The Beautiful, Brutal Tentacles of Hydra

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3 жыл бұрын

This video was supported by KiwiCo. Go to kiwico.com/journey50 and use the code “journey50” or click the link in the description for 50% off your first month of ANY crate!
Follow Journey to the Microcosmos:
Twitter: / journeytomicro
Facebook: / journeytomicro
Support the Microcosmos:
/ journeytomicro
Credits:
Host: Deboki Chakravarti
Executive Producer: Hank Green
Writer: Deboki Chakravarti
Producer/Editor: Matthew Gaydos
Music: Andrew Huang
Footage: James Weiss
More from Jam’s Germs:
Instagram: / jam_and_germs
KZfaq: / @jamsgerms
Hosted by Hank Green:
Twitter: / hankgreen
KZfaq: / vlogbrothers
Music by Andrew Huang:
/ andrewhuang
Journey to the Microcosmos is a Complexly production.
Find out more at www.complexly.com
Stock video from:
www.videoblocks.com
SOURCES:
repository.naturalis.nl/docum...
www.jstor.org/stable/24989057...
embryo.asu.edu/pages/abraham-...
www.jstor.org/stable/10.1086/...
pubmed.ncbi.nlm.nih.gov/19306...
pubmed.ncbi.nlm.nih.gov/22689...

Пікірлер: 433

@AzrgExplorers 2 жыл бұрын

Someone cut off the first video about hydra, so two videos grew back in its place!

@ducksonplays4190 2 жыл бұрын

XD, Nice one.

@ducksonplays4190 2 жыл бұрын

Hail Hydra!

@OlOleander 2 жыл бұрын

Last time I was this early, we were still calling them animalcules

@wzae___ 2 жыл бұрын

Lmao

@jetjazz05 2 жыл бұрын

Last time I was this early phlogiston powered my lighting system.

@rot_studios 2 жыл бұрын

Those shots are so _detailed_, it's like I'm actually physically there, floating above the sample. It's awesome!

@alexv3357 2 жыл бұрын

If you want italics to work with punctuation, you have to add the punctuation inside the underscores, like _this,_ not _this_.

@GalileoAV 2 жыл бұрын

I just got a 4k monitor last week and man I couldn't agree more. This whole channel is gorgeous

@Rhythm911 2 жыл бұрын

The Micro' in HD and bigger than ever, but so transparent we can see right through them !!?!?

@johnjordan3552 2 жыл бұрын

yeah, this channel has the best microscope content I've seen KZfaq

@Rhythm911 2 жыл бұрын

@@johnjordan3552 I didn't know there were any others :)

@bennyfactor 2 жыл бұрын

The Kerona and the Hydra is like a tiny version of the Clownfish and the Sea Anemone. A microcosm, if you will...

@madamsloth 2 жыл бұрын

I thought the same. Can’t wait till we know the answer

@patldennis 2 жыл бұрын

Hydra, anemones, coral and jellies belong to the same phylum.

@johnanders8760 2 жыл бұрын

Only difference is that clown fish are known to be immune to those toxins.

@patldennis 2 жыл бұрын

@@johnanders8760 looks like the Kerina are as well. Perhaps they are not being "stung".. don't know didn't like the narrator

@markchapman6800 2 жыл бұрын

@@patldennis She said that they aren't.

@randipramadya 2 жыл бұрын

*Hydra exist, devouring everything on it's path Kerona pediculus : YAY A PLAYGROUND!!

@Fr0stbite1801 2 жыл бұрын

Those Kerona things are so adorable, my goodness.

@johnjordan3552 2 жыл бұрын

and they are probably on your face

@dermongooseplays5500 2 жыл бұрын

I made a balloon of this thing for an art class, was pretty fun.

@microborealis1064 2 жыл бұрын

Fantastic job, Deboki! Also to James- our boy is so excited about your 100x objective. He was practically drooling along side me watching those star-studded details!

@JamsGerms 2 жыл бұрын

Awwwwwww!

@obieobrien5883 2 жыл бұрын

These videos get more detailed and fascinating!

@curioustill 2 жыл бұрын

I love the repeated "We don't know". This show does an EXCELLENT job of demonstrating the limits of our collective knowledge, but without dumbing things down or venturing into misleading clickbaity terrain. Amazing!

@kyokoyumi 2 жыл бұрын

"Not like the beer or the virus" Even though corona is latin for crown and was adopted into the rest of the latin-based romance languages with the same meaning....

@henrykrider179 2 жыл бұрын

Absolutely insane visuals in this one. This channel has always been visually great but this is on another level of beauty and detail. Just gobsmacked lol

@skussy69 2 жыл бұрын

Imagine the beauty and awe you would witness if you watched these vids while tripping nuts

@Nurpus 2 жыл бұрын

I don't mind people other than Hank voicing the videos... but you gotta read the script like you would a bedtime story to a child whose sibling is already asleep in the bunk-bed overhead. Slow down, lean back, chill out - those micro-creatures aren't going anywhere.

@rexredmonwalkingintheword9892 Жыл бұрын

Literally my exact thought

@jimurrata6785 2 жыл бұрын

I'm happy you're back, Denoki! Thanks for all of your writing, and your recent foray into hosting. Youre getting more comfortable with the narration. 👍

@kk4pqr 2 жыл бұрын

Thank you for the video. The upgrade you guys did is the best thing that has happened to KZfaq in a long while.

@archionblu 2 жыл бұрын

love when Deboki guides us through the microcosmos! Of course I love hank, I've been a nerdfighter since that was a thing, but I love hearing her passion and she makes everything seem so interesting!

@jean-mauricenestler3761 2 жыл бұрын

Back in elementary school we had to hold a presentation on our favorite pet and I held one on hydras. Lol

@rebeccaerb9935 2 жыл бұрын

Lol

@TheSLOShadow 2 жыл бұрын

HAIL HYDRA!!! HYDRA DOMINATUS!

@OSRS_KQs 2 жыл бұрын

@Journey to the Microcosmos Hey, did you guys ever end up getting samples deep down from a drilling company? The reason I ask is I actually know a person that tests those samples from all depths for a Texas drilling company. During the process, he actually throws out the excess from the sample that isn't needed. If you still want specimens, I can ask him. He would also be able to label the specimens with what types of dirt/minerals are included, as that's what he does for his job.

@starlessstephtx 2 жыл бұрын

I would be really interested in this

@OSRS_KQs 2 жыл бұрын

@@starlessstephtx I remember watching an episode on this channel where Hank said they were trying to get in touch with some drilling companies for deep down samples. The person I know actually labels samples with the depth they were collected and the mineral contents. It could be very interesting, indeed.

@barbedwire83 2 жыл бұрын

Geology and the Oil industry is such an awesome thing to learn about simply because of what can come from it! I wish I had thought of this!

@jtktomb8598 2 жыл бұрын

They would only contain bacteria invisible to a microscope IMO

@vitamink1028 2 жыл бұрын

7:44 "they'll kill the hydra and steal those nematocysts for themselves"...wow that's brutal.

@Giancarlo_SO 2 жыл бұрын

Another fantastic video, thank you all who worked on it

@randompheidoleminor3011 2 жыл бұрын

Kerona pediculus crawling on hydra fingers: "Yubi yubi!"

@fikrihaikal837 2 жыл бұрын

ah i see, you''re a man of culture as well

@NewMessage 2 жыл бұрын

_Steve Rogers has left the chat_

@grandexandi 2 жыл бұрын

Amazing! Thank you! Not only great footage, but great production overall, I especially love the soundtrack.

@PPYTAO 2 жыл бұрын

Beautiful footage as always, I feel transported to another scale of being.

@syber-space 2 жыл бұрын

Can we get a photo or poster of the Galaxy hydra at 4:54? It looks like a little galaxy in there!

@Totalinternalreflection 2 жыл бұрын

Hi new narrator, good job, very easy on the ear and clearly spoken thanks :)

@mimiteas 2 жыл бұрын

If I may... She is actually the writer for this channel and occasionally the narrator. Check out other two videos where she did the narration: "How diatoms build their beautiful shells" and "The diversity of shapes in microcosmos". 😊

@Totalinternalreflection 2 жыл бұрын

@@mimiteas oh okay thanks for the info.

@jubb1984 2 жыл бұрын

Wow...the crisp and clear, beautiful images...im continuously amazed by how good this channel is =D

@horsetuna 2 жыл бұрын

I wonder what Tremblay would have thought of carnivorous plants that can move...

@annapeters2255 2 жыл бұрын

I really hate to say this but I can only ever enjoy these videos with Hanks voice....

@Astroboy9586 2 жыл бұрын

Mindblown on how detailed these video is!

@bengoodchild883 2 жыл бұрын

Amazing! Thank you :) Looking forward to finding some Hydra with my own scope eventually.

@tomhorseman9832 2 жыл бұрын

Absolutely excellent!! I LOVEEE this channel so much!!

@paulpritchard1980 2 жыл бұрын

I don't know exactly how Kerona managed to slip and slide all over the hydras tentacles. But it does make me think of something else with a similar behaviour. Clown fish living amongst sea anemone. Clown fish rub themselves up against the tentacles of the anemones to steal their mucus. The mucus stops the anemone from stinging itself. And voilà instant bodyguard. I noticed how Kerona slips and slides up and down those tentacles of the hydra. Perhaps it's doing something similar. Another great video by journey to the microcosm. Thank you.

@mattclark7752 2 жыл бұрын

You know what would be a cool a video on the pond tank and it's inhabitants

@TheBogstaverne 2 жыл бұрын

I am so glad for the new upgrades! This is so beautiful and fascinating!

@CarminesRCTipsandTricks 2 жыл бұрын

Deboki... You have such a provocative voice! I mean that in the best way. You make me want to listen - and learn! Please do more of these.

@danieldevito6380 2 жыл бұрын

One of the coolest things I EVER saw was a video of a hydra (Hail Hydra) that got grounded up into must, literally... Then, over the course of a few days, the cells of hydra reorganized themselves back into a living, functioning, full hydra. You think of life as being so fragile, however, this animal was ground down into paste, but was able to put itself back together, literally, and go on living a normal life, as if nothing happened. Truly incredible. No wonder scientists are so obsessed with stem-cells.

@Mrcryptidsarereal 2 жыл бұрын

Hail Hydra!

@harikrishnas7960 2 жыл бұрын

3:59 What? Trembley saw a hydra capture a millipede? !!!! The insect, millipede ? !!

@finaltheorygames1781 2 жыл бұрын

These videos are amazing! It's like going to another planet and looking at alien life.

@Larsanator 2 жыл бұрын

Ty for the vid!

@dbell92 2 жыл бұрын

I can't believe how incredibly beautiful this microscopic world is! Thank you so much for bringing it to life for the public!

@garlanddavidson6845 2 жыл бұрын

I Love the new Improve detail to the Image! from the info, I’ve gather your colleagues so happen to stumble upon this more detailed technique using oil? (Fascinating)

@exploremicroscopy 2 жыл бұрын

Stunning photomicrography!

@nadaehab8063 2 жыл бұрын

My fav channel ❤️

@sputnikjones2477 Жыл бұрын

What an awesome channel.i loved biology in school.i love it more watching it in such amazing details,in the comfort of my living room.ty so much...

@051adam Жыл бұрын

Interesting... reminds me a lot of animal relationships in marine/reef life. Amazing video!

@omegalightning5715 2 жыл бұрын

Beautifully done

@oneshotme 2 жыл бұрын

Enjoyed your video and I gave it a Thumbs Up

@parulkakkar9768 2 жыл бұрын

Wonderful work

@ryogamestation 2 жыл бұрын

3:12 Mac wants the Flamethrower.

@cosmoplakat9549 Жыл бұрын

I had an infestation of hydra in an aquarium once. Getting overzealous with feeding live baby brine shrimp to fish is a top cause. But hydra are visible to the naked eye and positively fascinating! With a small (4x) magnifying glass, you can examine them more closely. They do no real harm to aquarium fish. Some say neocaridina shrimp are at risk, but my population of shrimp thrived.

@viliussmproductions 2 жыл бұрын

Hey, now you have a perfect name for the eventual Vlogbrothers black metal album.

@WanderingShinobi 2 жыл бұрын

I have the upmost respect for the work you guys are doing although i have to say hearing you say the names of these microorganisms so casually it reminds me of an episode of rick and morty :D

@KPdewstar 2 жыл бұрын

This channel is incredible.

@Dradeeus 2 жыл бұрын

4:10 I can't get over this footage. It's so detailed and alien.

@ptarmigan1356 2 жыл бұрын

Wow that was amazing

@2l84t 2 жыл бұрын

The Kerona appear to be grooming the Hydra in a symbiotic relation .

@Allan_aka_RocKITEman 2 жыл бұрын

I remember learning about these little guys in high school.

@melodynice7938 2 жыл бұрын

Complexly amazing

@madisont3123 2 жыл бұрын

this channel is amazing

@issouamine217 2 жыл бұрын

Hi...please make a video about extrusomes or Nematocytes of jellyfish.... Those are some amazingly complex organelles.

@draygoes 2 жыл бұрын

Hey! Can you guys do an episode on White Blood Cells? I would LOVE to see some good footage of that. Thanks!!

@odiumimbues 2 жыл бұрын

everything is so bubbly.

@PaulSteMarie 2 жыл бұрын

Great photography here! Who's the new narrator? The credits still show Hank.

@RJFerret 2 жыл бұрын

The writer, Deboki Chakravarti, who has done one or two previously as well, lightening Hank's load, but seems to be doing fewer than he does.

@terrypitt-brooke8367 2 жыл бұрын

Loved it, of course. But could you put the time compression/dilation scale in as well as the magnification? Or are all of these videos at real time?

@massimookissed1023 2 жыл бұрын

I think they're real-speed unless otherwise stated, which does happen sometimes.

@JamsGerms 2 жыл бұрын

All the videos are real-time unless we state otherwise on the screen. :) -James

@terrypitt-brooke8367 2 жыл бұрын

@@JamsGerms got it! thanks!

@Tomer-Barak 2 жыл бұрын

We will appreciate an update regarding the microscope

@lknanml 2 жыл бұрын

Did they get a new scope? Maybe a new camera.. I can't quite put my finger on it but something is different....... Another amazing VID! Thanks.

@Maxiloup 2 жыл бұрын

this is so beautiful

@rosesacks7430 2 жыл бұрын

first time I've heard this narrator, nicely done 👍

@thangchinsiamguite4725 2 жыл бұрын

Themselves can regenerate there entire body

@ottoia9126 2 жыл бұрын

I asked this before and I'll ask it again: if you mix cells of two hydras, will they reform into two hydras or will they combine into one stronger, double hydra?

@commontater6274 Жыл бұрын

I just got my Hydra T-shirt! Thankyou Microcosmos, and for those Shield fans, "Hail Hydra!" :)

@bloodandempire 2 жыл бұрын

So awesome 😍

@angeluslupus 2 жыл бұрын

Anyone else mentally repeating the narration in their head but with Hank's voice? No offence meant to the lovely voice of the new host... but, having been listening to Hank's soothing tones since the start, I kind miss how calming and comforting he is.

@207shark 2 жыл бұрын

Man i love seeing the monster plaguing my aquarium

@AWeebAteMyBaby 2 жыл бұрын

It looks like that bird-crocodile relationship were the croc allows a bird to eat bits of stuck food from its teeth

@unvergebeneid 2 жыл бұрын

I really enjoyed Finding Nemo, Microcosmos Edition!

@valentin_te 2 жыл бұрын

It would be nice if you could show the type of microscopy next to the magnification factor.

@sommelierofstench 2 жыл бұрын

the microscopic world is so wild holy shit. sometimes i’m overwhelmed that all this is happening all around us and we don’t even notice. crazy.

@blazertundra 2 жыл бұрын

I wonder if the Kerona ciliates have a similar relationship to the hydra as cleaner fish do with sharks. I imagine there could be irritating surface parasites even in the microcosmos.

@samiamrg7 2 жыл бұрын

There are also sea slugs that eat sea anenome tentacles and incorporate some of the un-activated nematocysts into their own body’s defences.

@genocanabicea5779 2 жыл бұрын

You didnt say anything about their ability to reform themselves after being blended like a sauce. Yes its Imortal.

@jonathananthonyhumphries2486 2 жыл бұрын

That's crazy that it was left out.

@lordarthur2165 2 жыл бұрын

They talked about it on a video about hydras two years ago :D

@T.J 2 жыл бұрын

Please please please do a video of what’s inside the CV shots so that people can see what it’s like inside of them even if there is nothing to see.

@anglojojo 2 жыл бұрын

are you mad? he would lose his channel if he spoke negatively about the human experimentation

@T.J 2 жыл бұрын

@@anglojojo well I guess you are correct. True. Maybe they could post that on a new channel.

@bcraiders11 2 жыл бұрын

Amazing

@1TakoyakiStore 2 жыл бұрын

What happens to the cell wall of diatoms when a nematocyst hits it?

@vylbird8014 2 жыл бұрын

The Kool-Aid mascot character comes to mind.

@nicholasmartinez5070 2 жыл бұрын

_very_ nice!

@rplanet_ua Жыл бұрын

I took fresh water from the lake and caught some kind of polyp. It doesn't look like a hydra at all. It looks like some kind of round bush, if you shake the water, it curls up into a ball. It preys on copepods. I've been trying all day to find what it is but I can't. On the Internet it is written only about the hydra. Can you suggest something?

@JamsGerms 2 жыл бұрын

Thanks Deboki for this awesome script and narration!

@luisaparodi8571 2 жыл бұрын

This new video on Hydras is so detailed! Congratulations James! And Deboki narrated it very well 😊

@okidokiboki 2 жыл бұрын

thanks for the amazing hydra footage (and for telling me more fun trembley facts!)

@malootua2739 2 жыл бұрын

I swear that hydra are the octopus of the microcosmos

@jek__ 2 жыл бұрын

Are those tentacles? They look like arms. I would draw parallels between nematocysts and suction cups to make the definitions consistent with other animals which have both tentacles and arms, and since there are cysts up and down the length of the tube, that seems like an arm quality

@kingocto 2 жыл бұрын

how does one cut a hydra though? Like the width of the sharpest of the blade would seem like a hammer to the hydra, right?

@JamsGerms 2 жыл бұрын

You can use the side of a coverslip to chop them off to pieces. -James

@kingocto 2 жыл бұрын

@@JamsGerms Ah the master of the microscope! Thank you 😊😊 And thank you @ValiGB for your help as well.

@zStickyTreeFrog 2 жыл бұрын

can we dna sequence a octopus and this animal to isolate the regenerative properties and learn more or it doesnt work like that...

@CMZneu 2 жыл бұрын

Locomotive nematocysts? how does that work, do they harpoon and pull themselves along or do they just stick to stuff?

@asdfjkli 2 жыл бұрын

The narration is really good in this video!

@Astor_V 2 жыл бұрын

While I still prefer Hank's narration (I mean, he's got so much experience that it's not surprising), Deboki is getting better and better! Keep up the good work! (Great video btw, as always)

@hisakini 2 жыл бұрын

By now I'm preferring Deboki's voice for these especially low-key vids.

@slimelich 2 жыл бұрын

these shots are amazing,, and Deboki's narration was excellent!

@smaug131 2 жыл бұрын

This made me wonder, how does the hydra stop its nematocysts from triggering when its own tentacles touch? Also, the Kerona remind me of small animals that live off cleaning bigger animals. Perhaps their presence is useful in such a way? Maybe having scraps floating around or stuck to the tentacles is disadvantageous to the Hydra in some way, it may be harmful when it detoriates, attracting bad bacteria or releasing harmful enzymes.