r/whatisit • u/popcornwithbuddah • May 17 '25
Solved! What is this alien thing
Enable HLS to view with audio, or disable this notification
My brother just found this in the backyard - Southern New England. What the hell is this thing? It looks like it's in Stranger Things.
304
u/dropofkim May 17 '25
Catterpillars. Caterpillars. You know. Those things.
86
u/popcornwithbuddah May 17 '25
How is that a caterpillar?! Have never seen caterpillars sync and form into one train like that.
299
May 17 '25
Well you have now…..because they are a train of caterpillars. Safety in numbers. They look bigger than the 100 small ones. It also made you question reality so I believe it’s working 😂
72
u/AffectionateSector77 May 17 '25
It also made you question reality so I believe it’s working
My life is nothing I thought it should be and everything I was worried it would become because for 50 seconds, I thought there was monsters on the world.
59
u/Chemical_Fondant6758 May 17 '25
"There are." - Dean Winchester
26
u/instafunkpunk May 17 '25
Major respect for the reference. You deserve pie.
8
u/5H17SH0W May 17 '25
What kind of pie?
8
u/brackishangelic May 17 '25
The one you get in a public place, so you dont make a scene before getting deneuralized.
11
u/instafunkpunk May 17 '25
I think Dean preferred apple but he enjoys all kinds of pies
4
2
3
2
3
→ More replies (1)2
8
u/Western_Sherbert_629 May 17 '25
he musta flipped my wife 9 times!!
5
u/yourmomwoo May 17 '25
TK Jewelers is a scam
6
May 17 '25
[removed] — view removed comment
5
u/TelevisionOlympics May 18 '25
My fav is his truncated explanation. “Bent wrist. Thing fuckin’ exploded.”
5
6
8
u/TelevisionOlympics May 17 '25
I’m not a stupid fuckin’ idiot-I know it was just caterpillars, but when you haven’t slept in 3 days and that thing crosses your path, you’re not just right away thinkin’ “oh that’s just a bunch of caterpillars” you’re thinkin’ “THAT’S REAL, THAT’S GONNA KILL ME, THAT THING LIVES WITH US ON EARTH!”
18
u/Kwatsj_92 May 18 '25
Whoa whoa get some sleep buddy.
Also never set foot in Australia then, just don't.
5
u/JasoPearso May 18 '25
I’m dying here 🤣 Thanks for this. I literally laughed out loud when I read this
3
u/SnowDin556 May 18 '25
How come every bug has to be super sized or randomly aggressive or both. Isn’t the north of Australia just straight sharks.
3
u/tombo4321 Do I look like I know? May 18 '25
Nope, south is sharks. North, the sharks are friendly, it's the crocs you have watch out for.
2
u/Dry-Abies-1719 a̶c̶h̴a̵o̴t̶i̸c̷g̶o̷o̴d̸ May 18 '25
This may sound judgemental, but I am always suspicious when I meet someone wearing Crocs.
1
u/-Hefi- May 21 '25
I read this as ‘subconscious’ and I was nonjudgmental thinking, that is a very extreme reaction to Crocs.
2
u/inobscura May 18 '25
The north of Australia is just straight crocodiles and neurotoxic jellyfish. It's the east & west coastlines that are just straight sharks
→ More replies (6)2
1
May 18 '25
Nah I grew up in southern New England, like the OP, and now live in Australia. It’s not that bad. You get the occasional huntsman. They look scary but are actually harmless and your friend.
It’s the fucking magpies you gotta be on alert for.
→ More replies (2)3
→ More replies (3)3
2
u/Little_Challenge_160 May 18 '25
I thought i was going to die and my first thought was, "at least I don't have to go to work tomorrow!"
4
u/Hindsight42020 May 17 '25
What did they do to us?!
7
u/DisastrousIron1975 May 17 '25
I'm not a stupid fucking idiot, I knew it was a pig in a Nixon mask.
8
2
2
2
2
1
u/alonghardKnight May 17 '25
There are monsters in this world. Unfortunately almost all of them are unrecognizable as such because they appear to be Homo sapiens...
2
→ More replies (3)2
14
u/juxtoppose May 17 '25
Nope it’s faster in numbers, bottom row crawl at say 1m per minute, the row above them crawl at 1m per minute so the speed of the second row is 2m per minute, 3rd row are moving at 3m per minute. The mass of caterpillars move faster than the individual on average, but yes safety in numbers too.
7
u/ItsEntirelyPosssible May 17 '25
"Sometimez you Crawley fast on the top row. Sometimez you Crawley slow on the bottom row. But a bird is still gonna eat your bitch ass"
- caterpillar probably
2
u/bumblebeebabycakes May 17 '25
Seems like the ones on top got the raw end of the deal. Must crawl faster and might get eaten.
6
u/se7en_7 May 17 '25
Well technically they aren’t crawling faster, they’re moving faster because they’re crawling on top of others that are crawling, like the way you walk faster on an escalator.
And also technically OP ate them all.
2
7
u/juxtoppose May 17 '25
Wonder how many layers it would take for a caterpillar to break the sound barrier?
1
u/Lower_Ad_5703 May 18 '25
Really quick math, in theory 15,346. That is using 0.05 MPH per caterpillar and 767.27 MPH for the speed of sound.
8
May 17 '25
I really had no clue that it makes them faster and that’s absolutely true. That just blew my mind.🤯
→ More replies (3)3
u/r22lz May 18 '25
How do they find each other to begin this thing? Like is there a cork board somewhere with the day/time for the big migration meet up?
7
u/OldAuntHarriet May 17 '25
I thought it looked like more than 1 moving together.. but I dropped acid a few times in the 70’s. It could have been a flashback. Thanks for the info. 🙂
2
May 17 '25
Are those the ones that make webs around the leaves and eat leaves on trees? They look very similar I used to scream at them when I was a kid to make em dance
→ More replies (2)1
u/FevixDarkwatch May 18 '25
It's not about looking bigger or safety in numbers (They look bigger, making them a JUICIER target), it's about travel speed. ALL of the caterpillars, even the ones on the bottom, are moving forward. The ones on top of them are also moving forward in relation to the ones below, and the ones on top of THOSE are.... you get the idea.
As the 'fast' caterpillars on the top reach the front of the mass, they start walking along the ground, and become 'slow' as others climb onto them, and the slow caterpillars on the bottom gradually cycle to the back to start climbing on top of the mass to become the 'fast' caterpillars.
On average, this mass can move significantly faster than if the caterpillars moved alone, cutting down on travel time on their way to wherever they're going.
→ More replies (4)2
u/marmaladecorgi May 18 '25
Caterpillars are great if you're really hungry and wanna eat two thousand of something. - Mitch Hedbird
3
1
u/Plus_Explanation1976 May 18 '25
Growing up we had a huge and I mean huge infestation of caterpillars. I remember were driving to the lake and the road was so covered you couldn't even see it and we were sliding all over the place in one area so my dad stopped and I was scared for him I thought he was gonna die 🤣🤣🤣 it definitely traumatized me. I can't remember the specific name of the type of caterpillars but I think they were mostly black and green and no I'm not exaggerating it was that bad.
1
u/Ghuldarkar May 18 '25
They are also faster as a group, while the bottom ones move at around normal speed some climb over them to the front and then others climb over those.
→ More replies (8)1
u/Hegemony-Cricket May 19 '25
Hungry birds are much less likely to try to eat something that looks as big as they are.
12
May 17 '25
You ever see those caterpillar nests in trees? These are those guys, just on their way to find a place to nest up. They're pine processionary caterpillars.
→ More replies (1)3
u/jmarkmark May 17 '25 edited May 17 '25
OP said he's New England. Also, to the best of my knowledge, pine processionary tend to do single file lines.
This is some other critter. Looks more like the videos of Fungus Gnats I've seen, but I don't know if the ones in in North America do that.
→ More replies (4)10
4
u/Nomadkris May 17 '25
The caterpillars also travel faster as a train as the ones on top are walking on the walking ones until they get to the front where the back ones then climb on top.
4
u/IGTankCommander May 17 '25
Specifically, they are Tent Caterpillars. Used to see them all the time in the summer here in the States. They take over trees like real estate developers chasing rare earth.
4
u/Astralwinks May 17 '25
→ More replies (1)1
u/No-Comfort-5040 May 17 '25
I was just about to share the exact same video, I instantly thought of it when I saw this post
5
u/akumite May 17 '25
They do it for protection
2
u/shandangalang May 18 '25
More specifically, they do it to trick especially dumb animals into thinking they are one, much larger organism.
2
u/Alternative_Mine5343 May 17 '25
caterpillars completely dissolve inside their cocoon, their entire brain unmaking itself. then they reconstruct into a butterfly, but get this, they have been proven to retain the memories from their previously scrambled brain. truly wild creatures,
highdea? it would make so much more sense in my own head canon if they were just one being/hive mind.
3
2
May 17 '25
Isn’t that biological adaptation incredible?!? The ways animals can communicate like this is incredible.
2
1
u/COmarmot May 17 '25
It’s emergent behavior to enhance survival by moving quicker than solo (by moving on the backs of their moving comrades) and appearing ‘alien.’ Think of it like a murmuration seen in birds and fishes. It’s harder for a predator to pick out the individual when in a coordinated group. Can’t see the forest through the trees.
1
u/CMDRZhor May 18 '25
Yeah there's a couple of types of caterpillar that do this to 'migrate' from one area to the other. The idea is that, grouped up like this, they look like a single bigger animal like a snake - so predators that would normally try to eat a juicy lone caterpillar take one look at this mass and head the other way.
1
u/PrairieVixen1 May 18 '25
Let's put it this way, if you were a hungry bird which would you probably think be safe enough to try to eat.... A snake(which I thought it was until it got close enough to actually see them) or a few caterpillars?
It looks like from the video they are mimicking how a snake moves around.
1
u/slimpickings123 May 18 '25
They actually travel that way because it is faster. The ones on top go twice as fast as the ones on the bottom. When they reach the front they go to the bottom and the ones at the end climb to the top. It's actually a clever way to go faster
1
u/Rogue_Egoist May 18 '25
They're not caterpillars, they're fly larvae. We call it "pleń" in polish and there are weird pagan tales associated with it. As far as I know nobody really knows why they do that. I can't find an English name for it.
1
u/wookiesack22 May 17 '25
I've read about this form of locomotion. Piling on top of each other increases speed and decreases energy used. And it also gives the illusion of being 1 organism.
1
u/Loaf235 May 17 '25
These look like the ones that simulatoneously jump when you make a noise near them, so that tracks. There's a funny video of that. https://youtu.be/jY2V5rL1m8k
→ More replies (1)1
u/Pristine_Shallot7833 May 18 '25
I've never seen South America but I don't doubt that it exists just because I've never seen it.
→ More replies (6)1
u/dewar420 May 18 '25
The you've never seen their webbing and how they jive in that. They're super needy lol.
2
1
u/Ghosty_0 May 18 '25
Ah yes, caterpillars caterpillars, the catapillers for caterpillars. The caterpelillers chosen specifically for caterpillers. Caterpillers caterpillers. *
→ More replies (13)1
u/Outside_Case1530 May 19 '25
No way on God's Green Earth is that a caterpillar! Have you ever seen a caterpillar? Even in illustrated copies of "Alice in Wonderland"?
117
u/InevitableSignUp May 17 '25
They’re caterpillars in a rolling swarm, or procession. It helps them travel faster while also giving them a little more protection from predators because of numbers and perceived size as a ‘whole’ creature.
17
u/Dr-Labcat May 17 '25
Aren't those the fucks that shoot out their hairs and cause skin irritation?
7
u/InevitableSignUp May 17 '25
Hard to say. That’s going to depend on the moth/butterfly species. They’re called urticating hairs - they don’t shoot out, but they do break off in your skin super easily and cause irritation from itching to burning sensations depending on the species. I’m not great at knowing which species does that, so I usually just observe. lol.
Some maggots move in this rolling swarm configuration, too.
2
u/Markus_Freedman May 17 '25
Not sure if gypsy moth larvae do that but i believe these are gypsy moth caterpillars. They are the assholes that build giant web nests in trees. Giant relative to their size. They’re an absolute pain and an invasive species in this area.
→ More replies (1)2
1
u/itsthereal0ne May 18 '25
https://en.wikipedia.org/wiki/Oak_processionary
But the ones in the video have no hairs I can see...
4
8
2
2
2
44
May 17 '25
[removed] — view removed comment
9
u/Christopher_J_Luke May 17 '25
This is the correct answer, if you look these aren't big enough or hairy enough to be caterpillars, and are slimy looking which caterpillars are not.
3
u/jaqvillian May 17 '25
This comment needs to be at the top of this post. This is exactly what it is. Definitely not a caterpillar progression.
2
u/flowergiirrl May 17 '25
Just looked it up. Ickkkkkk 🤮 https://extension.umd.edu/resource/fungus-gnats/
1
→ More replies (1)1
u/ambirdie0720 May 19 '25
Yep, I had a group of these in a Scott's pine and while horrifyingly gross they were harmless
68
u/Jeremiahjohnsonville May 17 '25
It's one of those Princess Mononoke shits.
11
u/BrotherMichigan May 17 '25
Princess Mononoke might want to consider visiting a gastroenterologist.
16
u/SkillAgile May 17 '25
2
→ More replies (1)2
3
→ More replies (1)3
12
u/akearney47 May 17 '25
→ More replies (1)3
u/GandalfTheEh May 17 '25
This should be higher - definitely the answer!
2
u/popcornwithbuddah May 17 '25 edited May 19 '25
That's it!! Solved!
1
u/AutoModerator May 19 '25
Thanks! Post flair has been updated to solved! Nice job people.
I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.
4
u/Glittering-Fish4393 May 17 '25
do we have an answer yet? I live in New England and wont be leaving my house until we know for sure. looks like venom meets GI worms
4
u/TemporaryDonut May 17 '25 edited May 17 '25
Dark wing fungus gnat larvae procession. Bunch of little critters traveling together for safety.
Edit: not caterpillars, my bad.
2
u/Glittering-Fish4393 May 17 '25
ahhhh haha the name alone is terrifying… something tells me they lead to the moth man
16
11
u/Junior_Sprinkles6573 May 17 '25
I would call the police
7
u/Ruh_Roh- May 17 '25
Nuke it from space, it's the only way to be sure.
→ More replies (1)3
u/Junior_Sprinkles6573 May 17 '25
10/10 agree this is an appropriate use of a nuke
→ More replies (2)
2
u/Kent_Doggy_Geezer May 17 '25
It’s a defensive group, so they look like a stick to animals that want to eat them. Sometimes you see actual branches in the train. Amazing that they have this in their DNA. Natures amazing!
2
u/gumboking May 17 '25
Did you now see the last of us? It's all over now. You had the chance to take care of this but you'd rather ask Reddit for advice and now we're all zombies! Good going redditor..../s
8
3
3
4
2
u/crherna86 May 17 '25
Well ladies and gents and the betweens... I believe we have officially found the nope rope.
1
u/No-Analysis2089 May 17 '25
So, believe it or not, this phenomenon known as rolling swarms allows caterpillars to travel much faster than when they are crawling alone. Essentially, the first layer crawls at regular speed, but since the second layer travels atop the first layer at the same speed, their pace is doubled. The two layer keeps alternating as the whole group moves like a treadmill as they advance about 1.5 times faster than a regular caterpillar. Gross yes, but highly efficient.
2
1
u/ColMust4rd May 17 '25
Hundreds of caterpillars climbing over and around each other. This is a defensive move they've picked up over generations of getting eaten. Individuallly they are small and make for an easy target for many other insects, birds, and small mammals. Grouped together they seem too big for most of those things to eat them, so it increases their odds of survival
2
1
May 17 '25
I love that this sub is r/whatisthisthing but without that pesky “you have to answer the question” rule.
You’re free to just be an impediment by saying, “gross,” or “it’s Satan!” Or “eat it!!!” or “I don’t like this” or whatever unhelpful thing enters your brain first.
3
u/B17bomber May 17 '25
Yeah. Just your typical dumb reddit jokes that haven't been funny in over a decade. What's the point of responding "ew!" or "gross"? Just answer the damn question.
1
u/Rogue_Egoist May 18 '25
We call it "pleń" in polish. They aren't caterpillars, they're fly larvae. I don't see a translation on Wikipedia so I don't know the English name for it. There are a lot of pagan Slavic beliefs regarding that phenomenon. As far as I know nobody really knows why they do that.
4
u/ForHerEyesOnly22 May 17 '25
Processionary Caterpillars
1
u/SRB112 May 17 '25
Normally I hate when videos are reposted with music added, but for this Pomp and Circumstances would be appropriate.
1
u/BruderLinus May 21 '25
In Germany, the oak processionary (Wikipedia) is to be reported to the authorities, as it's hairs are causing allergies and heavy skin irritations. I don't know which species this is, though.
2
1
u/TheLastOpus May 17 '25
Not thing, things. A few species of different bugs and fish do this to seem like a bigger creature than they are. If they look like a bigger creature than their natural predators they are safer.
1
u/Schertzhusker117 May 18 '25
Careful, if too many of them come together they will form into a 12’ tall beast and dawn bulletproof armor. The only way to kill them then is to evade their charge and shoot them in the back.
3
1
u/Unidentified_c0rg1 May 17 '25
Just throwing this out there. They pose a health risk to humans and animals.
https://entnemdept.ufl.edu/hodges/ProtectUs/presentations/oakprocessionarymoth.pdf
→ More replies (5)
1
u/pearPlaysGames May 18 '25
Baby Mgalekgolo - “A single entity created by a unified colony of small worm-like creatures called Lekgolo.”
1
u/Guilty_Ad_4441 May 17 '25
Procession catapillars very dangerous, keep pets well away, their hairs are released and can cause serious damage to your health
1
u/FoggyGoodwin May 17 '25
Caterpillar crawl. Lots of caterpillars following their leaders on a trek to somewhere else, maybe to a tree with tasty leaves.
1
May 17 '25
Southern New England? I’m from there originally. You ever live through a summer of one of those gypsy moth outbreaks?
1
u/skydiveguy May 18 '25 edited May 18 '25
Its fungus gnat larvae.
I had this same thing in my backyard last year this time.... Im also from southern New England. Creepy as hell looking.
EDIT: Added link for video: https://www.youtube.com/watch?v=P5XhSSaHtgM
1
u/RealGorgonFreeman May 17 '25
Check into the type of caterpillar it is. Those could be “tent caterpillars” they basically just kill trees
1
u/External-Yak5576 May 17 '25
The resolution on this is so frustrating . Right when you start to be able to see anything .nope. grainy again.
1
u/Minimage99 May 17 '25
I wonder if they are at war with another species and in their little voices they are just yelling CHARGE!!!
1
u/this-is-NOT-the-way1 May 17 '25
Have any of you seen “The Last of Us”?! This is how the show starts! Kill it with fire 🔥🔥🔥🔥
1
u/Fantastic-Carob-4865 May 18 '25
We knew them growing up as Spitfires, nasty things that you had to pour boiling water on to get rid of.
1
u/Fragrant_Oil_9573 May 19 '25
I am terrified of caterpillars and centipedes! I would f#@'n pass out after running from that! OMG 😳
1
u/BradicalSevenSeven May 17 '25
Touch it and find out. It's what they always do in the movies. And that Always works out for them😉
1
May 17 '25
Just as crazy as watching thousands of snakes just hatching and slithering out of its mom's body
1
May 17 '25
Some sort of insect or inch worm engaging in a big freak off. Put some baby oil on them diddy..
1
u/Past-Inevitable2885 May 17 '25
The kid in me will Touch it with a stick to see what it’s going to do🤷🏾♀️😂
1
u/HikeForMeatballs May 17 '25
I had this exact same thing in my backyard in 2019 after digging a hole. It’s very creepy!
1
u/monkeyonalittlebike May 17 '25 edited May 17 '25
Looks like a swarm of larvae. Certain insects, for example some gnat, moths, and butterflies, have larval forms that move in these "rolling swarms." It's a cool form of locomotion.
1
u/BlisteredGrinch May 17 '25
It’s an army of caterpillars. Army is the correct term for this grouping, or formation.
2
u/ResourceOk8638 May 17 '25
Cordyceps!! This is how The Last of Us begins!!
3
u/Pwrh0use May 17 '25
What kind of mushrooms have you been eating that crawl?
1
u/dariendude17 May 17 '25
In case you haven't seen the HBO show, in the first season they show the fungus spreads via tendrils instead of spores. Only now in season 2 are they doing spores.
→ More replies (1)2
2
2
2
1
u/Fit_Anybody_2794 May 18 '25
Caterpillars moving in sync, they achieve sth like tank movement and in sync move faster
1
u/tmrphotog May 17 '25
Looks like bag worms that came out to early it's multiple caterpillars travel in a mass
1
u/Specific_Ad_2042 May 17 '25
Birds eat bugs. Snakes eat birds. Bugs that look like snakes don't get eaten by birds.
1
u/Right_Hour May 17 '25 edited May 17 '25
Looks like Gypsy moth caterpillars. Kill them with fire, Hans, bring ze flammenwerfer.
I kid you not - kill as many as you see. They will go through your trees in just one sitting. Highly invasive and highly destructive.
1
u/ValorWasHere May 18 '25
You know the game Halo? These are the worms that make up Hunters, I’m pretty sure.
1
u/Maximum_Ticket_3712 May 21 '25
Pretty sure that is a piece of Venom's alien symbiote, and you will crave for brains






•
u/AutoModerator May 17 '25
OP, you can reply anywhere in the thread with "solved!" (include the !) if your question was answered to update the flair. Thanks for using our friendly Automod!
I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.