The Beautiful, Brutal Tentacles of Hydra
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- Опубликовано: 4 июл 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
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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
RUclips: / @jamsgerms
Hosted by Hank Green:
Twitter: / hankgreen
RUclips: / 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... 
Наука
Someone cut off the first video about hydra, so two videos grew back in its place!
XD, Nice one.
Hail Hydra!
Those shots are so _detailed_, it's like I'm actually physically there, floating above the sample. It's awesome!
If you want italics to work with punctuation, you have to add the punctuation inside the underscores, like _this,_ not _this_.
I just got a 4k monitor last week and man I couldn't agree more. This whole channel is gorgeous
The Micro' in HD and bigger than ever, but so transparent we can see right through them !!?!?
yeah, this channel has the best microscope content I've seen RUclips
@@johnjordan3552 I didn't know there were any others :)
Last time I was this early, we were still calling them animalcules
Lmao
Last time I was this early phlogiston powered my lighting system.
The Kerona and the Hydra is like a tiny version of the Clownfish and the Sea Anemone. A microcosm, if you will...
I thought the same. Can’t wait till we know the answer
Hydra, anemones, coral and jellies belong to the same phylum.
Only difference is that clown fish are known to be immune to those toxins.
@@johnanders8760 looks like the Kerina are as well. Perhaps they are not being "stung".. don't know didn't like the narrator
@@patldennis She said that they aren't.
*Hydra exist, devouring everything on it's path
Kerona pediculus : YAY A PLAYGROUND!!
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!
Awwwwwww!
I made a balloon of this thing for an art class, was pretty fun.
Those Kerona things are so adorable, my goodness.
and they are probably on your face
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!
These videos get more detailed and fascinating!
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. 👍
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
Imagine the beauty and awe you would witness if you watched these vids while tripping nuts
@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.
I would be really interested in this
@@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.
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!
They would only contain bacteria invisible to a microscope IMO
"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....
Thank you for the video. The upgrade you guys did is the best thing that has happened to RUclips in a long while.
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.
Literally my exact thought
7:44 "they'll kill the hydra and steal those nematocysts for themselves"...wow that's brutal.
Back in elementary school we had to hold a presentation on our favorite pet and I held one on hydras. Lol
Lol
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!
Kerona pediculus crawling on hydra fingers: "Yubi yubi!"
ah i see, you''re a man of culture as well
HAIL HYDRA!!!
HYDRA DOMINATUS!
Can we get a photo or poster of the Galaxy hydra at 4:54? It looks like a little galaxy in there!
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)
By now I'm preferring Deboki's voice for these especially low-key vids.
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.
I wonder what Tremblay would have thought of carnivorous plants that can move...
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.
Another fantastic video, thank you all who worked on it
Amazing! Thank you! Not only great footage, but great production overall, I especially love the soundtrack.
Beautiful footage as always, I feel transported to another scale of being.
3:59
What? Trembley saw a hydra capture a millipede? !!!! The insect, millipede ? !!
Wow...the crisp and clear, beautiful images...im continuously amazed by how good this channel is =D
Hi new narrator, good job, very easy on the ear and clearly spoken thanks :)
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". 😊
@@mimiteas oh okay thanks for the info.
_Steve Rogers has left the chat_
Hail Hydra!
Absolutely excellent!! I LOVEEE this channel so much!!
Amazing! Thank you :) Looking forward to finding some Hydra with my own scope eventually.
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...
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.
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.
Mindblown on how detailed these video is!
You know what would be a cool a video on the pond tank and it's inhabitants
I can't believe how incredibly beautiful this microscopic world is! Thank you so much for bringing it to life for the public!
I am so glad for the new upgrades! This is so beautiful and fascinating!
The Kerona appear to be grooming the Hydra in a symbiotic relation .
These videos are amazing! It's like going to another planet and looking at alien life.
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)
Ty for the vid!
What happens to the cell wall of diatoms when a nematocyst hits it?
The Kool-Aid mascot character comes to mind.
Stunning photomicrography!
My fav channel ❤️
Interesting... reminds me a lot of animal relationships in marine/reef life.
Amazing video!
Hey, now you have a perfect name for the eventual Vlogbrothers black metal album.
Enjoyed your video and I gave it a Thumbs Up
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?
I remember learning about these little guys in high school.
Beautifully done
4:10 I can't get over this footage. It's so detailed and alien.
We will appreciate an update regarding the microscope
everything is so bubbly.
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?
Wonderful work
This channel is incredible.
I really enjoyed Finding Nemo, Microcosmos Edition!
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?
You can use the side of a coverslip to chop them off to pieces.
-James
@@JamsGerms Ah the master of the microscope! Thank you 😊😊 And thank you @ValiGB for your help as well.
can we dna sequence a octopus and this animal to isolate the regenerative properties and learn more or it doesnt work like that...
I just got my Hydra T-shirt! Thankyou Microcosmos, and for those Shield fans, "Hail Hydra!" :)
Themselves can regenerate there entire body
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
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.
Locomotive nematocysts? how does that work, do they harpoon and pull themselves along or do they just stick to stuff?
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
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.
Wow that was amazing
Thanks Deboki for this awesome script and narration!
This new video on Hydras is so detailed! Congratulations James! And Deboki narrated it very well 😊
thanks for the amazing hydra footage (and for telling me more fun trembley facts!)
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?
I think they're real-speed unless otherwise stated, which does happen sometimes.
All the videos are real-time unless we state otherwise on the screen. :)
-James
@@JamsGerms got it! thanks!
I swear that hydra are the octopus of the microcosmos
Man i love seeing the monster plaguing my aquarium
There are also sea slugs that eat sea anenome tentacles and incorporate some of the un-activated nematocysts into their own body’s defences.
Hi...please make a video about extrusomes or Nematocytes of jellyfish.... Those are some amazingly complex organelles.
What kind of microscope do you use to make these?
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.
this channel is amazing
Hey! Can you guys do an episode on White Blood Cells? I would LOVE to see some good footage of that.
Thanks!!
You didnt say anything about their ability to reform themselves after being blended like a sauce. Yes its Imortal.
That's crazy that it was left out.
They talked about it on a video about hydras two years ago :D
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.
are you mad? he would lose his channel if he spoke negatively about the human experimentation
@@anglojojo well I guess you are correct. True. Maybe they could post that on a new channel.
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.
It looks like that bird-crocodile relationship were the croc allows a bird to eat bits of stuck food from its teeth
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.
Complexly amazing
3:12 Mac wants the Flamethrower.
Great photography here!
Who's the new narrator? The credits still show Hank.
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.
It would be nice if you could show the type of microscopy next to the magnification factor.
That's what reading biology is a journey
What microscope are you using?
Does anyone know anything about something like a hydra or maybe a larvae form? So when I was a kid I took some Minnesota lake water and there were these really wispy things that attached to the glass smaller than a hydra. It seemed like they had more arms than a normal hydra but the body stem was thinner than a hydra arm thin (again very wispy) unlike a hydra which has some substance to it. They'd contract if I tapped the glass. This was 30years ago so that's all i can say on it...
Maybe a younger form or mutation?
@@KenanTheFab After digging into it maybe it was a suctorian ciliate or some other stalked Ciliophora. Still haven't seen something that looks exactly right however. Thanks for replying.
this is so beautiful
first time I've heard this narrator, nicely done 👍
So awesome 😍
Can you tell us what we are looking at. what is "hydra" ?
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 ?