Barnacles Have the Biggest Male Reproductive Organs in the Ocean | Alien Ocean

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Video Sources:
Barnacle feeding and reproduction: • Barnacle feeding and r...
2016-12-17 : Diving GCS - Barnacles Feeding: • 2016-12-17 : Diving GC...
Coral Spawning: • Coral Spawning Other
Sources:
Chan, B. K. K., et. al. (2021). The evolutionary diversity of barnacles, with an updated classification of fossil and living forms.: academic.oup.com/zoolinnean/a...
Buckeridge, J. S., Chan, B., & Lin, J. P. (2019). Paleontological Studies of Whale Barnacles in Taiwan Reveal New Cetacean Migration Routes in the Western Pacific Since the Miocene.: www.ncbi.nlm.nih.gov/pmc/arti...
J. Matthew Hoch, Daniel T. Schneck, Christopher J. Neufeld. (2016). Ecology and Evolution of Phenotypic Plasticity in the Penis and Cirri of Barnacles: www.ncbi.nlm.nih.gov/pmc/arti...
W.A. Newman, D.P. Abbott (1980). Cirripedia: the barnacles: decapoda.nhm.org/pdfs/31753/3...
DOYLE, P., MATHER, A. E., BENNETT, M. R., & BUSSELL, M. A. (1996). Miocene barnacle assemblages from southern Spain and their palaeoenvironmental significance.: onlinelibrary.wiley.com/doi/1...
Glenner, H., Høeg, J., O'Brien, J. et al. (2000). Invasive vermigon stage in the parasitic barnacles Loxothylacus texanus and L. panopaei (Sacculinidae): closing of the rhizocephalan life-cycle.: link.springer.com/article/10....
What Are Barnacles? oceanservice.noaa.gov/facts/b...
Kamino, K. (2016). Barnacle Underwater Attachment.: link.springer.com/chapter/10....
Benny K K Chan, Niklas Dreyer, Andy S Gale, Henrik Glenner, Christine Ewers-Saucedo, Marcos Pérez-Losada, Gregory A Kolbasov, Keith A Crandall, Jens T Høeg. (2021). The evolutionary diversity of barnacles, with an updated classification of fossil and living forms.: academic.oup.com/icb/article/...
D Fertl, WA Newman. (2018). Barnacles.: www.sciencedirect.com/science...
David Veale, Sarah Miles, Sally Bramley, Gordon Muir, John Hodsoll,. (2014). Am I normal? A systematic review and construction of nomograms for flaccid and erect penis length and circumference in up to 15 521 men: bjui-journals.onlinelibrary.w...
Our World in Data, Human Height: ourworldindata.org/human-height
Long, John A. (2012). The Dawn of the Deed: The Prehistoric Origins of Sex: books.google.com/books?id=TXs...
Animal Diversity Web, Balaenoptera musculus blue whale: animaldiversity.org/accounts/...
Darwin, C. (1854). A Monograph on the Sub-class Cirripedia: The Balanidæ (or sessile cirrepedes) the Verrucidæ, etc., etc., etc: play.google.com/store/books/d...
Barazandeh Marjan, Davis Corey S., Neufeld Christopher J., Coltman David W. and Palmer A. Richard. (2013). Something Darwin didn't know about barnacles: spermcast mating in a common stalked species.: royalsocietypublishing.org/do...
Ann I. Larsson, Lena M. Granhag, Per R. Jonsson. (2016). Instantaneous Flow Structures and Opportunities for Larval Settlement: Barnacle Larvae Swim to Settle.: journals.plos.org/plosone/art...
Neufeld Christopher J and Palmer A. Richard. (2008). Precisely proportioned: intertidal barnacles alter penis form to suit coastal wave action.: royalsocietypublishing.org/do...

[@ellens3447]

134 psi is about 4 times as much pressure as is in your car tyre so yeh that’s pretty strong for a little guy???

[@OctopusLady]

Sweet, sweet context! Thank you!

[@illusionist1872]

10 and a half atmospheres. Sticky boy

[@XTSonic]

@@OctopusLady More simply put, it's as if you'd glue a stick with a surface of 1 inch square and hang from it. It would stick to the ceiling with the average woman hanging from it. Its about 30x weaker than Gorilla glue.

[@gurusmurf5921]

According to the interwebnets wood glue and super glue range between 3,600 - 4,000 psi for context.

[@bold810]

Psi: Penelope Scratches Incessantcecily. #its twue

[@magpieMOB]

I wonder if Darwin hated barnacles *because* of his years of study or if he hated them already and wanted to *know his enemy*

[@alanparker3130]

I'm pretty sure (gut feeling) that he just got sick of them. He was an obsessive and a workaholic. Dug up his garden to find out how many earthworms there were. Joined a pigeon-breeding society to check out how directed adaption worked. And so on and so forth.

[@magpieMOB]

@@alanparker3130 I agree, I only meant to be glib - I can imagine how that kind of single-minded fixation on inquiry could make life difficult!

[@jeshdreep9431]

I think it's because he couldn't classify barnacles very well on his theory, like, how tf could he know barnacles are related to crustaceans without the genetic code thing being discovered yet?

[@wheressteve]

Yes.

[@rafaelcruzs2]

@@jeshdreep9431 this

[@tomhomunculus]

Darwin's barnacle era was HILARIOUS. He got frustrated and grew to hate them. Basically "REVEAL YOUR SECRETS, YOU WELL ENDOWED ROCK BASTARD"

[@batmorrigan7616]

my partners at me

[@nschannel826]

That's such a mood tho lmao

[@josephlink4173]

Smol PtoB energy from Darwin

[@estherstreet4582]

Honestly, given that he *did* believe that evolution resulted in "better" animals he was probably big mad at the animals who evolved to be stuck to rocks waving their giant penises around blindly.

[@toadacrosstheroad]

And the fact that he had the dedication to keep going when he fucking hated them lmao, "I hate a barnacle like no man ever has"

[@bdbgh]

I've read about barnacles before, I still can't wrap my head around the fact that they are related to crabs, and how some of them do body horror levels of parasitism to crabs.

[@FuzzyBunnyofInle]

Oh yeah, it's next level parasitism. The barnacle doesn't just drain the crab, it turns themselves into a sort of mosiac/hybrid, like mistletoe in a tree. And then it gets the crab to mother it's barnacle eggs.

[@alveolate]

cordyceps shmordyceps, amiright?

[@a1marine105]

​@@FuzzyBunnyofInle they also change the gender of male crabs to make them female to which the female gets fertilized with the barnacle eggs

[@andrewyang3917]

​@@FuzzyBunnyofInleeven better, these crab parasite barnacles have their own parasite barnacles! Liriopsis Pygmaea aka the awww scrunkly

[@Dr.IanPlect]

ALL organisms are related.

[@efrainoctavio3506]

Charlie hated the barnacles because he couldn't figure out what they were despite spending years studying them

[@dinoflagella4185]

Yes, I believe it was because no one knew about the larval stages of barnacles.

[@seanphelps4057]

Born too late to discover barnacles, born too early to figure out they're crustaceans, born at the right time to write pages on pages about how much you hate them.

[@livinginsidegemses]

Please have the sense to recheck facts before spewing misinformation everywhere. Darwin did figure out barnacles were crustaceans (althought, yes, it did take him 8 years) And also the fact that they had a free larval state was already proposed (John Thompson), Darwin just proved his theory which of course takes a lot more time than proposing/discovering an idea.

[@Emelineeeeeee]

I can never unknow this barnacle fact. You know the one. I already knew a little bit about barnacles and how weird they are because of RealScience’s video about them. In that video she talks about how there was a spicy debate about how to classify barnacles because nobody could figure out wtf they were. That’s why Darwin spent 8 years straight studying barnacles to figure it out, and it almost broke his spirit 😂

[@mattmorehouse9685]

Yeah, Darwin had a rough time of it. Apparently he wanted to build up his scientific cred before publishing his book on natural selection.

[@karmatraining]

Was so tough to do that in the time before we understood how DNA worked

[@eeveeofalltrades4780]

​@@karmatrainingand we still don't know entirely how it works, we just have the means to study it

[@erictaylor5462]

You can't blame barnacles for being clingy. They are just a little shellfish.

[@personaslates]

Silly billy. They are crustaceans not shellfish.

[@Doc_Fun]

​@@personaslatesHave I got news for you

[@aaamogusthespiderever2566]

@@personaslatesuh oh here comes the very overdue wind storm

[@captainstroon1555]

As someone who might or might not have been mentioned in this video might or might not have said: "Natural selection is not the survival of the fittest, it's the survival of the fit enough"

[@mattmorehouse9685]

Yeah, evolution is like a lazy college student. Instead of going for the absolute best, it merely results in something good enough. That and it doesn't know the future and so sometimes it leaves organisms with some bad things. Like the human windpipe to esophagus valve that makes us vulnerable to choking.

[@cardescomedioses3674]

Yeah, a concept of evolution i read was evolution's dead ends, and it talks about how some evolutionary paths stumble with evolving certain traits to their phisical limitations and can't exactly redo a lot of the evolved traits since the group can't choose "hey, let's lose this trait, it's a dead end" so it is kinda stuck with it and needs to find an alternative solution, A little example is human eyesight, it is dog shit, it basically has the machinery inverse and re processed to barely work, why don't we evolve eyes like octopus? Since they are perfectly optimized? Well we would need millions of years of selectively unbreeding our eyes and then evolve to have them again like octopuses have, wich is, as you can imagine, inprobable and a death sentence to our species being blind millions of years until we evolve them again, same happens to the barnacles, since they had a crustacean base, they can't simply change their reproductive system to an efficient one, unlike spunges that evolved to reproduce like that since the beggining

[@seanphelps4057]

​@@cardescomedioses3674Same thing with hummingbirds. It's all cool to flap your wings so fast you can hover, until you have to eat every 30 minutes. Or Pandas, processing like 10% of what they eat into ATP.

[@erebusthedragon8017]

If you think regular Barnacles are weird, go look at Dendrogaster barnacles. It’s absolutely wild and I adore them

[@douggaudiosi14]

What the hell am I looking at? It looks like coral but it's a crustaceans?

[@AAAAAAAAAHHHHHHHHHHHHHHHHHH]

damn why do they look tasty..

[@GandalfTheTsaagan]

Aren't these the ones that parasitize sea stars? Or am I thinking of another parasitic crustacean?

[@thekittenwolf]

Gaster?

[@lightingthelatenight9942]

​@@thekittenwolf I hardly know 'er 😅

[@KidTheFail]

1. This is the best channel to randomly pop up in my suggestions for years, and I will now never leave. I have found my forever home, and you will have to pry me off. 2. Barnacles are so fucking cool, I got super into them when I was really small, and have a whole ass collection of old barnacle homes. Mostly from boats, but also just... Rocks ya know?

[@ikepigott]

Great. Now I’m gonna have to go back and rewatch all the SpongeBobs to look for hidden jokes…

[@tCoL_corp]

Anything?

[@gingermcgingin4106]

Broadcast spawning has one big issue: High offspring morality, since any of the eggs, sperm, & larva can be eaten by predators. The way they do it, barnacles only have to worry about the larva dying.

[@ReasonMakes]

The offspring are so incredibly moral, ethical, virtuous, and selfless that they offer themselves to predators as a sacrifice to keep the ecosystem healthy. :P

[@DrachenGothik666]

​@@ReasonMakes *snort-cackle* It's unintentionally funny when missing letters alter how a sentence reads. It's why I rarely trust spell-check. They won't catch errors like that. Too often, the spell-check red-lines a word, it's either 'cuz it's being a dumb American program not recognizing my British-Canadian spellings (which are still correct), or it's an unfamiliar word... & still correct.

[@dinoflagella4185]

It’s such a shame that the ones with the highest morals get eaten. Could you imagine how much more ethical our oceans would be?

[@amethyst..2]

@@DrachenGothik666”snort-cackle” bro what

[@clayxros576]

I can relate to Darwin's obsession and hatred for barnacles. As someone making a trading card game, due to having played a ton of them amd seeing the same problems, I can confirm Often times you study the thing you hate the most. Often it still helps your other stuff tho

[@karmatraining]

It makes sense for barnacles to reproduce like this because they are typically located in small clusters - broadcasting their eggs etc. would probably be highly ineffective, especially if their host was moving rapidly through the water.

[@xenobeatsxeno8719]

I agree with your statement, but I would like to put out my own theory on why barnacles have such a long penis Perhaps they evolved in the tide pools which would provide safety from predators, however they would face a problem relating to reproduction. How would they prevent their offsprings from being slowly pushed away from the coast or worse to dry land? This problem could’ve been the reason for barnacles not broadcast spawning.

[@Alte.Kameraden]

Darwin was obsessed with Barnacles, doesn't mean he loved Barnacles. In fact the oddity that Barnacles are drove him almost mad trying to figure them out. Hence why he hated them so much. It drove him mad trying to unlock what Barnacles even were.

[@ldawg360l]

If memory serves, Darwin was the one to first realize barnacles were crustaceans where before they had been grouped as mollusks. This was a huge deal in classifying them since reclassifying an organism at the group, or genus level was one thing, but at the phylum level was much more extraordinary. Yeah, it drove him to hate the little guys with every fiber of his being as they were so frustrating to study at the time. However, this study of these little guys helped refine and shape his insights into natural selection. To think the study of a small sedentary filter feeder helped form one the most revolutionary theories in scientific history is quite humbling.

[@huntercool2232]

The fact that Charles Darwin wrote over 600 pages solely based on the barnacles’ penis is just amazing 💀💀

[@Sans_the_skeleton_real]

This brings up a whole different type of hentie and rule 34.

[@420Alrighty69]

Wait until you find out about Sigmund Frued and eel’s.

[@Titancameraman64]

​@@420Alrighty69or Sigmund Frued and his relationship with his mom.

[@kaveman800]

idk if this has been already said, but something I really like about biology is how we as humans learn from mother nature to further our own knowledge and science. For example, a new adhesive was developed that mimics the sticky substance barnacles use to cling to rocks may offer a better way to treat traumatic injuries and that's pretty neat.

[@sharondao7417]

Loved this! What happens if the barnacle gets knocked off of its forever home?

[@OctopusLady]

Ooh, good question! I'm pretty sure that barnacles can't reattach themselves to anything if they get knocked off, so I imagine that they just tossed around the ocean for the rest of their life. And I also imagine that they probably don't survive too well once they get detached from their forever home. If they end up in mud or sand or something that doesn't allow them to extend their feeding appendages, then they'll probably starve to death :/

[@serasniketa9128]

‘forever home’ 😂 I really enjoyed this comment. 10/10

[@astick5249]

I think theres even a few free floating barnacles out there that simply live like that (just looked it up to make sure and theres at least one called the buoy barnacle)

[@dawnchesbro4189]

Directional Locomotion in a Turtle Barnacle, Chelonibia testudinaria, on Green Turtles, Chelonia mydas. 2008 study showing this species of barnacle can relocate and recement itself

[@astick5249]

@@dawnchesbro4189 This has got to be like the 1246839675825th time an animal does a mind blowing thing that makes me rethink how things work. I absolutely love it

[@salt-emoji]

Darwin's hatred and disdain for barnacles cracks me up. No one talks about Darwin and barnacles because he actually hated them. Despised them.

[@AynneMorison]

considering the barnacles' habit of attaching to mobile landing zones on the regular - one may have to think that broadcast spawning would be less effective. Sending a cloud of genetic material into the water in hopes of fertilization while moving at several knots on either a whale, sea turtle surfing the EAC, or boat hull might not get the best result.

[@petersmythe6462]

"This prevalent idea about evolution which is that evolution is this process which results in a "perfect" animal." I think what it really proves is that barnacles are evolution's idea of true perfection.

[@bryanmann1017]

Would eating barnacles raise my P to B ratio? Also do the effects stack?

[@OctopusLady]

I have been informed that I should respond to your comment by saying, "Did you beat the Man In The High Tower yet?"

[@bryanmann1017]

@@OctopusLady thanks so much this is a really helpful response. I will now go yell at the person who told you to say this.

[@ruffedgrouse2711]

This feels like reference to something.

[@julien827]

yes but unfortunately youd need to be capable of eating rocks

[@mcpicklebreath]

over this past couple of days I've been enjoying watching most of the videos on your channel, I love learning about new things! but I was dreading this one because I have trypophobia (which I would not recommend looking up, looking it up is a common cause for getting the fear and is how I got it, there are some pretty traumatizing images that can show up first thing when you look it up) which is the fear of holes, most of the time clumped holes in really well anything, for me specifically I'd describe it as "a fear of multiple holes in a casing that something that can come out of " and barnacles (honeycomb and lotus seedpods as other examples) have always been a huge trigger of the fear for me, But your other videos have been so fun and informative I decided to give this one a go anyways! I still got quite itchy and I couldn't look at the screen for too long (but I did catch a lot of the visual jokes, I love them thank you for including them!) despite my fear I think all creatures deserve respect and I'm glad to know more about how barnacles actually work now! thank you for making these awesome videos I'm looking forward to learning about more of the wonderful alien-like creatures we've got around us :)

[@johntodd6413]

Your fear is a infohazard. Knowing of it literally causes it to create a sense of curiosity that causes the fear

[@mcpicklebreath]

@@johntodd6413 I know, it's part of what makes the fear hard to deal with, if I talk about it I can end up giving it to someone else, but if I don't I have to hold it all to myself, it can be frustrating.

[@johntodd6413]

@@mcpicklebreath Personally the thought of making a artistic piece using the method seems to put me at ease. I feel like it's the viewpoint of seeing each hole as individually created rather than seeing the whole as a indefinable mass "helps". Idk, either way I don't like the look of them 😆

[@NedreddDwr]

This was hilarious, please dont stop making these wacky yet informative videos

[@bakudeavor]

barnacle boy…

[@alexanderx33]

Are you feeling it now Mr. Krabs?

[@miss_ayla]

Keep up the good work, Octopus Lady, I now know an uncomfortable amount about barnacle dongs because of you.

[@hogey989]

Truly the gift that keeps on giving

[@NXTangl]

The other thing that the parasitic castrator barnicles do is that they need a female crab to take care of them as if they were an egg sac, so they use hormones to create one. For reasons which need not be explained, there is a small but persistent group of people that finds that awesome.

[@woooooooooooooooooooooooo]

being trans but terrifying

[@NXTangl]

@@woooooooooooooooooooooooo permanently pregnant crab trans girls basically.

[@skelet8337]

Why does a species of barnacles has brainwashing powers and the ability to genetically modificate crabs nature pls stop.

[@user-qq1xj5zk9n]

@@NXTangl That's just a absolutely horrifying image to have, A permanently gravid trans woman with barnacles where there should be itty bitty

[@KozelPraiseGOELRO]

That is why they call me Barnacle. No, not _that_ think, but because I don't move and when I find myself in a hostile enviroment, I seal myself.

[@nfwrambo]

Does it count as being parasitic if it’s sort of by accident? There’s this one guy that had a barnacle growing inside his hand that he had to get surgically removed

[@ZebraLuv]

Well no. A barnacle has more of a "house" it sticks to. Where as a parasite needs a "host" providing something for it like food or reproduction. A barnacle accidentally in a hand isn't gaining anything so it's not a parasite. A hookworm in a hand is eating the human so that is a parasite.

[@nfwrambo]

@@ZebraLuv that’s a fair point, still sucks for the guy though, glad he got it out

[@xenostim]

yeah that's the first thing I thought of when I saw this video lol. can't forget that shit. that must have been hellish

[@woooooooooooooooooooooooo]

oof that's terrifying actually

[@3takoyakis]

I think it's more like lichen or moss They grew everywhere that is damp. Is it a parasitic? No, thats just how they live. They didn't absorb anything from their area

[@Booty_Crocker]

I hope your channel prospers and explodes with popularity. I’m happy you popped up as a suggestion!

[@rambysophistry1220]

Honestly, I never thought I would hear a song that is near and dear to my heart mentioned in a youtube video, and thus, subscribe.

[@markusgorelli5278]

Your editing skills are top class. And your "illustrations" are hilarious. Never stop!

[@JosephParker_Nottheboxer]

Now that I have discovered you and your joyful voice and views... imma watch EVERYTHING.

[@spiderplant]

You missed a funny opportunity: When you said "the average human penis is about 13cm" you should have followed it up with a quick "put away your rulers, guys"

[@ffiordhn]

Octopus Lady, there is a parasitic barnacle that infects vertabrates! They're called Anelasma and are pretty creepy.

[@sensualchocolate4928]

Dear Octopus Lady, Please never think a Bloodhound Gang "Bad Touch" reference makes for a bad joke, I laughed immensely, lol. Your delivery and timing were perfect and it made me laugh, so.......success I say.

[@Aemirys]

Im so excited to have just discovered your channel! I love this kinda kf fascinating content combined with your personality and humour!

[@arthurvalencia3982]

I LOVED THIS VIDEO~ not so much the organ talk, but the HAPPY TUDE AND THE ANIMAL FACTS WAS AWEESOME~

[@TyrannosaurusRex..]

Did NOT think barnacles had this much to them. Awesome!

[@frvnces]

so i JUST found your account and have been binging your content for the last like 20 hours (thank you, you are incredible, keep sharing this stuff with us, we love it, i promise). as i watch, i keep thinking about this book i read like two years ago called Why Fish Don’t Exist by Lulu Miller and all it taught me about taxonomy specifically around the creatures of the water. if you don’t already know about it, i wonder if you’d like it! it’s not /just/ about taxonomy though and it does deal with some heavy stuff (both historically and within the author’s life). it’s very very very cool tho!

[@hamzaalhassani4154]

the Bloodhound Gang reference is top notch XD earned a subscribe.

[@Kerosiin]

“…charles what are you doing with the barnacle penises now?” “I uhhh- it’s for my next theorem! Yes, I’m uh.. studying crustaceans and how everything evolves into a crab!” “Fine… just don’t write another 600 page essay on them” “sure…” *to the barnacles* “it’s 100% going to be about barnacle penises”

[@cognisant307]

7:17 Every man paused the video to calculate whether he's above or below average.

[@samfish2550]

Is it weird that the thing that suprised me the most was the fact that barnicals don't broadcast spawn..... Like I thought I already spoiled myself on the weirdest fact in the mantis shrimp vid I saw from you before this but I still got surprised. God the ocean is strange and I love it.

[@huntercool2232]

6:51 why… why does someone have that on their wall?!

[@Fifasher2K]

Because they can.

[@Jaybiiird]

just found this channel today and I have to say your content is PHENOMENAL!!! Keep up the great work! I've already watched all of the newer vids and am making my way through the channel!!

[@steelehatch4141]

I friggen loved this lol. Well done, you got my sub

[@hossameldinhosny9408]

I love the way you talk about your topics

[@moorflower4118]

Fascinating!!! Love this series

[@isaacs1052]

Great video, educational and entertaining as usual, thank you. There's one joke in here which is going to make me chuckle for a long time.

[@alexv3357]

7:30 Actually, what I was thinking wasn't "this is a load of barnacles," but rather something more like "this is a barnacle load"

[@xenostim]

I was hoping you would mention the guy who did actually get parasitized (ok probably not technically) when he got scraped/cut by barnacles and they ended up grafting themselves to his bones inside his hand... f**kin hellish. Yeah, I saw it on tv lol but it's true! on the parasite show, Monsters Inside Me.

[@skyfeelan]

5:26 already guessed it by how they look in their swimming form

[@RuinedTemple]

Omg, this cracked me up! And I just watched your vid on the Bloop mystery being solved, which was SO admirable! Once upon a time, I had actually been subscribed to the individual with the 24 min vid that you mention in that episode but had to unsubscribe due to the overwhelming vibes of dishonesty, & it's reassuring to find out that it was a good choice that made sense! It's so great to FINALLY find a channel creator who respects others & believes in crediting artists/creators when one uses their work (and even asking their permission to use it!), citing the sources where one finds the info that they use, quoting instead of plagiarizing, writing original scripts for one's vids, being as courteous as one can be, being sure that one does their best to not misinform & spread incorrect info., AND who isn't opposed to doing what it takes to offer factual info., even if that means taking the time to sift through BUTTLOADS of scientific articles &/or doing hours of tedious reading/notetaking/research. You've got my sub, Octopus Lady. 🐙

[@athena1491]

honestly, their little front plates are pretty reminiscent of crab mouth face bits,

[@bornon4134]

if you were curious: barnacles dont usually broadcast spawn bc theyre most often located in pretty rough waters along a shoreline or on animals, so it reduces their overall reproductive success compared to other animals like bivalves or corals.

[@Steampuke]

5:26 I GUESSED RIGHT, HA I reasoned that the immature barnacle seemed to have an endoskeleton and looked a lot like a sand hopper, which are crustacians, so they might be in that subphylum (didn't know that word before. Thanks for that :D). Flawed reasoning, I know, but sometimes it pays off 😂

[@user-ze7sw7il9r]

Ikr it was the first thing that came to mind

[@ensarodabas1993]

"what are you doing step barnackle?" "Engaging the enemy"

[@SJ-co6nk]

When crabs get crabs its serious business.

[@galev3955]

When I saw that drawing of the cyprid, my first thought was "oh lawd he coming" XD

[@bioman1hazard607]

You just became my favorite marine youtuber, thank you

[@jovidalmeida2801]

I love your videos I'm commenting on all of your videos now:)

[@lostbutfreesoul]

Evolution is more 'Meh, good enough' then a perfect mechanism.

[@Coastal_Cruzer]

That's exactly what evolution is

[@julien827]

its exactly what makes it perfect, life is only that resillent because of its variety of different answers

[@longlivelemon]

Hey! Octopus lady! I actually REALLY enjoy your videos. And I’m wondering.. since your the octopus lady you should do a video on OCTOPIE or whatever the name is lol :))

[@xenobeatsxeno8719]

I believe that barnacles had evolved such a long male structure is because they originally evolved in tidal zones, which broadcast spawning isn’t as effective in the tide pools.

[@BBWahoo]

This is how I'm introduced to your channel, alright then.

[@existereOracle]

As a sailor in a slow moving ship I can comfirm this is true

[@angelemmanuelperezmuniz1474]

That Discovery Channel reference made you earn a new subscriber by the way.

[@SagunaBaug85]

Amazing presentation ❤️❤️❤️

[@dennisfox8673]

I like the cut of your jib! Good info and a fun presentation. 🙂👍

[@claudiasmith4502]

I love your voice but somehow sound like you're on the verge of tears lol

[@wickedwhispers595]

I’ve always imagined battling crustaceans and they call is BAR-Knuckle boxing

[@SnarkNSass]

So, does whale 🐋 skin NOT slough off like ours? Seems if it did, the barnacles would come off every so often. 🐙💕

[@ReasonMakes]

Whales do shed their skin in patches, but the barnacles stay on. Only the outermost, dead skin layer comes off, while barnacles remain attached to the living skin. Whales get barnacles off by rubbing up against rocks and being cleaned by other animals.

[@8kayydub8]

They do but barnacles pull the whales skin into their shell and penitrate their glue really deep. So deep they cause scars when they come off. So they aren't effectied by skin shedding.

[@RandomStuff3915]

I hate how I already knew what you were talking about before even watching the video T-T

[@tiggerbiggo]

So I did a bit of approximate math rounding that figure up to 10x10^5, and it ends up working out around 100 newtons of force (equivalent to holding up a 10KG weight) required per square centimetre of barnacle glue. I have absolutely no idea if that is actually accurate, but having once tried to peel off a barnacle and being utterly unsuccessful, it feels around the right ballpark for how strong it is.

[@Coastal_Cruzer]

It's about 130 pounds per square inch. I'm not sure on the exact conversion but 10kg/cm^2 sounds about right. (Googled it and it is, 130 psi is about 9kg/cm^2)

[@ichaukan]

Barnacles faced their greatest existential threat with the invention of the crowbar.

[@calilycan3213]

Barnacles look so sick oml

[@Renpet516]

I just found your channel and I think I love you

[@miezepups15]

I read most of the first volume of Darwin's monograph on Cirripedia and somehow even though he's just describing their anatomy, his slowly building annoyance, desparation, contempt is palpable :D

[@magikarpthefish3656]

I just saw this video and this now gives me a new view on the barnacle scene from flushed away 😂

[@NotKonan019]

So parasitic barnacles are like, driving crab as mechas?

[@VeteranVandal]

Basically.

[@zzampelli4931]

I wish everyone could communicate info in this manner. School would have been so much better for me lol.

[@avoidant560]

Cyprid sounds like a name for ice-type pokemon

[@louisrobitaille5810]

3:50 You'l be surprised to learn that it's not the only parasitic species that "zombifies" its host. A couple others do that. I know there's a worm that does that to snails (to be eaten by birds), another does that to praying mantises iirc, another to rats (to be eaten by cats), etc.

[@joshuanicolai4776]

You are so silly and its why i love your videos other well i also like learning all kinds of stuff about marine animals

[@jennawebb4225]

Barnacles scare the life out of me. When I was on holiday, my parents and I went to a beach, and when it was time to leave, the stairs are COVERED from top to bottom, I was terrified and my dad had to take my arm and tug me to get out of the beach, I could literally hear the crunch and I went upstairs as fast as I could. And the fact the barnacles are actual living creatures, I got goosebumps. Now I wont look at barnacle the same again.

[@anthonytonythegeek5561]

10:33, probably one of my favorite jokes here lol

[@aalhard]

OMG this was hilariously informative Including diltdotdc !! Keep that courage

[@Cdre_Satori]

Now I just imagine barnacle-like aliens. the parasitic kind, the non-parasitic would just stick to their planet and be fine.

[@kisha1664]

Which is just so crazy to me because THIS, as we established in my last video, is not related to THIS, despite the fact that THIS looks much more similar to THIS than THIS. Like if I didn’t know and you asked me, which of these are related to THIS, obviously, I would pick THIS, because THIS doesn’t look like THIS. I honestly thought until my last semester of college that THIS was related to THIS, and not THIS. Like THESE two are related to each other, and THIS isn’t? Evolution! What are you doing, man?

[@marcfruchtman9473]

Oh so cool. Based on your information about the strength of the cement, then an average large barnacle of about 0.5 square inches would take 67.09 pounds of force to pull it off! That's pretty insane, and give the odd shape, they are probably really hard to remove. Cool video!

[@kenziemay1943]

Not me thinking in my brain “yeah they are crabs” as a joke but MY JOKE WAS RIGHT.

[@yami_the_witch]

When you were talking about where barnacles belonged I went like, "wait crustaceans isn't an option? guess that can't be it, their shells remind me of crustaceans..." to "I knew it! They are crustaceans!"

[@petersmythe6462]

10^5 N/m^2 is about one atmosphere. So they glue them down with 9 atmospheres of tensile strength.

[@brakistroier]

Now I'm just imagining a barnacle realizing its load into a male barnacle by accident and the other barnacle being like "Ew, what the hell, man?!"

[@DeuxisWasTaken]

My by far favourite explanation of broadcast spawning is a quote from Ze Frank's video on Bobbit Worms and other Polychaete: "it's sort of like masturbating in the tub except everyone's in the tub".

[@cyanspartan1757]

I'm surprised no one has made a horror movie based on parasitic barnacles. It's always "zombie virus this" and "pseudosymbiotic fungus that".

[@seantaggart7382]

3:18 ITS THE GENDER BEND BARNACLE!

[@KurtCollier]

134psi- imagine a square that is an inch wide by an inch tall. that square is made of the cement. someone stuck a handle to one side of the square and your 134 pound child/friend/animal to the other side of that square. now your child/friend/animal that happens to weigh 134 pounds can be lifted by that handle- though not to fast because 135 pounds will overpower the cement. that is pretty strong for an adhesive, and total over kill for how much a barnacle weighs