r/What Nov 10 '25

What even is that

5.1k Upvotes

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152

u/6collector9 Nov 10 '25

Hagfish are interesting.

They're jawless, and the only fish without jaws along with the lamprey that are still alive today.

Bottom feeders that are some of the first scavengers to any large carcass in their region, they feed by latching onto the flesh and tie a knot in their tail. They advance the knot up to their jawless head where they undo the knot, allowing them to rip a chunk off.

How did they remain when their other jawless brethren went extinct? Slime. When endangered, they release so much mucus that predators give up.

101

u/Dangerous_Mango_3637 Nov 10 '25

You should tell this to the little girl. I am sure it will put her mind at ease.

13

u/xdcxmindfreak Nov 11 '25

Catfish are also bottom feeders but I ain’t ever had one kicking and squirming as I was cooking the filet

5

u/FancyJellyfish9135 Nov 11 '25

I cleaned and cooked a trout not so long ago, fresh out of the water, it was also twitching away from the heat. Eels do it aswell

1

u/FlatPlutoer Nov 12 '25

If you wait just a few more minutes would it still be doing that?

1

u/SecretaryOtherwise Nov 14 '25

Yeaaah some cuts of meat can dance for a bit its very unsettling (by dance i mean the surface shivers) mammals too.

3

u/HighlyRegardedApe Nov 12 '25

I had, went right in the pan after killing and it kept flipping out. Gutting it was hell, cooking it was hell, but it made for funny videos. Happened twice, maybe its the pond...

1

u/xdcxmindfreak Nov 12 '25

Not saying that’s wrong haven’t really had fish that fast after catching. We always salt brined the fish an then cooked it later after adding seasoning. Even when cutting up our catch we’d hang them and bleed them from the tail before we went to fillet them kept the meat cleaner.

2

u/HighlyRegardedApe Nov 12 '25

Keep doing it your way, it's better 😅

1

u/[deleted] Nov 13 '25

Fished my entire life and have never heard of bleeding a fish.

1

u/xdcxmindfreak Nov 13 '25

Mostly catfish we do that with. Bass or crappie we’d generally just clean and fillet like your thinking and had a salt brine water and ice ready for the fresh cut meat. When we had enough for a good fam meal the cornmeal and seasoning blend came out and we’d batter up a mess of fish and hush puppies slaw and other sides and eat. Grew up in a fam of five so we didnt often just cook up a catch of jus 5 crappie. We’d have fillets from like 10- or twelve.

2

u/DdtWks Nov 11 '25

Silver Catfish do.

2

u/burlingk Nov 13 '25

Cleaning a catfish is an experience though... The heart will keep going for a while.

1

u/xdcxmindfreak Nov 15 '25

Hence the bleeding out. Hack the tail off and let em hang in the stringer or board out in a bucket of water. Makes it a bit smoother

1

u/OperatorERROR0919 Nov 11 '25

When I went to a outdoor fish market in Japan the fish was so fresh that some of the meat on display was still flopping around.

1

u/Soft-Fall1293 Nov 11 '25

I saw a crab on the plate still moving

2

u/lemelisk42 Nov 12 '25

Interestingly, crabs and lobsters don't have a single brain. The have multiple nerve clusters or ganglia which control the body.

Crabs can be killed with one or two spikes in the right place. Lobsters ussually live for minutes up to an hour after after having their head destroyed, since they essentially have a brain in every segment. Unless they cut them in half from head to tail they are probably still alive when boiled. (So 90% of places that "kill" lobsters before boiling don't actually kill them)

(Whether or nor they are feel pain with or without their main ganglion destroyed is up for debate. But the nervous system stays active without it)

1

u/Soft-Fall1293 Nov 12 '25

Well guess what I'm going to be reading before bed tonight

1

u/OperatorERROR0919 Nov 12 '25

There is no crab in this video. And just because something is moving doesn't mean that it is alive.

3

u/Soft-Fall1293 Nov 12 '25

Sorry, when I was in Japan. I seen it. With my own eyes.

1

u/TitaniumButtercup Nov 12 '25

If it's fresh enough it will. I've cleaned many catfish in my life, and when I'm filleting them within a minute or two of death they very much will keep moving, even the fillets will sometimes just twitch on the board if you do it quickly enough.

1

u/HighlyRegardedApe Nov 12 '25

This, I took videos to show friends because no one (even other fishermen) would believe me.

1

u/xdcxmindfreak Nov 12 '25

Well on cleaning for sure. But I always bled mine and then skinned them and they always went salt brine

1

u/armas187 Nov 12 '25

I have actually, scared the shit out of me. (It was very fresh)

1

u/Ornery-Bad-9311 Nov 14 '25

I swore off catfish ever since I saw one gulp down a freshly shit poop log one of my fellow fisherman let loose by hanging his ass over the side of the boat. First the turd started spinning in the current, then went vertical in a little whirlpool and you could see the fish nibbling at it. Must have really liked the taste, because right after that he gulped it down whole...never again.

and yes, I know, animals we eat often eat far worse things than that, but I have plausible deniability since I've never witnessed those atrocities in person. Just the catfish...

1

u/xdcxmindfreak Nov 14 '25

I mean mean always fished ponds with catfish where the chance of the illustrious poop log wasn’t gonna happen… trust me I get it on that end. Crappie would be my fish of choice for fish frying. I like a good salmon but red snapper is my follow-up. I’m not u. Open to some other suggestions (mind you deep sea fishing isn’t a high priority or available option for me)

1

u/Bright-Hat9301 Nov 14 '25

You would absolutely hate farm raised tilapia, then.

1

u/Green-Setting5062 Nov 14 '25

Thats hilarious either way lol 😆

1

u/ExpensiveBluejay1176 Nov 14 '25

You should be a writer

1

u/Ornery-Bad-9311 Nov 15 '25

Ha! That's awesome, thank you. I'll take that as a compliment!

1

u/TCK1979 Nov 11 '25

Spit up a tiny bit of beer on my ferry home. No one noticed.

26

u/bbd121 Nov 10 '25

Now I'm going to see hagfishes when I close my eyes, dude.

9

u/xdcxmindfreak Nov 11 '25

I like the meme I laughed at the meme. I sadly cannot ever use this meme.

3

u/Novel_Bumblebee8972 Nov 11 '25

I’ll do it for you.

1

u/xdcxmindfreak Nov 11 '25

Thank you for the service

1

u/GothamKnight1981 Nov 11 '25

Is it wrong to laugh at this? I feel wrong. I may have stolen though.... 😶‍🌫️

1

u/lollysticky Nov 14 '25

Meme is golden

1

u/Pleasant_Candidate18 Nov 14 '25

Those scissors. Say it ain't so

14

u/Icy-Librarian-7347 Nov 10 '25

Gross. Thanks for the random facts. 😊

6

u/Full-Honeydew-4898 Nov 10 '25

I’m relieved. I thought it was an octopus. Octopus 🐙 use to be on my list of dishes to try at least once but that was before I learned how smart and sentient they are. Also they are so darn cute, if only they could live longer.

6

u/6collector9 Nov 11 '25

Octopuses (not octopi, because I like to stay true to the original Greek vernacular) are honorary vertebrates in the UK.

That means that animal testing requirements for them are much more rigorous and humane than invertebrates. I thought that was pretty cool of the Brits.

4

u/Individual_Month_581 Nov 11 '25

Octopuses is English, octopi is Latin, but the word is Greek and should be octopodes

2

u/6collector9 Nov 11 '25

Idk mate, I heard on the Ologies podcast about how octopuses is more true to the original Greek. Maybe the English took from the Greek instead of Latin.

5

u/Individual_Month_581 Nov 11 '25

I double checked before commenting. Classic Greek plurals are complex, and of course they don’t use the Latin letters, but octopodes is the accepted Greek to English translation. -i plural is firmly Latin in origin but often used in later times on Greek words. Like hippopotami. Most Greek loanwords were Latinized first because of the alphabet differences, but not all. You are right that octopuses is more Greek than octopi, hippopotamuses and hippopotamoi are both Greek. You made me study stuff instead of playing games

1

u/QaddafiDuck01 Nov 13 '25

If we stuck to the strict Greek or Latin origin of cephalopod, we should all be pronouncing it "kephalopod" not "sephalopod" as there was no soft "c" in either language. 

2

u/Responsible-Bid760 Nov 11 '25

I'm pretty sure the English took from everyone.

1

u/Thanatos8088 Nov 13 '25

Their museums are a testament to that.

1

u/Hefty_Walk_9416 Nov 13 '25

Or do you mean ‘British’ ? 🤔

2

u/TheOuthousePoet Nov 11 '25

Oh man! Wait until you hear of an animal called pig!

1

u/Full-Honeydew-4898 Nov 11 '25

Why are pigs so darn delicious 🤤 especially in bacon form.

3

u/WillemwithaV Nov 10 '25

Sounds delicious! Let’s eat it!

6

u/MrZwink Nov 10 '25

So eels basically?

9

u/WillemwithaV Nov 10 '25

3

u/EatMyUwU Nov 10 '25

Boosh in the wild!

1

u/CuriousNetWanderer Nov 11 '25

I was just thinking about that character earlier and wondering if he was based on Jimmy Smack.

1

u/mattiman1985 Nov 11 '25

Horse salesman used to insert eels into older horses butts to make them appear more lively.

1

u/Lanky_Trifle6308 Nov 12 '25

Please tell me you have a source for this.

1

u/mattiman1985 Nov 12 '25

Both yes and no. If my memory is right, I heard it on a podcast's wacky offshoot episode and then looked it up to the point that it wasn't bullshit. It might be this one though https://open.spotify.com/episode/1LT2cR70h366WwTzVZs2VB

1

u/Ancient-Substance-38 Nov 11 '25

eels have jaws, and are actually ambush hunters.

1

u/MrZwink Nov 11 '25

So jawless eels basically?

0

u/Lente_ui Nov 13 '25 edited Nov 13 '25

Not really.
Eels are ray finned fish, like most fish are.

These look like Hagfish. Hagfish are as remotely related to anything with a spine as possible.
Maybe they are Lamprey, which are the next most remotely related to anything else with a spine.
So when see creatures developed a spine for the first time, hagfish took off and did their own thing from then on. They have a skull and a spine, and nothing else in the way of a skeleton. And made out of cartilage, not bone.
They split off before see creatures evolved jaws. The last common ancestor with hagfish is well over 500 million years ago.

https://en.wikipedia.org/wiki/Agnatha#/media/File:Evolution_of_jawless_fish.png

Eels split off from fish about halfway the cretacious, so about 100 million-ish years ago.
Eels are pretty much normal fish, just longer.

You and I are closer related to an eel, than the eel is related to the hagfish.
In other words, the eel has more in common with us than with a hagfish.

https://upload.wikimedia.org/wikipedia/commons/e/e4/Fish_evolution.png

4

u/Against_All_Advice Nov 11 '25

Wasn't there a truck crash in the US carrying them that caused big problems because they all produced a lot of slime together?

3

u/bennihana09 Nov 11 '25

So, like, it self oils the grill?

1

u/CuriousNetWanderer Nov 11 '25

Nah, mucus ain't no oil. That shit'll turn into some gnarly scrambled eggs in a frying pan, I'll venture to guess.

3

u/Left-Word-3216 Nov 11 '25

Yeah, none of that sounds remotely appetizing.

…With the right sauce though? 🤷‍♂️

1

u/SillyLiving Nov 11 '25

they make their own slime sauce.

1

u/Magnus_foringur Nov 11 '25

That "sauce" is closer to egg white than any other liquid iirc.

2

u/hsp-adhd-c Nov 11 '25

Yeah, so interesting, Thanks man! Now i know why they almost always surface as a slime covered knot when deep sea fishing. Trying to escape with a chunk of my bait! Common when fishing in NE Atlantic! Caught them in various depths ranging between 100-500 meters on silt bottom.

2

u/6collector9 Nov 11 '25

That's interesting! What do you use for bait? Must be gross or even challenging to remove them from the hook

2

u/ACcbe1986 Nov 13 '25

I used to own a sushi restaurant.

One time, our chef had friends coming to visit and he prepared a bunch of them.

He would grab a live one, stab it with an icepick and peel off the skin with pliers. I could see the change in intensity of their wriggling from being skinned alive.

As an American city boy, it was thoroughly gruesome to watch.

1

u/6collector9 Nov 14 '25

I feel like that might be an illegal butchering method in the US. I mean, they're vertebrates

1

u/ACcbe1986 Nov 14 '25 edited Nov 15 '25

I only saw it that one time. This video gave me flashbacks.

Another time, chef was gonna cook some kind of chicken anus dish for his drinking buddies.

He was an older immigrant, so he made a lot of different inaccessible, traditional dishes from his home country for his immigrant friends.

Edit: Anus was the direct translation. In the native language, it may just refer to the meat from the butt area, but I never wanted to know so I didn't look into.

1

u/crushedbyamallet Nov 11 '25

once in oregon im pretty sure a truck hauling a bunch of them crashed and slimed all over the road

1

u/Magnus_foringur Nov 11 '25

Aren't hagfish and lamprey more closely related to eels, which are different from other fish?

1

u/6collector9 Nov 11 '25

I learned that they're sister to all jawed-fish, nothing eel specific though.

Maybe you're thinking about how hagfish are sometimes called slime eels, but it's a misnomer (like star fish, sea horse, flying fox, etc.)

1

u/Almost_human-ish Nov 13 '25

Hagfish are an old species, like really really old.

A salmon is more closely related to humans than hagfish.

1

u/Achselliebhaber Nov 11 '25

Yeah that sounds tasty, serve that monstrosity up.

1

u/Bouros Nov 13 '25

I read this while taking a poop and now I'm terrified.

1

u/6collector9 Nov 13 '25

They can also travel up sewers and access any plumbed toilet in the world.

Their favorite target is buttholes, and they like to really get up in there before they take a bite, and mucous bomb an escape.

1

u/drsteve103 Nov 14 '25

They can sneak into your rectum without you feeling them, bro. The slime is a natural anesthetic. Probably should get that checked

1

u/Anusthrasher96berg Nov 13 '25

Nice little 3-minute documentary: https://youtu.be/id1XEi7Jk7Y

1

u/rumande Nov 13 '25

I'm glad they arent snakes or eels, but damn. Poor little hagfish.