The 4 Creepiest Parasites on Earth (This Will Keep You Up at Night!)

[@SciShow]

Go to Brilliant.org/SciShow to try their Beautiful Geometry course. The first 200 subscribers get 20% off an annual Premium subscription.

[@hamsacc]

Henlo I watch yor vidos

[@ALPHAGOD911]

Makes sense its my first time seeing this although the other part after the first started making no sense to me.

[@maverick.gaurav]

Will brilliant sponsor a new music for your intro?😐 Please change it.

[@WadcaWymiaru]

*HEY!* The SCARIEST parasite even wasn't on the LIST!!! *IT IS CANCER* !!!

[@maverick.gaurav]

@@WadcaWymiaru You must be new here. Cancer isn't a parasite.

[@whimsy5623]

Horrifying *BUT WAIT, IT GETS WORSE*

[@michaelschiller8143]

Should I be worried about you watching me?

[@whimsy5623]

No

[@batman_2004]

Yo FBI, I need you at Gotham ASAP.

[@michaelschiller8143]

...

[@michaelschiller8143]

Hey batman

[@SBroproductions]

"Horrifying, but wait, it gets worse." - Parasites in a nutshell.

[@GaryDunion]

Also, the world in general.

[@yonatanalem9343]

Wait parasites are in nuts too? **drops bag of trailmix**

[@beowulf2772]

The barnacle part is like a gender swap alien thingy

[@Doomzdayisgone1969]

What kind of nuts

[@minhkhangtran6948]

@@beowulf2772 Or a gender-bend hentai plot. Especially the tentacle kind.

[@NatureWitch]

Poor crabs everything and everyone wants to eat them or use them.

[@cottoncandytits2205]

oh boo hoo lol

[@illeatyochildren6673]

...

[@meghanachauhan9380]

That sounded sexy

[@rainbowisticfarts]

poor 🦀 Bois, No wonder they dance in crab rave

[@namesarefortheweak9602]

Lmao k

[@thischannel4326]

I used to hate parasites, but then they grew on me.

[@rileyrosegale8362]

Now you just sound like a crab.

[@gotskill741]

Lmao I hate you 😂

[@KamenNepper]

underrated comment

[@luigikart222]

booooo!!!

[@JJJackson777]

I said the same thing about my tumor

[@HeavyMettaloid]

Now the "Oh, barnacles!" swear from Spongebob makes sense!

[@therunaway4731]

Warren Peace holy cow your right !!!

[@NexusVFD]

Mr Krabs had barnacles

[@TheCimbrianBull]

The creator of SpongeBob SquarePants was after all a marine biologist.

[@boohoowho1132]

Lolllll

[@andy56duky]

@@NexusVFD what a load of barnacles.

[@TheTexas1994]

“Are you sure you want to restart earth?”

[@aceykiwi5877]

"We should also remove these things called "humans" cause apparently they caused global warming"

[@bob-gn9xj]

@@sarahy.2442 huzzah, a man of culture

[@vladimirbartels1513]

Just Another Comment they caused one of the global warmings

[@alamrasyidi4097]

@@sarahy.2442 Oh wow. It's like it's r/unexpectedbillwurtz but for exurb1a. That's pretty neat! We could make a religion out of this!

[@AutumnForHire]

The Phantom 2018 okay pucci

[@Vannah272]

"It invades the eye stalks of snails, turning each eye into a pulsating brood sac that looks like a juicy caterpillar ready to be snapped up by the parasite's next host." My eardrums will never be clean again.

[@alansmithee419]

Why? Did the parasite get into them?

[@baconbro1753]

alan smithee yes And i wish that weren’t the case

[@tenoreyequetis]

I want to barf

[@seanwilson8168]

LOL

[@butterskywalker8785]

it was sexy

[@lonelycoffee8374]

I had no idea the corpse flower was a parasite. I never knew entirely what it was, but I thought it was just some weird plant

[@raven4k998]

well the more you know

[@osheridan]

Same-

[@richardthomas5362]

It is simply wrong. It uses flies, which are gross as well.

[@stanclark8824]

same

[@ethandaniel8123]

Imagine a parasite on a parachute 🪂

[@jonathanbecerra7073]

"1/3 to 1/2 of all life on Earth is parasitic" Thanos *snap*

[@blonk2658]

Rip

[@babypatrick755]

We need helpful bacteria

[@Thebombboom]

Last male and female white rhino: Yes! We can mate and make more! *Thanos snap *White rhinos extinct 20 years later

[@feesh3782]

I'll happily die to have them all destroyed

[@ultralanpasalan4712]

@@feesh3782 same

[@xVancha]

Hank: "The parasite even somehow forces the snails to be more active and stay out in the open where they're easier for predators to spot" Snail: THIS IS HELL. SOMETHING KILL ME. ANYTHING. PLEASE.

[@jessikapiche6097]

no i think it is 'mentally dead' by that time. it is no longer the snail, it is just a dead brain taken over by an alien mind... quite terrible in any case...

[@eisque]

They do that so birds can eat them and then the cycle restart again

[@smol1211]

@@jessikapiche6097 so basically in the most simplified form, a zombie, that doesn't exactly eat flesh

[@jessikapiche6097]

@@smol1211 ...that literally make them suicidal... yep!

[@camillemiller3063]

Me: *shoots snail 🔫*

[@bobhulbert4015]

I could have done without seeing the pulsating snail eye.

[@meghanachauhan9380]

I can never unsee that. Goodbye all the beauty in this world

[@NuckChorris12345]

It's honesty one of the most unsettling things I've ever seen in real life.

[@wingriddenangel8407]

@One Blue Boi In all seriousness could you stop ?

[@RyanxDunn]

Nah he didn't give me the four-legged frog so I took what I could get

[@bloodandempire]

Soooooooo grossssss

[@jimmutenken3989]

I always thought Rafflesia flowers had something interesting about them, but I never knew they’d have such a hardcore strategy for survival.

[@EricsTechTalk]

Oh God, this brought back a childhood memory. I caught a Croker once fishing with my dad on Marsh Island, Louisiana when I was a very young child, and it had a tongue biter in its mouth, and I was TERRIFIED and started freaking out

[@virtualpellot933]

😖😱 That really sounded nightmarish.

[@thalassaer4137]

Lmfao continue doe howd your dad react?

[@EricsTechTalk]

@@thalassaer4137 He just explained to me what it was

[@ryandysinger612]

Why didn't my group project team get featured

[@admiralthecat]

It was too gruesome for youtube.

[@madscientistshusta]

There is always that one person in the group team...

[@zetharic1610]

BECAUSE THERE IS A PARASITE IN YOUR TEAM

[@polpolturtle]

“If it doesn’t kill you It will mutate and try again” - Wise Person

[@anonymouscat3772]

“What doesnt kill you, makes you wish you were dead” -emo song

[@nightmarepolice7590]

Do not wound your enemy when you can crush him. - Tyrion Lannister

[@deucedeuce1572]

I always hope these animals (and even insects) don't suffer. I can't imagine how painful these things could be... or other forms of suffering, like not being able to breathe.

[@Shrew-22O1]

I feel like barnacle one is the cruelest...😭 so sad for the crabs. 🦀

[@meareyesso7116]

:(

[@llordmakisigsantiago7098]

There is a parasite that made Charles Darwin dout a loving god and its a wasp then lay egg inside a baby caterpilar then the larva eat the inside of the caterpilar and the worst of all the caterpilar have AIDS not joking

[@Hx_jamie]

RIP Mr Krabs

[@bobyscott1303]

We are parasites too but in a good form

[@inaaronshead7331]

@@bobyscott1303 I doubt we can call ourselves a good form of parasite. Lol

[@donfields1234]

I thought humans getting crabs was bad, but crabs getting barnacles is waaaay worse, AND the poor crab didnt even have unprotected sex or live dangerously....how unfair the world truly is.

[@Naharu.]

Crab was just living his/her life, walking around and *bam* now has to take care of a parasite forever. Poor thing.

[@predictivetextisforaunts]

You can get “crabs” from protected sex, too.

[@ladyfaeryj5108]

Lmao that was great

[@TomsBackyardWorkshop]

condoms dont protect you from crabs.

[@TreyGamr58]

Must be the worst to get crabs with barnacles

[@Oshaoxin]

Barnacle parasite sounds like something out of a Lovecraftian horror.

[@thelonelyboner1]

Darth Nox or sponge bob

[@flextape7239]

Hm... you actually riht

[@ML8443]

You mean Barnstable Parasite

[@LelandMaurello]

Those parasites in the snail's 'eyes' are def one of the most horrific creatures. I'm glad these small creatures cannot 'think' the way we do. Nature is so damn macabre sometimes!

[@rickystriglio]

You guys should've included Ophiocordyceps the zombie ant fungus......it is a terrifying as it sounds

[@gothxx]

Expected to see it too, but learned new nasty ones instead.

[@jrbird1983]

Ricky Striglio you'll do as I say. lol

[@Panther888]

Ricky Striglio as you just said it is a Fungus not a Parasite

[@jenson1569]

Why bother, they’re already hit the 10 minute mark

[@trazyntheinfinite8393]

@@littlepoodle7443 Yea that fungus species is the fungus the last of us is based on.

[@wolfonthezoon]

As a wise man has once said " Damn nature you scary"

[@qhviananan-laul5159]

Thank you Ollie Williams ! Now back to you Tom Tucker

[@mr.dominator5894]

Thats JJ for sure

[@mrlemon1669]

that thing come by my house i kill it

[@zoup2189]

furries are more scary

[@croquemaster314]

@@zoup2189 aren’t you a furry

[@mythology2467]

Now when Zoidberg says "I've got barnacles on my butt", I worry for him. I worry for him a lot.

[@kari7403]

That immediatly mkes me think of the original IT movie. "I worry about you Bevvy. I worry about you a lot."

[@Triairius]

Oh no. Poor Zoidberg!

[@anger_birb]

OH GOD

[@bo-boboski4118]

70th

[@cyirvine6300]

I had a lizard that had eyes that would bulge out and pulse like that. Now I freak out wondering if it was infected. Great video with content!

[@sorrynotsorry949]

Did you get it check my friend ?

[@SDStudiosAnimations]

fish: "You will never kill me!" Tongue biting isopods: "Now here is a little something we gamers call Camping."

[@mentallyretarded4131]

I cant ruin the 69 likes

[@victorlolxd7347]

@@mentallyretarded4131 woah 17 likes in 15 hours!

[@diegocastro8772]

Any one els feel that random itch? No...... just me ok

[@diegocastro8772]

One Blue Boi lol they are around the anus I felt it on my back 😂

[@kalistangina]

Omfg I got an itch right after I saw ur comment

[@noteblocker5857]

i dunno man, seems like a neurax worm to me

[@lisanever715]

I'm itchy because my skin is dry.... but I'm scared

[@beaq6755]

Been scratching my head for minutes😭😭

[@xHaRm51]

Welcome to the salty spatoon how tough are ya? I watched the "4 parasites too creepy to exist" video and only cried for 20 minutes

[@demonthepunmaster4503]

i didn't cry at all

[@theultimatebro9278]

@@demonthepunmaster4503 you don't have to lie, it's OK we've all cried

[@demonthepunmaster4503]

@@theultimatebro9278 No srly i didn't cry like,at all(i don't cry much)

[@jordanwright554]

@@demonthepunmaster4503 theyre joking mate. no one cried

[@demonthepunmaster4503]

@@jordanwright554 Oh,ok mate

[@EduardoSanchez-un2hh]

If scientists manage somehow to fuse a couple of these together in a lab, we would have a zombie apocalypse.

[@jameswatsonatheistgamer]

We already have that. It's called people who watch reality TV.

[@dragonslayermasterornstein83]

@@jameswatsonatheistgamer or political social media.

[@jonaut5705]

@@dragonslayermasterornstein83or andrew tate

[@milosstojanovic4623]

Well humanity is no short of ideas to destroy itself. Influenca, HIV, bird and pig influenca, CORONA, biological weapons, list is endless, bravo humanity 👌👌😔😔

[@TheKeybladeKeeper]

That's the premise of Last of Us right there

[@cbsboyer]

Parasites are endlessly fascinating, once you can get past the 'ick' factor.

[@naturegirl1999]

cbsboyer agreed. I find it cool that creatures can control other bodies. Also some, like the botfly, use other animals as vessels to get the eggs to their hosts.

[@chisasa9509]

That's why I use them in my Yugioh Deck. Lol they Bug my opponents.

[@AaronSoul725]

cbsboyer fascinating and disgusting very disturbing and should be wiped out but that just me

[@shilzat1883]

yeah,and what if theres life on other planets and they habe they own parasites,cant wait for some measles small pox sex infection

[@jaredloveless]

"Poor Unfortunate Crabs! So sad, so true!" Now you're going to be hearing that in your head all day.

[@fulgurdecaelo5422]

I WAS SEARCHING FOR THIS SO I DIDN'T POST IT

[@evthespineconfiscator8652]

69 likes Nice

[@Dreadjaws]

It's interesting to see how many of these awful, terrifying creatures inspired enemies in games like Resident Evil 4 and The Last of Us, but it's also kinda creepier to see how many inspired _Pokemon._ They were all like _"This is a whimsical, adorable alternate universe full of cute creatures to love and play with. Let's add some real-life existential horror in it!"_

[@wkoya4803]

Pokemon has tons of horror related things despite it being made for children.

[@YingofDarkness]

@@wkoya4803 Just read any of the descriptions for those funny Pokemon that usually get made fun of when they are revealed. Almost all ghost, almost all do effed up crap or have a sad backstory for their existence

[@thalassaer4137]

@@YingofDarkness jesus christ the sandcastle one

[@ethymith]

@@thalassaer4137 soulsand

[@blakksheep736]

@@wkoya4803 Plus Paras is literally a crab infected by a fungus. It's name is literally the first 5 letters of parasite.

[@X-SPONGED]

2:53 "Instead, they seem to have trouble breathing" Wait, So these bugs give fish eternal asthma ? Oof, that's rough, buddy. I feel ya...

[@starsaligned_]

Me: Has a fear of parasites Also me: *watches this video knowing I might panic imagining parasites in my body*

[@shade0636]

You have a tape worm living inside of you right now.

[@Karmeon1982]

@Owen Boyd it's terrifying

[@wideorange9594]

DO NOT LOOK UP TAPE WORM HEAD IN KZbin ITS A MISTAKE

[@wideorange9594]

@The Unnamed cousindeath Nah it’s just disgusting

[@wideorange9594]

@The Unnamed cousin ok I got you

[@rcookie5128]

Male crab noticing eggs growing on it: "Huh, am sterile and am pregnant, better take care of my children". :o

[@freddylisy10]

No he goes well I am a woman now time to protect baby

[@Pro-pk7ww]

ONO

[@movedaccountscyayalls7119]

@@freddylisy10 he's good daddy or mommy

[@panzerboidasixth6892]

Dat male crab just became a femboy crab

[@what2toinquarantine64]

@@panzerboidasixth6892 femboy crab

[@kevinsmak]

I think I have heard about the corpse flower before...oh yeah I heard it through the grape vine.

[@technolance2164]

There's also another parasite that attatches to a spider and hijacks its brain so it spins a web fit for a wasp nest while the parasites steals the nutrients from the spider and when it's done spinning the web the parasite kills it and releases wasps to continue the cycle Edit: its called the "ZATYPOTA PERCONTATORIA"

[@DrJ-hx7wv]

And evolution cannot explain any of them

[@QuesoCookies]

@@DrJ-hx7wv Of course it can. Parasites that happened to invade the nervous systems of certain organisms caused those organisms to behave in unusual ways. Whichever ways happened to be beneficial to the parasites naturally caused them to survive to reproduce and have young that invaded in similar ways. And what was random induced behavior gets less and less random with each generation of survivors until the induced behavior no longer appears random. Simple.

[@thecowilsoninc4175]

​@@DrJ-hx7wv Get off of the science KZbin channel if you don't believe in basic biology.

[@spicysalad3013]

@@DrJ-hx7wv yeah, that's why scientists keep studying it dummy

[@phoebealmaliki101]

"That may sound creepy enough for you but trust me," *grins* "It's so much worse than you're imagining!"

[@yoshiikis]

that sounded so psychopathic when he said it 💀

[@Vekron]

"vine boom"

[@blushydabest]

"The parasites keep the snail more active and out in the open for it to be easier for predators to spot" Well yeah, if I was a snail with parasites like those, I'd be pretty suicidal too.

[@drahprub7750]

I mean you wouldn't die, but you would have your eyes torn off But i suppose as a snail you're too dumb for that :p

[@abrahammesrajecorrea2349]

I don't think they have any will of their own anymore. I belive those parasites take over their brain and thus, their body. It's like having little people inside your brain, controlling you from now on without you being able to do something.

[@thalassaer4137]

@@abrahammesrajecorrea2349 yeah till the larvaes get eaten by a bird along with you eye sockets...which some or most..? Snail specie regenerate

[@stuthelotusguy]

I'm surprised you did not mention Cordyceps, the fungal infection that causes 'zombie ants'... Great collection otherwise, keep up the amazing channel!

[@raf74hawk12]

Probably just because that one is a bit more well known. Because that one is pretty awful, and bizarre.

[@Rose01bloom]

I actually think they covered those ants already?

[@SaruCharmed]

Another interesting thing is that there are actually parasitic species of ants that kidnap ants from other colonies and enslave them.

[@liamodahl1205]

Since 'The Last of Us,' that's been pretty mainstream. Probably want to shed light on lesser known parasites.

[@leothebugnerd]

this is very late but perhaps because it is not a true parasite but instead a parasitoid- a parasite that deliberately kills its host, while many true parasites try to keep their hosts alive.

[@EpicPython-qq6ys]

Parasites do actually give back to the host sometimes, like with some orchids that take nutrients from nearby fungi, then give them back later.

[@波紋小石]

That sounds neat. "Parasite" is a kind of symbiotic relationship. The other types are mutualist (help each other), and commensal (one benefits without hurting the other). Assuming the orchids hurt more than they help, maybe they're still parasites. But what you describe sounds a lot like mycorrhiza, which are usually described as trade relationships that many plants and fungi use, but may not be fair (likely varying with each sugar-for-nutrient trade).

[@Reth_Hard]

If Hank Green is our host, does it means we're his parasites? Hum...

[@TheDJGuVna]

Why??? Now I'm actually thinking about this

[@ashlysajeev2984]

Punssss

[@mattz083]

Yep.

[@addnamehere7940]

No that's Logan Paul

[@TheRogueWolf]

Humans: "Becoming a zombie must be the worst thing that could ever happen." Nature: "Here, have some new nightmares!"

[@moderizhaan9497]

nah seen alot of weird creatures like this in Dungeons and dragons and pathfinder role playing game bestiary

[@fuzionxm4514]

A wolf on the internet :|

[@kaylabrand7403]

There should be more movies based off of real parasites. Have you heard of horsehair worms?

[@WyattRodebaugh]

You should look into the kingdom of fungi. Some fungi are pretty wacky.

[@davedennison7386]

....pass me my phone....can an inanimate object be a parasite??

[@platinumflameplays9101]

"Even inspired a pokemon" Yugioh players: *cries in traptrix rafflesia*

[@MegaNinjaRyan]

YUGIOH players: Parasite Paranoid

[@jinghuin7515]

That’s cool! It even keeps the rafflesia name!

[@dabasil]

As a traptrix main, i can confirm

[@TopazToby]

HUH???

[@platinumflameplays9101]

@@dabasil giga chad

[@devonmmi]

rafflesia flowers are one of my favorite flowers, right up there with sunflowers and tiger lilies

[@ohnaww]

"Warning! This episode is gross!" Me: Pfft, I got this. 8:38 Me: I don't got this.

[@highjinx6519]

Really? That’s the part that grossed you out the worst?!?

[@alamrasyidi4097]

*P A T H E T I C*

[@alamrasyidi4097]

@@highjinx6519 The part where the barnacle's tentacle penetrate the crab's body, mind-controlling it and, if it's a male, feminizes it from the inside out? That's obviously the grossest part they're talking about...

[@highjinx6519]

Alam Rasyidi ahhh ty, thought they just meant it taking care of it like it’s own eggs, I mean yeah that’s creepy but... I’m still catching on to this timestamp thing lol.

[@occultninja4]

Allow me to gross you all out. Close your eyes and imagine. You're a guy wandering through the woods, hunting a fox to make a hat out of it's fur, but little did you know, a most insidious creature has latched onto your clothes and crawled into your pants. Much like a tick or a mosquito, the stealthy creature works it's way over your skin, maneuvering it's way towards it's desired target area. A most... Unsavory of target areas... You can use your imagination to inform you of where our opportunistic creature is heading. With the careful precision of a brain surgeon, it latches itself onto the base of his reproductive organ, delivering a painless bite he had no way of detecting, and initiating a horrifying process that will leave him forever changed. Days pass and our man has not experienced any side effects as of yet, aside from a strange... Euphoric feeling, and occasional mood swings. However, inside of his body, very disturbing things are happening. The insect that bit him is not interested in simply siphoning see blood and leaving. No, it is there for a much longer haul than that... Tendrils from inside of it's mouth penetrate into him, invading and infiltrating him, connecting it's nerves with his own, and delivering him with an inexplicable sexual euphoria that grows stronger as the days pass. The strange persistent and addicting good feeling he's doused in leaves him complacent, forcing his guard down. It works much like the irrisitible and numbeing power of opium, slowly but surely addicting him, coaxing him onto complacency, making Jim withdraw from his world, no longer caring about even his daily obligations and instead choosing to spend his time blissfully frolicking in the euphoric ecstacy of his own solitude. Thus, it's no surprise that, by the time he discovered the creature latched onto him, his capacity to care had been withered away. Deep down he knew it was abnormal and he should do something about it, but the crippling drugging the creature was giving him was keeping him from taking action. 'Ill handle it later', 'it can wait', 'jist a little longer', 'I'll handle it tomorrow...' Those were the thoughts that came over him, a constant neverendong cycle of procrastination that kept him powerless to do anything about the creature latched onto him, which allowed it to move along to it's next phase... Day by day, his testicles shriveled and dried, hardening and drying out, as if being sucked dry and devoured inside out. All sensation from them was all but gone. The only thing he felt from the area was that constant euphoric bliss that seemed to continuously radiate from it. There was not even any notice when the dried husk of his male reproductive factory broke off and fell away from him, leaving him permanently sterile, as the creature continued it's horrible sins against humanity's genetic lineage. Every night, he was plagued by strange.. Dreams.. nightmares, of a female demoness, pleasuring him, making love to him, seducing him, and sucking the very life out of him. A vampire, draining the life out of him slowly but surely. Each night she brought with her a new world of pleasure, and each morning, she took.woth her a bit of his soul, leaving him less and less and less human as the days progressed, and his situation got worse and worse... A week has gone by, and signs of he affliction are now visible... His muscles mass has began to decrease, perhaps a symptom of his infection, or perhaps something else. His more masculine features were replaced with more frail and... Weak ones. The trait left of his prominent male features was a growing protruding beer gut that's become more pronounced as of late, something he cherishes and takes much pride in, in a manner that seemed much too... Intimate than to be simply pride over a masculine attribute... However, nature is a horrible mistress, and what was happening to him was not simply a Misplaced obsession with his belly. No... The creature that had latched itself onto him was... Well... Impregnating him. Thousands, possibly hundreds of thousands of wriggling undulating worms resided within his belly, feasting on the partially digested food traveling through his tract, growing, maturing, and eventually, being 'born' onto this world through his feces, to start their heinous disgusting life cycle all over again. Our Hunter never quite recovered from his... Affliction. It was too much to hope for. Humans are cripplingly vulnerable to dopamine and chemicals that can replicate it's effects, something this hellish creature took full sadistic advantage of. There it remained until the day it's host died, it's tail burrowed inside the fleshy hole left from when his dried dead testicles fell away, injecting it's vile brood inside the orifice to impregnate it's new 'wife', flooding his mind with otherworldly ecstacy all the while to trap him in a hell too cruel for even those who commit the sin of lust... -I may have gotten a bit too into that. Bear with me I'm getting into writing horror and had to give it a try xD-

[@ezekielnutter1273]

There's a parasite where I live that's a type of anemone. It attaches to a host jellyfish and eats it's gonads, then separates to form a full anemone. Life is whack.

[@DatBoi-mo9vc]

"Before i live the rest of my life on the floor, theres one last thing on my bucket list: eatin some fuckin jellyfish nuts" - sea anemone

[@oleghrozman4172]

Hayao Miyazaki: Nature is beautiful, good and gorgeous! Nature can not be disgusting! Only humans are evil! Me: Suuuuuuureeee.. riiiiiiight

[@skramamme685]

Also, parasite documentaries frequently reduce hunger signals in humans :D

[@zyrdrake]

I love how everytime something is really terryfying, he gets overly excited :D

[@moralityisnotsubjective5]

I'm the same way.

[@jahnavee_palsodkar]

These parasites are so horrifyingly, gruesomely awesome. I mean, just look at those wonderful mechanisms they have evolved for themselves to live and reproduce! All this is SO FASCINATING!

[@masterfoggy88]

Yeah and that’s my proof god doesn’t exist in the biblical sense…

[@hasiko_xgj7791]

@@masterfoggy88 not related but ok

[@nooternootey9666]

Yea all so fascinating... Unless your the species that has to suffer them

[@allthingsnerd.4484]

“I admire its purity.” - Ash, Alien (1979)

[@mylesleggette7520]

@@hasiko_xgj7791 This is a science channel, people can't resist the impulse to fire shots at religion even when unprompted. Almost like they have some sort of brain parasite...

[@winterfrost_productions2573]

"To feed on the fish's nutritious FlUiDs" Ew.

[@seanwilson8168]

LOOOOL

[@Summer-rj9ms]

😂

[@psgamerOO]

What’s the. Problem here?

[@paulmahoney7619]

ALL OF OUR PRECIOUS BODILY FLUIDS

[@kurotsuchi6015]

@@psgamerOO eating your sweat 😅

[@vaulted4239]

I saw the isopods once while fishing with friends. When it came out of the gills I said “Ew wth is that!” And proceeded to smash it with my shoe repeatedly

[@user-xr5yq9pd9l]

"Anywhere between ⅓ and a ½ of all life on Earth is parasitic, although there's a lot we still don't understand." Say sike right now-

[@aperson8077]

Now I'm not too scared about our earth getting hit by a bigger meteor

[@rusticpath2244]

Wanna know a fun fact? Every single human being on earth has had a parasitic infection at least once in their life. Even you. The most interesting one for me comes from pigs. They lay their eggs in the skin of the host and when eaten it will then infect their next host and lay even more eggs in their new hosts skin. So if you're having pork, be sure to cook it thoroughly.

[@Mathew7245]

"Study shows that fishes that are infected tend to be unhealthy" Damn who would have known

[@bananabreadbreadofbananas]

candles

[@realjooj1296]

*_wDyM iT iS fLaT u IdIoT_* jk

[@Novarcharesk]

And if you REALLY think about it, we're actually not

[@elihutfles1146]

Humans need Earth, but Earth is not about Earth. It's about humans.

[@IvanTube0]

99% of deaths happen on earth and thats why we should destroy it

[@randomsheep3753]

@@Novarcharesk Honestly we could be. It's not currently a falsifiable hypothesis. Parasitism for all we know could be fundamental of all life in some shape or form

[@Balder-gb4eq]

The cordyceps fungus life cycle is also crazy interesting

[@Mei-uy9ve]

"A parasite is an organism that makes its living taking resources from another..." My first thought: my brothers.

[@YourLocalPlushAddict]

Same

[@wynkelly1389]

My first thought was TRUMP...

[@moralityisnotsubjective5]

@@wynkelly1389 Rent free.

[@DrJ-hx7wv]

​@@wynkelly1389 you don't understand the terms used here. Stop posting. There's one group in American life that does fit the bill, but your friends make it impossible to mention them, powerless as they are

[@QuesoCookies]

Landlords

[@Faux_Fox_]

Judge me if you want but parasites fascinate me Even ones that aren’t real I.e headcrabs and face huggers

[@voices4dayz469]

I'm judging you, now what?

[@shaun8269]

@@voices4dayz469 Now you wait.

[@Galvatron102]

I agree, parasites are kinda cool (As long as they don't infect you, you know)

[@YourLocalPlushAddict]

You really sound like a mad scientist

[@coltafanan]

But hank you're forgetting about the most creepy parasite: ThE eX-wIfE

[@rudy8409]

@Beemanq nahh the ex-wife fares much better in devorce and takes half the husbands stuff and takes the house that the husband worked for. truly parasitic creatures.

[@erinpitt580]

@Beemanq pathetic retort attempt alert

[@erinpitt580]

Work for what you get ? Naw.... Take someone else's hard work. Easier life.

[@oijosuke9879]

*THE CHEATING EX GIRLFRIEND*

[@puerkito9893]

TEXIE

[@jewelhaines8842]

The Barnacle parasite was fascinating!! Great video!!🥰

[@MehreenHassan225]

Yo corpse flower is anything but beautiful. Stop 😰

[@sabercat5490]

It is at least on the outside but not on the inside.

[@RambutanLaw]

This is how the parasites manipulate you.

[@nbalegend9124]

If it takes dna one day we could use it's power. Superpowers here we come lol

[@AsmodeusDHare]

It is visually appealing, nasally not so much

[@Notafoundationspy]

Bing Bong, the barnacles ate my Dong.

[@tomorrowisyesterday3215]

Nooo

[@ishowomni8899]

Lol

[@starriumm]

I read dog and I was like whATTT?

[@who_againn_]

We are twins now

[@seanwilson8168]

LOL

[@continuousvariable1220]

Frog : frowns 4 extra legs Me: spider frog, spider frog Does whatever a spider frog does Jump and leap Kick about Can't walk Oh well Look out it's a F* parisite

[@jacobb.9181]

Why’d you censor that now I ain’t got no clue what dat means

[@anandhua.b4589]

Give this man a grammy

[@Cavemankind_]

Mistletoe is supposed to act as an imposed aphrodisiac during the holidays. So metaphorically, it’s like a imposing imposition, a double parasite.

[@Wid3]

You forgot the mosquito. It has a parasite living on its head.

[@lukaskuipers7791]

?

[@elgrandosmokio7136]

?

[@mintybluej]

I think he’s talking about the disease, but I’m not sure.

[@rakhibandyopadhyay5385]

@Oana I think he is referring to disease causing protozoans- I kinda fogot thier name.... Edit: Plasmodium

[@uninformedluddite]

We have parasites that live their entire lives on our eyelashes.

[@Vladimir-et2kq]

I always wondered how parasites evolved along with dinosaurs and humans.

[@BearsThatCare]

Malaria, a protozoan parasite, is thought to have more of an effect on the human genome than any other. There are 5 species that live specifically in humans and mosquitos, but almost every primate has it's own species. Also some mice and other mammals. Considering malaria infecting mosquito bites are responsible for more human death than any animal, I'd say these protozoans are among our greatest competition.

[@melvinshine9841]

I believe there's also likely evidence for some theropod dinosaurs having been infected by a parasite very similar to one that infects modern birds of prey. I can't remember the name of it, but I do know it causes lesions in the mouth that can eat into the bones of the skull.

[@Slemoster]

@@BearsThatCare Correct. In fact, Malaria is responsible for 90% of all Human fatalities throughout history. It is Humanity's single biggest killer. Sleep well =)

[@abdullahalrasheed394]

@@Slemoster Hey there, you brought a very outrageous statistics, what is your source on that?

[@TheCimbrianBull]

@@Slemoster Citation needed!

[@zapdog_]

8:20 "brood chamber" would make a great name for a metal album

[@qhviananan-laul5159]

First album is Barnicle Babies

[@DarkD112]

As horrifying as this video was, and despite not being able to watch past three parasites, thank you. Seafood is getting rather expensive and this seems like a wonderful way to lose my apetite for fish for a good long time.

[@renapeppers20]

Waiting to see how many people type "my ex"

[@aughhhhhg]

Depression Cherry I just did

[@iloveyoushima]

My ex.

[@rytherykalan6867]

I typed in my sister

[@basicems24]

🖐

[@IceMetalPunk]

"This parasite tricks its host into believing a relationship is forming, but really, it's just using the host for sexual release. When the parasite is satisfied, or if the host begins to rebel, the parasite simply leaves." AKA My ex.

[@Ice_Karma]

I find it fascinating how, in... recent-ish times, we've gone from thinking that horizontal gene transfer only happened in archaea and bacteria, to discovering plants and even some animals that do it or have done it, too!

[@The_sinner_Jim_Whitney]

There's a particular wetland near my home in West Virginia in which I've found what I feel is an inordinate amount of frogs and salamanders with additional or malformed legs, I always assumed it was due to pollution due to quite a few industrial facilities (powerhouses, steel mills, chemical plants, and natural gas compressor and metering stations) and the coal mining runoff in years past. I'm sure that has some effect, but I'd be very interested to learn whether there's a lot of that family of worms in the water. Interestingly, it's a natural wetland, but only sorta. It's along the Ohio river, and if left to nature would probably be under the river's surface almost all year, but since we built many locks and dams along the river to make it year-round navigable the river channel has become narrower and deeper, exposing the wetland to year-round air. Side note, how the hell does a creepy parasite video from smart folks like the SciShow crew not mention the mind-control cordyceps fungi?! Good vid just the same, I'd never heard of the frog mutating worms or the crab manipulating barnacles.

[@BbTenn]

A parasite is a friend for life.

[@appleislander8536]

'big and beautiful' >is literally a giant flower designed to look like bad Salami and smell like rotten flesh

[@Pokeman_official1]

“Migi, handle the defence”

[@RRW359]

*Eyes glow* At least there aren't any parasites that control humans. Also, when did my house start getting an echo?

[@thirdkidney2223]

There is one virus or bacteria that can completely control even human making them behave like a beasts,but it's rare!

[@motioninmind6015]

Look into taxoplasma

[@darkconch5244]

There is a parasite that can make you like cats more

[@Pussmash]

@@darkconch5244 Toxoplasma Ghondi or Toxoplasmosis. Not sure if I spelled that right. Lol

[@xscaliersolid1194]

So which one are you - Ba'al, Imhotep, Apophis? Just as long as you're not Hathor.

[@alyssasowell774]

I saw number 2 on an episode of The Most Xtreme on animal planet way back in the day. For my elementary school state writing test, I decided I wanted to write about it. Only one big problem- I forgot what the darn thing was called. So I made up an entirely incorrect but believable enough name so I could finish it. All of my facts and information were spot on and accurate! If only I remembered the name. Still scored well on it. This was back in the day where computers and internet access were incredibly limited for me and the show was cancelled and stopped airing at some point so there was no hope of ever seeing it again. But in the episode it placed number 1 as the most extreme parasite I think? Sorry for the word vomit comment I just was really excited to have this fever dream of a parasite actually be real and learn its actual name isn't burroclaudia lmao

[@adrianjohnmanuel]

I used to be disgusted of parasites, but the more I study and watch their ways of living, they are now attached to me.

[@theR1ch]

Didn't know Rafflesia was a parasitic flower. Always wondered why it looked like it has a spiked pit in the center like a more medieval version of pitcher plants.

[@redozmasoma]

The No. 1 isopods are so polite "Oh, someone is already at the tongue, ok let me just chill on the gills" lol

[@guisomlo3086]

Pure existential horror!

[@arandompersonontheinternet9244]

Crab: No one can take control of me! Parasitic Barnacles: Allow us to introduce ourselves.

[@antonybarker2999]

Lol

[@bourne1012]

Not much creeps me out but ever since seeing those things that replace fish tongues on QI, even thinking about them sends shivers up my spine.

[@jrbird1983]

Superfunhappytime that's just the worms moving down to your legs.

[@bourne1012]

@@jrbird1983 I'd rather they were on my legs than my spine tbh.

[@CartePostale.]

Thank you, so much for the vlog. A vlog on "parasitic zombification" would really delight your subscribers, I'm sure :-). If you've covered this already, apologies, I've just come across your site.

[@adamqazsedc]

If you're uncomfortable with this, why watched the video in the first place? Oh, and they are NOT forcing their subscribers to watch these kind of videos, I'm sure :-)

[@Metro33fan]

My dad came home with some fish from fishing with his friends I looked and one of them had a parasite on it sucking it’s blood it was an isopod but it was scarily strong for its size and actually bit me and sucked my blood

[@FirstnameLastname-zk9wf]

Thanks for the great bedtime story, Scishow!

[@SAMURIADI]

is there something thats hunts 1,2 or 3? id like some justice

[@senorwoofwoof466]

hunting it would require putting it in your mouth, and i don't think you wanna do that

[@Brendski]

There’s no justice in nature

[@Sixsince-dd2eu]

There is a parasite that infects another parasite

[@YuBeace]

@@Sixsince-dd2eu A parasite with a parasitic infection.... oh how the tables have tabled!

[@thecontrarysnivy]

The moment you said "manipulating a host", all I thought was: Nihilego. Apparently, that's not the only Pokémon reference here (Vileplume). But still, Nihilego.

[@LazyBevees]

OML UR LIKE 30 SUBS AWAY FROM 7 MILL CONGRATS! I love making myself terrified of everything

[@overworlder]

‘Snapper-suffocating isopods’ is spot on

[@electronresonator8882]

fish & crabs: *exist* tongue-biting isopods & parasitic barnacles : "it's a free real estate"

[@TheCimbrianBull]

*Crab Rave intensifies* 🦀

[@Pit1993x]

1:00 The second the grossness warning came up, I made sure to set the video quality higher. XD

[@florado22]

That corpse flower thing kind of looks like a demogorgon head 😬😂 10:09

[@ICEBUNNo]

6:18 So that’s what Paras and Parasect were based on.

[@MissOnana]

Actually, not at all. Those pokemon are based on a type of mushroom called cordyceps. This is also what the Clicker zombies in The Last of Us are based off of. It's a type of mushrooms that basically turn ants and other insects into zombies. Really cool stuff, if you wanna look into it. But that's actually why when Paras evolves into Parasect, the eyes turn fully white; it's actually basically little more than a glorified husk controlled by mushrooms. One of the pokedex entries even blatantly states that Parasect is "mostly dead", and all of them state it's a bug and a mushroom, not a crab. But it IS totally a parasite controlling that line of pokemon, sadly.

[@endikaaspeurrutia1013]

@@MissOnana and the funny thing is that this is not one of the darkest Pokémon

[@seanwilson8168]

@@endikaaspeurrutia1013 I LOVE POKEMON.....THIS IS FACTS LOL

[@mrrottenmerican6769]

Then they should be all female

[@psgamerOO]

Mr Rottenmerican ?

[@twister5752]

SciShow a few years from now: *15 Reddit Stories that will Leave you Awake at Night*

[@vamul1]

5:41 I Miss Ten Seconds ago when I didn’t know this existed

[@tkoborny]

I never thought of SciShow as a political venue but, this episode does a very good job defining many modern politicians.

[@NavnikBHSilver]

I was kinda waiting for the ant mind-controlling fungus. Ophiocordyceps unilateralis.

[@TheCimbrianBull]

That one is fascinating.

[@commode7x]

That one just wasn't horrifying enough to make the list.

[@lactobacillusprobiotic7029]

commode7x But it was the inspiration for the video game Last of Us.

[@commode7x]

@@lactobacillusprobiotic7029 The crab parasite should have been the inspiration. It's truly horrifying

[@bugjams]

I think they made a video about that already. I’ll have to check though.

[@xenos_n.]

Well that was horrifying. Thanks, SciShow.

[@TheCimbrianBull]

Nightmare fuel! ⛽

[@brickmastere5535]

"But wait! It gets worse."