization.
Anonymous at Sun, 23 Mar 2025 07:29:12 UTC No. 16626447
>>16625692
they could be honorary fish.
Anonymous at Sun, 23 Mar 2025 08:10:34 UTC No. 16626458
fishes are dinosaurs
Anonymous at Sun, 23 Mar 2025 08:11:35 UTC No. 16626459
>>16624909
Clads are social counteracts from atheist rationalists
Anonymous at Sun, 23 Mar 2025 10:51:54 UTC No. 16626507
>>16625692
Cetaceans are fish and so are you
Anonymous at Sun, 23 Mar 2025 12:23:10 UTC No. 16626548
>>16625375
I present you a fish
Anonymous at Sun, 23 Mar 2025 12:24:11 UTC No. 16626549
>>16625692
Define fish then
Anonymous at Sun, 23 Mar 2025 12:51:45 UTC No. 16626560
>>16625399
Where are it's fins?
>>16625503
Correct, they're eels.
>>16626548
No fins.
Anonymous at Sun, 23 Mar 2025 12:57:26 UTC No. 16626565
>>16626560
It has tail fin
Anonymous at Sun, 23 Mar 2025 13:41:46 UTC No. 16626581
>>16626565
That's a tail, not a fin.
Anonymous at Sun, 23 Mar 2025 13:48:31 UTC No. 16626584
>>16626581
It has a fin on its tail
Anonymous at Sun, 23 Mar 2025 13:51:58 UTC No. 16626585
>>16626584
Nope. If it looks like a fin, then its a fin. If it looks like a tail, then its a tail. Simple. As.
Anonymous at Sun, 23 Mar 2025 13:59:21 UTC No. 16626591
>>16626585
>If it looks like a fin, then its a fin
Yes, and it looks like a caudal fin
Anonymous at Sun, 23 Mar 2025 14:04:39 UTC No. 16626595
>>16626591
>If I keep repeating the lie, it becomes the truth
For shame anon.
Anonymous at Sun, 23 Mar 2025 14:06:45 UTC No. 16626597
>>16626595
>caudal fins are not fins because they just aren't okay???!!!
Anonymous at Sun, 23 Mar 2025 14:07:49 UTC No. 16626599
>>16626560
Horseshoe crabs have fins on their underside used for swimming.
Anonymous at Sun, 23 Mar 2025 15:03:53 UTC No. 16626643
>>16624909
non-tetrapod vertebrates
Anonymous at Sun, 23 Mar 2025 15:30:20 UTC No. 16626685
OP is correct
Anonymous at Sun, 23 Mar 2025 16:11:47 UTC No. 16626709
>>16626643
A fish
Anonymous at Sun, 23 Mar 2025 21:55:44 UTC No. 16626955
>>16626597
Correct, they're tails.
Anonymous at Sun, 23 Mar 2025 21:59:31 UTC No. 16626960
>>16626955
No they’re fins on tails
Anonymous at Mon, 24 Mar 2025 01:10:29 UTC No. 16627049
>>16626960
>fins on tails
Madness! It's either a fin, or a tail. Pick one anon.
[spoiler]Its a tail btw[/spoiler]
Anonymous at Mon, 24 Mar 2025 02:52:45 UTC No. 16627091
>>16627049
>Its a tail btw
Then why is it a fin
Anonymous at Mon, 24 Mar 2025 16:01:11 UTC No. 16627368
>>16627091
No silly, a tail can't be a fin. If a tail was a fin then it would be a fin.
Anonymous at Mon, 24 Mar 2025 16:47:36 UTC No. 16627395
>>16625050
freshwater fish aren't fish?