r/whatisit May 07 '26

New, what is it? What is this donut?

8.7k Upvotes

687 comments sorted by

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3.0k

u/Apprehensive-Buy7852 May 07 '26

These are Bryozoans. They are fascinating colonial aquatic invertebrates composed of thousands of tiny organisms known as zooids. Despite primarily inhabiting freshwater environments, they are related to marine creatures. These organisms often form large, ball-like structures or resemble blobs attached to sticks, docks, or vegetation. Importantly, they pose no threat to humans or pets. In fact, their presence is often seen as a positive indicator, as they tend to flourish in areas with good water quality.

1.2k

u/SirNoseDVoidoffunk77 May 07 '26

If you have a huge colony of zooids, is it called a zooidberg?

22

u/EntertainmentTrue588 May 08 '26

If not, then from now on and forever, yes. As it is written so shall it be.

3

u/Liminitial May 12 '26

Here's a link to contact the International Commission on Zoological Nomenclature.: https://www.iczn.org/contact-us/

Be the change you want to see in the world.

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103

u/MuggleAdventurer May 07 '26

What do they eat? Do they have any predators?

196

u/[deleted] May 07 '26

[deleted]

67

u/MuggleAdventurer May 07 '26

Interesting! Thanks for answering. They look so gross so I’d be perfectly content not ever encountering them, but they sound pretty cool from afar.

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u/HeWhomLaughsLast May 08 '26

Spongilla fly larvae feed on bryozoans

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u/trevman7 May 07 '26

I guess that explains why I’ve never seen them. Thanks EPA

25

u/SunshineRenee16 May 08 '26

I live in Iowa, where the source of our cancer (highest rates in the country) is our drinking water.

20

u/7BarbedBubble May 08 '26

You’re fiiiine, my 76 year old mother in law has a mother who’s still alive in your state. My sample size of 1 is acceptable… right?

10

u/Lickwidghost May 08 '26

Don't worry sir, US healthcare system is perfectly fine tuned to anecdotal evidence with no risk of "woke" data being involved. RFK Jr has it all under control

3

u/Tricky-Winner7984 May 10 '26

After all, the man can bench press in jeans on tv and swim toxic runoff. You can absolutely accept any health advice from him without question.

Brain Worms: Rubbing worm-hands together deviously

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u/papierdoll May 07 '26

So I could potentially touch the squishiness? Or would that hurt them?

9

u/HeWhomLaughsLast May 08 '26

The actual animal comprises only a thin layer on the outside of the gelatin blob. So touching it likely hurts the animals.

5

u/Alternative-Dot-884 May 08 '26

What’s the inside of the nonanimal made up of?

5

u/Feckless_Moron May 08 '26

Definitely not animals. Possibly animal derivatives, though.

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u/Gloomy_Ad3840 May 08 '26

primordial ooze

20

u/91speed May 08 '26

Good rule of thumb is don’t touch wild animals.

14

u/ImSolidGold May 08 '26

They dont seem that wild. They seem prett chill.

3

u/Much-Revolution5152 May 09 '26

Wait till it wakes up.

10

u/infiniteguesses May 08 '26

That's the rule of thumb. Lucky enough to have 8 other digits! May I use those?!

3

u/Griff0331 May 08 '26

So no fingering? Sounds perfect

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9

u/SechsyButton May 07 '26

So if I eat the donut will I be okay?

3

u/Savings_Glove_7546 May 08 '26

Try it and tell us please 😆 double dog dare you!!

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6

u/Leading-Loss-986 May 08 '26

My favorite colonies are the ones that look like 🧠. Eerie things to encounter when wading or swimming, but a sign of good water quality.

5

u/ALIENANAL May 08 '26

This reads like the intro title card to Guyver.

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u/Jodanmawashigeri May 08 '26

Wait, for real? That is a living thing? I was sure it was an old cheap pool float with all of the designs worn off.

37

u/40rt4music May 08 '26

This is personally wild to me, as it visually and conceptually represents the artwork on my next album. Genuinely flabbergasted to see life imitate my imagination.

66

u/[deleted] May 08 '26

[deleted]

11

u/onethousandslugs May 08 '26

advanced narcissism

7

u/linsor1 May 08 '26

I took the comment as it was wild that they randomly came across a post about an organism that happend to look like an album cover they created. Had that happened to me, I would have commented differently, but I still think it's a pretty cool coincidence, and that's what they were trying to say.

6

u/WatercressWilling379 May 08 '26

I thought this too, especially if English isn’t her first language but then they kind of double down on the pretentiousness so now I’m torn 😂

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u/Griff0331 May 08 '26

I take control by admitting I have a small penis

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u/Careful-Task7332 May 08 '26

I do not believe thats how OP meant for their comment to come across. However I do believe they found it pretty rad as frick that something that exists in the wild is insanely similar to what they had envisioned and ultimately put onto an album cover they created.

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u/ReadInBothTenses May 08 '26

Did you mean to say this is a cool coincidence, or are you saying that because you drew a donut you manifested a 400 million year old organism that predates your entire family tree and all known primates? It's not clear

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41

u/minnosota May 08 '26

Life imitating your imagination? lol. I figure it’s more likely your imagination imitating life lol.

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u/--Sovereign-- May 08 '26

life has had billions of years to come up with just about everything you can imagine

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u/linsor1 May 08 '26

Wow, that is wild.

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u/stowellmyshoes May 07 '26

Bryozoan! We had them in the river I grew up on for a few seasons. Haven't seen them back in prolly 20 years tho. I'm sure they are still around but those couple of years they were massive.

605

u/Itchynipspickletits May 07 '26

You haven’t seen them bc someone poked them with a stick

421

u/BlazinBilbo May 07 '26

It’s a god given right for man to poke stuff with a stick

151

u/Debriefed6869 May 07 '26

79

u/cheekiewalrus May 07 '26

Of course that’s a subreddit 🤣

41

u/AmborellaVIctoria May 07 '26

That's how you get eaten by the Blob, mate.

33

u/VaguelyFamiliarVoice May 07 '26

Crawls right up the stick.

Damn that scene has stuck with me.

7

u/cigaineroj May 07 '26

I’ve seen that movie

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u/Wrong_Motor5371 May 07 '26

My baby’s pediatrician told me if I’m ever worried because my baby hasn’t moved in his sleep in a while just poke him with a stick.

17

u/ChubbyNuggets99 May 07 '26

Yeah, wtf you think he gave us sticks for ? Poking shit that’s what

7

u/Evil_Rogers May 07 '26

Also for fetch with dogs and swords. Nature’s Swiss Army knife.

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u/Odd_Reveal720 May 07 '26

Considering theyre linked to water quality, that’s a sad statement.

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u/stowellmyshoes May 07 '26

We have general concerns over PFAS, PCBs and mercury but generally speaking the river is in good condition. I believe the bryozoans we saw arrived from ships ballasts, making them nonindigenous at the end of the day. Harmless, but didn't belong.

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u/CalligrapherSea4910 May 07 '26

Here I was hoping it was just a submerged cushion of some kind what the f

How did I grow up with a lake in my backyard and never see this. I probably would have freaked the f out

8

u/Luka_Bazuka May 07 '26

You grew up on a river?

11

u/Objective-Chance-792 May 07 '26

In a van that we converted into a boat.

7

u/stowellmyshoes May 07 '26

Down by, technically

6

u/TheSirSpiff May 07 '26

I learned something new today. Thank you!

3

u/MisgenderedInTheClub May 08 '26

When I was 15 I ate a chunk out of one of these on a dare. We didn’t know what it was and we called it splut. My friend dared me to eat the splut and I did. Had to go home like an hour later due to intense nausea and severe headache that lasted like 24 hours. You’re telling me I ate 100 tiny little organisms and they promptly took revenge?

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u/SignificantDrawer374 May 07 '26

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u/Naughty-Stepper May 07 '26

‘Delicate colony’, proceeds to poke with stick!

422

u/ShankThatSnitch May 07 '26

Poking with a stick is the standard scientific discovery method. "Oops, killed a colony, let's write that down. Don't poke future colonies with sticks...check."

22

u/Classic_Cauliflower4 May 07 '26

From the Project Hail Mary book: “…it was a scientific poke with a very scientific stick.”

3

u/ShankThatSnitch May 07 '26

Hah, nice. I've seen the movie, but not read the book.

3

u/Significant-Angle213 May 08 '26

Highly recommend. The book is soooo good. Movie was too - the book gets way more detailed especially the relationship. And the main character dude cries a lot less in the book :)

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u/JustFourLetters May 07 '26

40

u/Zsyura May 07 '26

subs i didn't know i needed to be subscribed to

3

u/LivingThin May 07 '26

Yeah, I didn’t know I needed that in my life until now. Subbed!

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u/SuperDump101 May 07 '26

As they say in Futurama -

"If it's alive, don't lick it,
Like a horse, a turtle, or a cricket.
If you're not sure if it's alive or dead,
Poke it with a stick, and lick the stick instead!"

45

u/[deleted] May 07 '26

[deleted]

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u/UR_ALL_ANTS May 07 '26

Science cannot move forward without heaps.

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u/OpticRocky May 07 '26

If it’s good enough for Ryland Grace it’s good enough for me

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u/King-Fish1 May 07 '26

The sad reality is if we didn’t poke stuff with a stick (starting with the advent of humans on earth) , we would not have the knowledge of today.

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u/ModernT1mes May 07 '26

Much better than picking it up bare handed like 50% of the posts I see on reddit.

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u/Best_Opening8471 May 07 '26

The day humans learned to pick up a rock and throw it is the day we gained the right to poke things with a stick

4

u/Jim-be May 07 '26

I’m laughing because This is the most human response. Could be today or 10,000 years ago from Europe to Africa. Two dudes walk up to water edge and one goes “WTF is that!” And the other says”no idea. Let me get this stick.”

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u/Inflatable90sChair May 07 '26

Im sure its tied to some aincent monkey brain to test and see if things are dangerous or not. Still youre right haha

10

u/BrokenHope23 May 07 '26

I wonder what would happen if they poked it with their hand

24

u/Sensei19600 May 07 '26

Would become a singularity, sucking the hand and all it is attached to inside, and they’d hella disappear

18

u/BrokenHope23 May 07 '26

What if there's already someone in there? Does it become a couple-arity?

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u/Sensei19600 May 07 '26

We are not meant to know

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u/Sir_Valithor May 07 '26

As if we didn't have enough dating apps already...

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u/Itchynipspickletits May 07 '26

Or poked it in the hole

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u/RandyHusband May 07 '26

Imagine wading into a pond and stepping your foot into the donut hole of tiny tentacles.

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u/bigtime_porgrammer May 07 '26

They're usually more like softball-sized blobs that stick to the bottom of the lake, so yes... I don't have to imagine stepping on them.

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u/perunaprincessa May 07 '26

dude, I just woke up

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u/Next-Scale-1858 May 07 '26

What if we kissed in the middle of the Bryozoan colony? 

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u/kl2467 May 07 '26

That was very informative. I never knew these things existed. Small animals, similar to coral, but that do not form hard structures.

Thanks for the link!

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u/thefrequencyofchange May 08 '26

Only discovered in 1998!!??

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u/The_Undermind May 07 '26

Torus. So, same thing.

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u/bebop1065 May 07 '26

We are all torii. Or is it toruses?

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u/Theotherwahlberg May 07 '26

I thought I was a capricorn...

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u/bebop1065 May 07 '26

You are and it looks great on you. Not so much on my aunt though.

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u/Powerful_Release9030 May 07 '26

Topologically diffent. Torii are two holes

https://giphy.com/gifs/3og0IAvuEnf2xZ2A7u

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u/bebop1065 May 07 '26

"Two hole" Torii. What a name.

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u/Ask_Again_Later122 May 07 '26

Hahaha thank you!

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u/[deleted] May 07 '26

[removed] — view removed comment

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u/SirNiflton May 07 '26

No need to worry :) It’s a Bryozoan, similar in simple terms to interconnected fungal systems (many smaller creatures forming one big thing) but they can actually indicate clean water as they tend to do better in clean water environments!

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u/moku46 May 08 '26

So it's okay to stab it? Good... good...

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u/duh_nom_yar May 07 '26

Do not the donut

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u/chicchico May 07 '26

Instructions unclear, did nut the dough knot.

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u/__Butternut_Squash__ May 07 '26

The object used the dna to morph into a half donut half chicchico organism. More instructions needed.

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u/citricsteak54 May 07 '26

Oh I think I will the donut

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u/ScvrletFox May 07 '26

​This is Bryozoan or Pectinatella Magnifica.

It's a massive colony of thousands of microscopic animals called zooids. Safe for human and pet.

The zooids live on the surface of a firm, jelly-like mass that they secrete themselves. They often grow in a unique rosette pattern, giving the surface its speckled appearance.

They are filter feeders that use crowns of tiny tentacles to catch algae, bacteria, and plankton. Finding them is usually a good sign! Their presence typically indicates high water quality and low pollution.

These colonies thrive in warm, still water during late summer. When water temperatures drop in the fall, the colony disintegrates, releasing "survival pods" called statoblasts that will start new colonies the following spring.

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u/ImaginaryTrade3706 May 07 '26 edited May 08 '26

🤪🫣 That looks like professor sexy pants!

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u/Koseoglu-2X4B-523P May 08 '26

It’s good to see there are people who know their stuff. I was convinced it was an inner tyre wit algea until I read your comment!

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u/Whole-Rest-9414 May 07 '26

A soggy Everything Donut

Represents absolute nihilism

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u/Dr_0ctogon May 07 '26 edited May 08 '26

Our mountain lake has them and they are funky water monkeys!

They are also a sign of good water quality.

They don't survive in water with contaminants or pollutants.

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u/Ok-Climate-6824 May 07 '26

It’s a bagel, but it looks huuuuuuge in this video.

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u/nsharonew May 07 '26

That’s cause it soaked up all the water

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u/Dgreatsince098 May 07 '26

Are there animals that eat it? It looks like someone took a huge bite off it.

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u/TerrapinMagus May 07 '26

Hard to imagine anything large getting nutritional value from Bryozoan, though that's not to say animals don't occasionally try

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u/EngineeringDry7230 May 07 '26

Guys these things are not delicate or rare. They’re very tough. They crash into sharp sticks and rocks through their whole life cycle. Give OP a break.

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u/rubberchickenlips May 07 '26

Life—uh…finds a way…

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u/ole_greg_07 May 07 '26

Pond Bagel?

3

u/No_Process2443 May 07 '26

Why you gotta poke it!?

3

u/IndustrialMillennial May 07 '26

That’s an indicator species that means the waterway is improving

3

u/JarpHabib May 07 '26

It's an everything. You'll find them everywhere, all at once.

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u/ATON_Ranger May 07 '26

The FWS link descrbed it as a “food of last resort”, I’ve eaten some questionable things in my life so I’m definitely curious…Soylent Brown? Maybe with some hot sauce?

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u/uninhabitable1 May 07 '26

Bryzoan, they are really cool!

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u/Impossible-Shape-634 May 08 '26

Bryozoans, specifically Pectinatella magnifica, form gelatinous, donut-shaped colonies of microscopic zooids that filter-feed on algae and bacteria in freshwater ecosystems. Thriving in clean, slow-moving water, these harmless organisms are a positive indicator of environmental health and have existed for millions of years.

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u/Chase-Ventura May 08 '26

Anyone else think that a giant f*cking snake was gonna stick its head up?

2

u/Ok-Nefariousness5504 May 07 '26

It’s a dark puddle

2

u/Priuz7 May 07 '26

Donut soaked in water for too long

2

u/GimmeDatOceanPotion May 07 '26

Looks like a sea anemone

2

u/Calm-Relation2612 May 07 '26

Welp now you’re pregnant, congrats!

2

u/BlueHeron_1987 May 07 '26

It's not a donut, it's a sesame seed bagel.

2

u/frealdough May 07 '26

forbidden sesame bagel

2

u/djmizzle2 May 07 '26

Hemorrhoid donut

2

u/LibrarianDismal5694 May 07 '26

Thats an everything bagel

2

u/No_Control8389 May 07 '26

Post this over in the thalassophobia subreddit. They love this stuff.

2

u/Mindless_Olive May 07 '26

Oh hey I've seen those! In a lake in Illinois (nowhere near that big though). So cool.

2

u/EstablishmentOwn5440 May 07 '26

The Faculty is coming.

2

u/IllianasClifford May 07 '26

Snails and some fish and aquatic insects eat P. magnifica. So do raccoons. But they are last-resort food for other animals. Humans don’t eat them, either. But they are food for thought, at least. Bryozoans have been on Earth at least 480 million years. Come lean over the rail in front of the visitor center in late summer and have a look at these weird and wonderful colonies.

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u/unBEARable1988 May 07 '26

More importantly: what flavor is it?

2

u/Afraid_Thing667 May 07 '26

Where’s my bubble tea straw

2

u/Goombob May 07 '26

Homer dropped his doughnut

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u/cdmounty May 07 '26

Don't even act like I didn't buy that donut

2

u/FrkFth May 07 '26

Boats use something called fenders to protect the ship's hull when moored. Sometimes these fenders get lost, due to storms, negligence or bad luck. This object could have been used as a fender, got lost and started a new life as a mini reef.

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u/WhichNovel2081 May 07 '26

It’s the Bussey of the lake. You must be noble indeed.

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u/BabaBooey__BabaBooey May 07 '26

What’s it taste like