Life Without Oxygen? Challenge Accepted
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- Опубліковано 21 жов 2024
- Slimy, a little smelly, maybe even a little gross, but to many organisms, the oxic-anoxic transition is a shifting chemical boundary that has created a challenge for life...a challenge it conquered.
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Not sure why but this is my favorite thing to watch right before bed. -John
Me to 😊
*too
@@BitterTast3 which came first?
Your name, or your comment?
What came first the comment or the reply 🤔
"Thanks, oxygen!"- Rarely has the internal tension between Microcosmos Hank and SciShow Hank been more palpable. :-)
The real challenge was actually living WITH oxygen
Yeah, life began on an earth without oxygen, but then it was released as a waste product until life was forced to adapt and start utilizing it. Chemists frequently have to keep oxygen away from their reactions to keep them from being spoiled. So as gasses go, from a non-human perspective at least, oxygen is pretty noxious and corrosive.
@@rdbury507 yo that blew my mind
@@jds189 See en.wikipedia.org/wiki/Great_Oxidation_Event for more info.
Basically all animals were so done with plant farts that they started using it as fuel. Great!
Yep for our complex (probably Asgardian) archaea ancestors it seems to have involved literally assimilating an oxic bacterium which is kind of a mindboggling adaptation.
Beautiful little watery bags of life
as a big bag of red water i liked this comment
Tits?
On our beautiful danger-ball
I once saw humans described by a microbial life form as Ugly Giant Bags Of Mostly Water.
ArmyOfAll Star Trek the Next Generation
....hmmmm time for an Eons crossover about the rise and fall of early anaerobic vs. aerobic life? :O
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Yummy yummy
7:48 "NEEYOOOOOOOM!"
Lmao
Speeding ciliates
HANK. HANK.
I've already said it but I cant get enough of that soothing voice in this series, you're really killing it! 😍
I must agree.
Actually, I had to read the credits before I knew it was Hank that was narrating. I really wanted to know bc I really liked the voice. I was surprised.
1:07
Hydra: Ho-de-hum I guess I'm just hanging out in mid water... normal life here...
Water Flea: *If I stay REALLY STILL maybe I won't get eaten*
My favorite part of Tuesdays are these videos. Them and the tacos.
"Today on the Microcosmos, the bacteria in your tacos"
😥😥😥
Little Macromonas doin' the macarena hahaha
I love how colorful these are. I never thought of anaerobic micro-organisms as being colorful, or even very active. It's been decades since I was in any sort of biology class of course, but at least back then, the way that anaerobes were discussed made them sound like strange, alien creatures that just kind of hung out. As if metabolizing sans oxygen was SO difficult that they had to be really still and conserve what energy they could make, I guess.
Maybe the understanding then was different, less nuanced than it is now, but it's still fascinating to learn this new aspect of creatures that I thought I knew a little about. It's nice finding out that there's more to learn!
Hank sounds like he's trying to seduce me with science.... and it's working.
It sounds like he's giving a deep dive into playstation 4 tech.
I'd like a channel where quiet-Hank reads bedtime stories. I really like that voice.
Yeah, I can use it when I get insomnia. Love the videos and those little critters wiggling around, haha.
I'd like to hear him read german grade bed time stories tbh
I love scishow so much but I used to watch every episode on low volume and 0.75x speed to try and get the same atmosphere as this channel. And then this channel happened! Still wish I could get my mixed-science dose in a manner closer to this but I really appreciate microcosmos!
The Pencil Cunts Where an owl eats a kid? Nope.
I am honestly surprised that this channel hasn't got a million subscribers already... Like... I can't put my finger on a reason for this... It has interesting content, narrated excellently by one of youtube's most popular creatares....
Why so...?
Maybe because it was created only a few months ago
It is new.. and many sad folks are focused on the mundane social media phenomena. This is one of the best natural science shows available on the internet. Kudos to all that bring this gem to us.
I tell everyone I know about it:)
The majority of the People are not ready for this
I hope this channel will reach 1 million subscribers soon.
As always, splendid. If you're still accepting challenges, I'd like to raise the bar with one word: extremophiles.
Thank you again for the fascinating video!
There's a scishow tangents podcast about extremities that's worth a listen
I watch this when I want to relax. I don't comment too often on videos. But this is just so soothing.
3:40 wait wait wait, these Thiospirillum things, that live in anoxic environments, is that the Purple Earth that was talked about by PBS Eons sister channel?
Yep. Purple sulfur bacteria.
So one thing I was wondering while watching these videos is: How come there is a two dimensional aspect to the movement of the organisms? It's like they prefer to move vertically/horizontally, not "up" and "down" towards the camera. Is it just because the glass it that far apart from them and is just blocking the way?
AnakimLuke the larger organisms can’t move up or down because the coverslip blocking the way. The reason we don’t see the others go up or down is probably because the footage was rejected. The depth of field at these magnifications is tiny, so a little movement up or down completely blurs the subject.
If you look at the microbes that aren't being talked about you can sometimes see them going in and out of focus. That is them moving in the 3rd dimension.
You can see some depth of things on the smallest of them. You can see as some go in and out of focus, which is them moving towards and away, hence 3rd direction. However they are under a slide, so have a very small space, basically on 2 dimensions. Otherwise how can one focus a microscope on moving things?
At least in the case of those spinning/spiraling sulphur bacteria, their movement across the gradient of sulphur and oxygen concentrations would be vertical, but because they're in a cover slip capped slide they can't. This requirement for a complex 3d ecosystem may be one of the main reasons it's so hard to cultivate them in the lab, and especially difficult to observe them continuously while doing so.
they do! it's just that they go out of focus if they do
I'm trying to imagine the world before the Great Oxygen Catastrophe. So fascinating to think about!
there was no internet, so it probably sucked
I imagine organisms were much, much less mobile. Not just because certain familiar structures for movement might not have evolved yet, but just because anaerobic respiration is ridiculously less efficient. While it's an oversimplification, the general comparison is 2 ATP per molecule of glucose for anaerobic respiration vs 38 for aerobic. (Obviously, organisms that have metabolisms involving end-stage electron acceptors will have a better payout, but this is necessarily broad)
Ignoring the actual difficulty of acquiring nineteen times the food for the same energy payout, I find it interesting to consider the mobility restrictions all the extra mass would impose. After all, if you need to have internal food storage that is nineteen times more massive, then that's even more energy that will be required to move an organism around--which would radically compound with the lower energy available for movement from respiration.
Seriously you can look at the Chemistry at the earth’s vents in the deep oceans if you want to look at this subject.
@@Jobobn1998 Why do most of the organisms here move just like aerobic organisms then and Spirochetes actually move rapidly?
Once again and as always, absolutely stunning and beautiful content. This channel better never stop creating such beauty. The world needs this science!
I really wanna see a Journey to the Bloodstream and see the tiny life in blood with these beautiful cameras
I think anything alive in blood will quickly stop being alive
@@minepose98 Hey. Dont do that. Stop it
Suddenly these videos have become my favorites. Keep up the good work!
I love an atmosphere while reading, being able to look up from your book and see something in nature that just feels "right". I turn autoplay on, go to fullscreen, and mute Microcosmos while SPORE OST plays in the background. Perfect.
7:30 go spinny boi go!
I didn't care a whole lot about the channel when Hank first announced it but now that I actually started to work through the backlog of videos, it's quickly becoming one of my favorites. Everything is just spectacular from the music and narration to the footage itself. Keep up the amazing work and thanks for showing me this incredible tiny world that surrounds me.
Vid should have been called "Of Mud And Microbes"
Bacteria and archaea are where it's at in terms of exotic electron acceptors- they breathe metal oxides like iron oxide and manganese oxide, nitrate, nitrite, halocarbons, sulfate, and even CO2. Last I looked at it years ago there was just one or two known protists that could nitrate. But I think suboxic marine sediments and water columns would be a very interesting place to look for protists!
Thanks for including the magnifications!
Cheers,
Chris
Thank you to the whole crew, the content you produce is amazeballs!
When I left a bath cleaning scourer on the side of the bath for too long it started to grow purple patches. After reading that most of these bacteria like anoxic conditions I wondered if this was the reason they were hiding in the sponge, and how they avoided too much oxygen. Now it seems more likely they may have been Achromatium or one of its pals.
Fascinating!
Another wonderful, ethereal, meditative, and beautiful production from the Microcosmos! 💞
I was ready for 30 minutes of anoxic footage and talk, the end of this episode came surprisingly fast. That definitely means an impactful and fascinating work. Thank you
I really like the bacteria stuff. Can you do one on hospital infections? C dif, MERSA etc?
This channel really helps with my recent stress, So glad I found it
A quick suggestion, these videos are amazing and awe inspiring. I think they could be improved by pointing at the specific thing being talked about in the video somehow.
The video quality and educational value is so well done, especially for a youtube video. Keep it up multicellular man!
This is my new favorite channel!!
7:56- Go home, _Macromonas,_ you're drunk.
Thank you for making these videos. I, for one, have been glued to your subscription. I hope you don't stop making them. Really, they're the most enjoyable and enlightening shorts I have viewed I've quite some time. Thank you again! 😁
This is such a great channel. Keep up the work cobbas
I fucking love this channel. Please never leave my life! You legit just gained a patreon.
So good! You should do one on magnetotactic bacteria, that often live in this oxic-anoxic transition zone :-)
They're such a pretty purple! :)
2:42 vibrating chaos snake!
I was really waiting a "life, uh, finds a way" at the end
Hands down this is my new favorite youtube channel. Incredible
it would great to see an episode that goes into bacteria’s exploits of eukaryotic organisms. i’m not yet at the point in my education to know how possible that is but it would be an amazing experience to see the affects on the host organisms
This is a fantastically gripping channel!
Journey to the Microcosmos should be nominated for an Emmy if that's even possible!
It's late at night and I'm only 50 seconds in and im almost asleep, not from the video his voice is just so darn calm
Love the video and music great job microcosmos team love the video’s
I love this series, is there a channel that is similar for things going on in the humsn body? Like what cells do etc
7:48 _nyoom_
COOL SOOTHING VOICE... MAGICALLY RELAXING...
Another facinating video. This is becoming my favorite channel. What kind of equipment do you use? I would love to get a microscope and look at tiny worlds too.
Awesome new video
*There's two things perfect in this world.*
Journey to the Microcosmos,
& More Journey to the Microcosmos.
Don't forget ZeFrank!
And don't forget chuck Norris
Look up Bladon Springs in Choctaw County, Alabama, sometime. It's a natural spring that is high in sulphur-fixing bacteria. I've collected and drank water from the well on the property -- is delicious and harmless, when chilled, but is also visibly yellow in gallon amounts!
Could you show the horrible (I assume they are horrible) micro-organisms of a stick in a metro train (the one all people grab to manage staying up). Recently I have read an article saying there is many forms of life not common in the metro : maybe it is true. I think you can pick the micro-organisms using feather duster (or something like that) and after that, add some water to be able to observe them. Good luck if you do this and thank you for other videos ;-)
:-)
I like how the spirochete spazzes out like my worst nightmares
This might be my favorite channel, and I’ve been watching UA-cam for a decade
Dang.. I would have never guess that I would become so mesmerized by the micro world as I have become.. I subed about a month or so ago and have peruse some of your videos.. I am captivated! Help prisoner by the amazing world I see before my eyes.. (You should see this on my 70" 4k tv screen!) Such a wonderful idea.. Thanks to you all, carry on, and ya all be safe with them micro bugs.. thanks again!
Amazing how calming and captivating this stuff is, isn't it?
@@TheRogueWolf it's it though.. fascinating .. who knew?
The music in this episode is especially good
Twisted Marker I think it’s always transcendentally apropos, but, yeah, this episode’s was really “on”.
Love the subject, great writing, Hank's narration is tops...
The background music was a bit distracting though. Maybe it's just me, but it seemed louder than usual. I'm sure it has it's uses, but I'd personally prefer it a bit quieter.
Thanks for the video though!
I like to see the living probiotic microbes we have in our food
8:22 the narration suddenly reminded me of Carl Sagan blue dot ... When he said "every .. every"
Thank you Journey to the Microcosmos !!!
want more predators of the microcosmos! 6:42-7:02 felt like some part of Jaws, and I like that we could see through the beast, it could almost be considered symbolic of something...
If you guys ever made a 20 or 30 minute video, I'd totally watch it
YAY! Just in time for me to be able to watch on my lunch break, so i don't have to wait until the evening :D
I swear I am loving this chanel
Journey to the Microcosmos is the best ending to the start of the week. Even in the face of negative there is still always positive : )
5:54 is a very large party being thrown but the only difference is that the Achromatiums don't care about the party at all!
How do you film anaerobe microbes? I can't imagine how you'd keep oxygen out of the sample.
There are anaerobic organisms which can tolerate oxygen to a certain extent (aerotolerant). But for obligate anaerobic ones you could probably ad a reducing agent (I'd imagine thiosulfat could work) to reduce any dissolved O2/ROS. But I can't guarantee that this is correct
And you could also work in something called a anaerobic chamber, but I don't know if they used one
What a treasure of a channel
Ever since its conception this channel has been a gem.
Do you need to do any special precautions while preparing slides for these? Since I'd imagine that while preparing a slide normally, these anoxic micoorganisms would be exposed to much higher oxygen concentrations than what they have in their natural environment.
Then again, this would probably be a lot more of an issue with those microorganisms that, for a lack of other electron acceptors, have to under fully anaerobic conditions resort to fermentation, or who utilise even more exotic metabolic pathways like the methanogens.
I get SO excited to see a new video from this channel! Liked and Shared :)
Still love this channel. Nothing like it anywhere else.
Our world is so vastly complex and wonderfully amazing! Thanks you for sharing your talents👍
Wow what a coincidence! In my microbiology lab, we are just now inoculating and cultivating anaerobic bacterial from mud. Great video!
I don't know how long you've been making these videos, but this looks amazing
Robots on Mars, men on the Moon, amazing close-up ups of Pluto, Hubble space telescope that gives us amazing pictures.... but we can't grow some sulfur bacteria in a lab.
Gives you some perspective.
I enjoy the background music. Thanks.
I love to see a video about all the single celled organisms that live inside the human body but are not a part of it
7:49 Cillate: I REALLY FAST!!!
Brilliant! Thanks so much for this series.
Love the content, especially about purple bacteria. Thank you
Something that struck me while studying microscopic soil flora and fauna, I was struck by just how incredibly viscous water appears to be at these magnifications, almost jelly like, which amplified my second observation which was the incredible speed many of these organisms move at, given this extraordinary medium. your thoughts? perhaps employing a degree of electrostatic attraction/repulsion for propellant? The body weight/speed, duration of motion appears almost miraculous otherwise to my eyes.
this chanel is the only one that i watch with HD, everione else gets 144p
Until these videos it never occurred to me that cells can move in 3D. I always pictured them as flat creatures that get around like snakes
I learned a great deal from this video! Thanks for an unexpected and wonderful experience!
What are those big long green thingies that seem to be in every slide? Are they moving under their own power? They always seem to move along their long axis.
Suggestion. Do freeze-frames and draw a line to each individual object on-screen that you can identify... It's frustrating not knowing what some of this stuff is.
You guys rock, I love your work, thank you very much.
Oh my! When you said "every gradient shifted" the Metopus shifted and made me appreciate more about your "I don't know the word" skills.
What is it called really? Is it cinematography or storytelling, or both or something else? But these are little things makes me appreciate the work more.
I think Commentary-cinematography are the best words
YES
I love this show. The tenacity and ingenuity of microscopic life is a balm for the vapid disappointments and ennui of my modern human existence. X3
We need some of these amazing little critters to eat and break down plastic
Amazing as always!
could you do more videos based on how the the organisms adapt to the challenges they face in the environment they are in