The Beautiful, Brutal Tentacles of Hydra

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  • เผยแพร่เมื่อ 4 ก.ค. 2021
  • 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
    TH-cam: / @jamsgerms
    Hosted by Hank Green:
    Twitter: / hankgreen
    TH-cam: / 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...
  • วิทยาศาสตร์และเทคโนโลยี

ความคิดเห็น • 433

  • @AzrgExplorers
    @AzrgExplorers 2 ปีที่แล้ว +250

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

  • @rot_studios
    @rot_studios 2 ปีที่แล้ว +367

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

    • @alexv3357
      @alexv3357 2 ปีที่แล้ว +8

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

    • @GalileoAV
      @GalileoAV 2 ปีที่แล้ว +5

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

    • @Rhythm911
      @Rhythm911 2 ปีที่แล้ว +1

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

    • @johnjordan3552
      @johnjordan3552 2 ปีที่แล้ว +2

      yeah, this channel has the best microscope content I've seen TH-cam

    • @Rhythm911
      @Rhythm911 2 ปีที่แล้ว

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

  • @OlOleander
    @OlOleander 2 ปีที่แล้ว +209

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

    • @wzae___
      @wzae___ 2 ปีที่แล้ว +4

      Lmao

    • @jetjazz05
      @jetjazz05 2 ปีที่แล้ว +16

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

  • @bennyfactor
    @bennyfactor 2 ปีที่แล้ว +188

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

    • @madamsloth
      @madamsloth 2 ปีที่แล้ว +6

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

    • @patldennis
      @patldennis 2 ปีที่แล้ว +3

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

    • @johnanders8760
      @johnanders8760 2 ปีที่แล้ว +5

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

    • @patldennis
      @patldennis 2 ปีที่แล้ว

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

    • @markchapman6800
      @markchapman6800 2 ปีที่แล้ว +4

      @@patldennis She said that they aren't.

  • @randipramadya
    @randipramadya 2 ปีที่แล้ว +25

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

  • @dermongooseplays5500
    @dermongooseplays5500 2 ปีที่แล้ว +57

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

  • @Fr0stbite1801
    @Fr0stbite1801 2 ปีที่แล้ว +38

    Those Kerona things are so adorable, my goodness.

    • @johnjordan3552
      @johnjordan3552 2 ปีที่แล้ว +2

      and they are probably on your face

  • @microborealis1064
    @microborealis1064 2 ปีที่แล้ว +31

    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
      @JamsGerms 2 ปีที่แล้ว +3

      Awwwwwww!

  • @curioustill
    @curioustill 2 ปีที่แล้ว +9

    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!

  • @obieobrien5883
    @obieobrien5883 2 ปีที่แล้ว +45

    These videos get more detailed and fascinating!

  • @kyokoyumi
    @kyokoyumi 2 ปีที่แล้ว +22

    "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....

  • @Nurpus
    @Nurpus 2 ปีที่แล้ว +34

    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.

  • @henrykrider179
    @henrykrider179 2 ปีที่แล้ว +23

    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
      @skussy69 2 ปีที่แล้ว

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

  • @OSRS_KQs
    @OSRS_KQs 2 ปีที่แล้ว +18

    @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
      @starlessstephtx 2 ปีที่แล้ว +6

      I would be really interested in this

    • @OSRS_KQs
      @OSRS_KQs 2 ปีที่แล้ว +5

      @@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
      @barbedwire83 2 ปีที่แล้ว +5

      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
      @jtktomb8598 2 ปีที่แล้ว

      They would only contain bacteria invisible to a microscope IMO

  • @jimurrata6785
    @jimurrata6785 2 ปีที่แล้ว +7

    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
    @kk4pqr 2 ปีที่แล้ว +8

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

  • @vitamink1028
    @vitamink1028 2 ปีที่แล้ว +6

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

  • @randompheidoleminor3011
    @randompheidoleminor3011 2 ปีที่แล้ว +30

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

    • @fikrihaikal837
      @fikrihaikal837 2 ปีที่แล้ว

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

  • @archionblu
    @archionblu 2 ปีที่แล้ว +2

    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!

  • @grandexandi
    @grandexandi 2 ปีที่แล้ว

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

  • @jean-mauricenestler3761
    @jean-mauricenestler3761 2 ปีที่แล้ว +17

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

  • @NewMessage
    @NewMessage 2 ปีที่แล้ว +7

    _Steve Rogers has left the chat_

  • @Giancarlo_SO
    @Giancarlo_SO 2 ปีที่แล้ว +3

    Another fantastic video, thank you all who worked on it

  • @jubb1984
    @jubb1984 2 ปีที่แล้ว +2

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

  • @TheSLOShadow
    @TheSLOShadow 2 ปีที่แล้ว +9

    HAIL HYDRA!!!
    HYDRA DOMINATUS!

  • @PPYTAO
    @PPYTAO 2 ปีที่แล้ว +4

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

  • @annapeters2255
    @annapeters2255 2 ปีที่แล้ว +8

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

  • @tomhorseman9832
    @tomhorseman9832 2 ปีที่แล้ว

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

  • @syber-space
    @syber-space 2 ปีที่แล้ว +10

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

  • @Totalinternalreflection
    @Totalinternalreflection 2 ปีที่แล้ว +21

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

    • @mimiteas
      @mimiteas 2 ปีที่แล้ว +4

      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
      @Totalinternalreflection 2 ปีที่แล้ว +4

      @@mimiteas oh okay thanks for the info.

  • @danieldevito6380
    @danieldevito6380 2 ปีที่แล้ว +2

    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.

  • @paulpritchard1980
    @paulpritchard1980 2 ปีที่แล้ว +3

    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.

  • @sputnikjones2477
    @sputnikjones2477 ปีที่แล้ว

    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...

  • @horsetuna
    @horsetuna 2 ปีที่แล้ว +8

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

  • @Astroboy9586
    @Astroboy9586 2 ปีที่แล้ว

    Mindblown on how detailed these video is!

  • @bengoodchild883
    @bengoodchild883 2 ปีที่แล้ว

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

  • @TheBogstaverne
    @TheBogstaverne 2 ปีที่แล้ว

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

  • @CarminesRCTipsandTricks
    @CarminesRCTipsandTricks 2 ปีที่แล้ว

    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.

  • @harikrishnas7960
    @harikrishnas7960 2 ปีที่แล้ว +3

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

  • @Larsanator
    @Larsanator 2 ปีที่แล้ว +1

    Ty for the vid!

  • @garlanddavidson6845
    @garlanddavidson6845 2 ปีที่แล้ว

    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
    @exploremicroscopy 2 ปีที่แล้ว

    Stunning photomicrography!

  • @JamsGerms
    @JamsGerms 2 ปีที่แล้ว +8

    Thanks Deboki for this awesome script and narration!

    • @luisaparodi8571
      @luisaparodi8571 2 ปีที่แล้ว

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

    • @okidokiboki
      @okidokiboki 2 ปีที่แล้ว

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

  • @finaltheorygames1781
    @finaltheorygames1781 2 ปีที่แล้ว +1

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

  • @mattclark7752
    @mattclark7752 2 ปีที่แล้ว +5

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

  • @dbell92
    @dbell92 2 ปีที่แล้ว +1

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

  • @Mrcryptidsarereal
    @Mrcryptidsarereal 2 ปีที่แล้ว +5

    Hail Hydra!

  • @051adam
    @051adam ปีที่แล้ว

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

  • @oneshotme
    @oneshotme 2 ปีที่แล้ว

    Enjoyed your video and I gave it a Thumbs Up

  • @parulkakkar9768
    @parulkakkar9768 2 ปีที่แล้ว

    Wonderful work

  • @omegalightning5715
    @omegalightning5715 2 ปีที่แล้ว

    Beautifully done

  • @cosmoplakat9549
    @cosmoplakat9549 ปีที่แล้ว

    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.

  • @nadaehab8063
    @nadaehab8063 2 ปีที่แล้ว +5

    My fav channel ❤️

  • @2l84t
    @2l84t 2 ปีที่แล้ว +2

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

  • @viliussmproductions
    @viliussmproductions 2 ปีที่แล้ว

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

  • @KPdewstar
    @KPdewstar 2 ปีที่แล้ว

    This channel is incredible.

  • @WanderingShinobi
    @WanderingShinobi 2 ปีที่แล้ว

    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

  • @Astor_V
    @Astor_V 2 ปีที่แล้ว +5

    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
      @hisakini 2 ปีที่แล้ว +1

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

  • @issouamine217
    @issouamine217 2 ปีที่แล้ว

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

  • @ptarmigan1356
    @ptarmigan1356 2 ปีที่แล้ว

    Wow that was amazing

  • @commontater6274
    @commontater6274 ปีที่แล้ว

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

  • @Dradeeus
    @Dradeeus 2 ปีที่แล้ว

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

  • @madisont3123
    @madisont3123 2 ปีที่แล้ว

    this channel is amazing

  • @terrypitt-brooke8367
    @terrypitt-brooke8367 2 ปีที่แล้ว +1

    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
      @massimookissed1023 2 ปีที่แล้ว

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

    • @JamsGerms
      @JamsGerms 2 ปีที่แล้ว +1

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

    • @terrypitt-brooke8367
      @terrypitt-brooke8367 2 ปีที่แล้ว

      @@JamsGerms got it! thanks!

  • @odiumimbues
    @odiumimbues 2 ปีที่แล้ว

    everything is so bubbly.

  • @Allan_aka_RocKITEman
    @Allan_aka_RocKITEman 2 ปีที่แล้ว

    I remember learning about these little guys in high school.

  • @ottoia9126
    @ottoia9126 2 ปีที่แล้ว +2

    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?

  • @draygoes
    @draygoes 2 ปีที่แล้ว +1

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

  • @angeluslupus
    @angeluslupus 2 ปีที่แล้ว +3

    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.

  • @lknanml
    @lknanml 2 ปีที่แล้ว

    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.

  • @unvergebeneid
    @unvergebeneid 2 ปีที่แล้ว +2

    I really enjoyed Finding Nemo, Microcosmos Edition!

  • @Tomer-Barak
    @Tomer-Barak 2 ปีที่แล้ว +2

    We will appreciate an update regarding the microscope

  • @melodynice7938
    @melodynice7938 2 ปีที่แล้ว

    Complexly amazing

  • @rosesacks7430
    @rosesacks7430 2 ปีที่แล้ว

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

  • @genocanabicea5779
    @genocanabicea5779 2 ปีที่แล้ว +3

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

  • @PaulSteMarie
    @PaulSteMarie 2 ปีที่แล้ว +6

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

    • @RJFerret
      @RJFerret 2 ปีที่แล้ว +2

      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.

  • @slimelich
    @slimelich 2 ปีที่แล้ว +2

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

  • @207shark
    @207shark 2 ปีที่แล้ว

    Man i love seeing the monster plaguing my aquarium

  • @valentin_te
    @valentin_te 2 ปีที่แล้ว

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

  • @blazertundra
    @blazertundra 2 ปีที่แล้ว

    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.

  • @thangchinsiamguite4725
    @thangchinsiamguite4725 2 ปีที่แล้ว +1

    Themselves can regenerate there entire body

  • @Maxiloup
    @Maxiloup 2 ปีที่แล้ว

    this is so beautiful

  • @smaug131
    @smaug131 2 ปีที่แล้ว

    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.

  • @jek__
    @jek__ 2 ปีที่แล้ว

    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

  • @asdfjkli
    @asdfjkli 2 ปีที่แล้ว +3

    The narration is really good in this video!

  • @rplanet_ua
    @rplanet_ua ปีที่แล้ว

    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?

  • @malootua2739
    @malootua2739 2 ปีที่แล้ว +1

    I swear that hydra are the octopus of the microcosmos

  • @bloodandempire
    @bloodandempire 2 ปีที่แล้ว +1

    So awesome 😍

  • @ryogamestation
    @ryogamestation 2 ปีที่แล้ว

    3:12 Mac wants the Flamethrower.

  • @00bikeboy
    @00bikeboy 2 ปีที่แล้ว

    What kind of microscope do you use to make these?

  • @sommelierofstench
    @sommelierofstench 2 ปีที่แล้ว

    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.

  • @samiamrg7
    @samiamrg7 2 ปีที่แล้ว

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

  • @AWeebAteMyBaby
    @AWeebAteMyBaby 2 ปีที่แล้ว

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

  • @T.J
    @T.J 2 ปีที่แล้ว +6

    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
      @anglojojo 2 ปีที่แล้ว +1

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

    • @T.J
      @T.J 2 ปีที่แล้ว

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

  • @Ajeet_Bharadwaj
    @Ajeet_Bharadwaj 2 ปีที่แล้ว

    That's what reading biology is a journey

  • @1TakoyakiStore
    @1TakoyakiStore 2 ปีที่แล้ว +7

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

    • @vylbird8014
      @vylbird8014 2 ปีที่แล้ว +1

      The Kool-Aid mascot character comes to mind.

  • @TheBezkaune
    @TheBezkaune 2 ปีที่แล้ว +4

    I guess there is a reason why Hank had skipped this video, the narrator lady has a good voice, but damn, I miss the vibe that these videos had. Please, come back Hank!

  • @martf4701
    @martf4701 2 ปีที่แล้ว

    4:10
    " not a plant, but an animal after all.."
    Same as corals.
    How come sea stars seem dead when taken out of the water, but regain movement when put back in water?
    Do they always get brought back to life when returned in water? Or there's a limited time out of water ?

  • @CMZneu
    @CMZneu 2 ปีที่แล้ว

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

  • @2plusdarkness
    @2plusdarkness ปีที่แล้ว

    That flatworm is out there playing monster hunter