The Bizarre Beast with Clear Blood

Рет қаралды 374,003

Күн бұрын

The crocodile icefish has clear blood, a genetic mutation that should have meant GAME OVER, but it didn't. It just happened in the right place at the right time.
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This month's pin is designed by Reimena Yee. You can find out more about her and her work here: reimenayee.com/
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Host: Hank Green (he/him)
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#Icefish #Antarctica #BizarreBeasts #fish
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Sources:
• The Making of the Fitt...
ucmp.berkeley.edu/vertebrates...
www.nature.com/articles/natur...
phys.org/news/2010-07-biologi...
www.quantamagazine.org/icefis...
www.smithsonianmag.com/smart-...
advances.sciencemag.org/conte...
link.springer.com/article/10....
www.fishbase.org/summary/Champ...
jeb.biologists.org/content/20...
courses.lumenlearning.com/che...
www.ncbi.nlm.nih.gov/pmc/arti...
science.sciencemag.org/conten...
citeseerx.ist.psu.edu/viewdoc/...
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Images:
www.storyblocks.com/video/sto...
www.storyblocks.com/video/sto...
www.storyblocks.com/video/sto...
commons.wikimedia.org/wiki/Fi...
www.storyblocks.com/video/sto...
www.eurekalert.org/multimedia...
vimeo.com/339460082
www.istockphoto.com/vector/ea...
• I Travelled 10,000 Mil...
• Unfrozen: Icefish of t...
vimeo.com/showcase/6097689/vi...
www.storyblocks.com/video/sto...
www.storyblocks.com/video/sto...
www.storyblocks.com/video/sto...
• Scotese Plate Tectonic...
svs.gsfc.nasa.gov/3884
www.istockphoto.com/photo/fro...

Пікірлер: 499

@KrazyKaiser 3 жыл бұрын

So I wanted to see more footage from "Henry Kaiser" in the artic ocean, and I looked up "Henry Kaiser" and a bunch of guitar videos popped up. I thought "This must be the wrong Henry Kaiser." Turn out no, he's a guitarist AND he does artic diving. Cool guy.

@darstern9233 3 жыл бұрын

sounds like something Henry Kaiser himself would say, Mr. KrazyKAISER 🧐

@SmokeyEdits 3 жыл бұрын

Please tell me the username is just a coincidence....

@matthewwagner47 Жыл бұрын

Great comment.

@caroleanderson4020 Жыл бұрын

Nice shirt!😍

@wiggletonthewise2141 3 ай бұрын

Hell yeah, he shreds and treads (arctic water)

@miriamviars3551 3 жыл бұрын

I'm a big fan of Hank's shirt and this strange fish

@mei_eli 3 жыл бұрын

My thoughts exactly 😁

@ElectricalExistence 3 жыл бұрын

Evolution is real > all races are equal.

@Her_Viscera 3 жыл бұрын

@@ElectricalExistence what

@ElectricalExistence 3 жыл бұрын

@@Her_Viscera think about it normie.

@hiimryan2388 3 жыл бұрын

Electrical Existence English please

@wakjagner 3 жыл бұрын

Ah bummers, so rising ocean temps will definitely affect these very unique critters very negatively.

@fossilfighters101 3 жыл бұрын

f in the chat for the icefish

@nicholasneyhart396 3 жыл бұрын

On a small up side, the coastal areas will become colder and snowier, helping to restore the range of moose on the east coast because more moss will grow in the spring.

@bezoticallyyours83 3 жыл бұрын

😞

@andresmarrero8666 3 жыл бұрын

It is not going to be happening that fast. They are still in one of the coldest places in the planet so they probably would be able to adapt.

@syos1979 3 жыл бұрын

@@andresmarrero8666 Unlikely, even if the waters warm up just high enough to melt the ice it'll put them in competition with more red blooded fish and also would render their lack of hemoglobin a huge disadvantage in warmer waters.

@rfldss89 3 жыл бұрын

But so wait, does it still have erythrocytes or is it missing those too? Edit: googled it, they sometimes (but rarely) have erythrocytes (aka red blood cells, but they're not actually red in this case), but they basically don't do anything. And some also don't have myoglobin, or at least not in all of their muscles, which is also crazy

@SameerKumar-jf5mi 3 жыл бұрын

lmfao

@officersoulknight6321 3 жыл бұрын

‘How are you still alive?’ ‘I honestly don’t know’

@kyrab7914 3 жыл бұрын

Thank you for the knowledge sharing. Sincerely, Too lazy to Google

@AdamOwenBrowning Жыл бұрын

they would taste really weird.

@AnnoyingNewsletters Жыл бұрын

@@officersoulknight6321 I mean the line between not alive and alive is fuzzy enough at the viral end of the debate. I'm sure it applies just as much to complex life missing what should be essential to maintaining life.

@quitlife9279 2 жыл бұрын

Are you sure the lack of haemoglobin isn't an advantage? The elimination of the need to produce red blood cells could have saved them a lot of energy and nutrients that could be used elsewhere.

@devinnall2284 2 жыл бұрын

It probably evens out since they need 4x more blood

@quitlife9279 2 жыл бұрын

@@devinnall2284 blood without haemoglobin is probably not much more than water, and it's a fish...

@asdu4412 2 жыл бұрын

Presumably they wouldn't have ended up with "super low metabolic rates" (which I assume implies it's lower than the average for antarctic fish) if forgoing haemoglobin was a net energy gain.

@isaachess9356 2 жыл бұрын

@@asdu4412 forgoing the production of hemoglobin might be a way to reduce metabolism even more.

@aytaf5430 Жыл бұрын

@@quitlife9279 even if makinv it is easier the energy required move 4× times the volume of blood aka heart beat and stroke volume would consume energy. So in the end i think ig maybe a bad adaptation or at least neutral.

@ireallyhatemakingupnamesfo1758 3 жыл бұрын

I feel bad that I’m too broke to get the pins but I love the content that you guys make! I really needed a shot of curiosity to get me away from... **gestures broadly**

@lilchibee 3 жыл бұрын

@xploration1437 3 жыл бұрын

Broadly?

@lolkayleen2757 2 жыл бұрын

lmaoa so true love the gesture

@AnnoyingNewsletters Жыл бұрын

@@xploration1437 yes, gestures broadly at everything in their vicinity, and then some. Essentially, Calgon take me away, escapism.

@stevenhall8964 3 жыл бұрын

Because of this adaptation if an icefish found itself in warmer waters, it would literally drown, not being able to extract enough oxygen from the water around it.

@ruslbicycle6006 3 жыл бұрын

Two questions this doesn't answer: -Why does it swim with it's tail bent sideways? -Isn't it an obvious advantage to not require so much iron/hemoglobin? Iron is hard to get, for humans it may be what pushes us to eat meat, harder to catch than just eating plants. An maybe lack of iron allows lower metabolism? I'm just guessing, but it seems like the discussion in the video isn't addressing these obvious questions.

@xEricC1001x Жыл бұрын

I also wondered about the tail. As an aquarium keeper it's common knowledge that that exact look means the "fishkeeper" who took the photo in captivity had poor water quality with too high of nitrates over an extended portion of the fish's life and the chemical led to a deformation of the spine.

@janjanzen1218 Жыл бұрын

Hi, thats what I suspect as well. Iron is very rare in the southern ocean, as iron usually comes from terrestrial sources and there are just less landmasses in the southern hemisphere. In the Atlantic a lot of Iron gets blown in with winds from the Sahara. I now that a lot of species of Phytoplankton in the Antartic have very intersting adaptations to low Iron concentrations. As Iron is an essential part of hemoglobin, it would surly save a lot of Iron not toproduce it

@VyvienneEaux 3 жыл бұрын

In my intro college biology class, we learned that the icefish had the advantage of lower blood viscosity because it lacked hemoglobin.

@emilysmith2965 Жыл бұрын

Is that an advantage? Seems like it wouldn’t clot very easily. But does it need to be more slippery in order to squeeze whatever efficiency it can out of the oxygen inside it?

@anonomooose Жыл бұрын

@@emilysmith2965A lower blood viscosity makes it easier for the heart to pump. This increases blood flow(at least in humans)

@AnnoyingNewsletters Жыл бұрын

Maybe they don't have -platelets- thrombocytes, either? In their niche, it's be alive or be lunch, with not much in between.

@DJFracus Ай бұрын

They would require less iron as well.

@BackYardScience2000 3 жыл бұрын

Clear blood? Oh now that is cool!

@-desertpackrat 3 жыл бұрын

one of the PBS Eons I think, had a video about the evolution of blood and brought up other things with non-red blood, I think one was even like a fuschia color or purplish.

@ScionStorm1 3 жыл бұрын

Invisiblood

@anna_alexandra 3 жыл бұрын

I will have to watch this again. I was just staring at Hank's shirt the whole time... So good (both the shirt and the video).

@DoctorX17 3 жыл бұрын

So what you’re saying is it has ghost blood

@troublewakingup 3 жыл бұрын

That's gonna be the name of my band

@DoctorX17 3 жыл бұрын

@@troublewakingup I'll take 1% royalties for the idea :P

@Gatorade69 3 жыл бұрын

It's a Water/Ghost type Pokemon.

@briannelson3830 3 жыл бұрын

@@Gatorade69 Ice/ghost

@pieoverlord 3 жыл бұрын

@@briannelson3830 Ice/Dragon - check out some of those names. Cryodraco Antarticus? Christ, what glorious nerd named that one?

@fairweathertrains3029 2 жыл бұрын

Always a good day when one discovers *another* Hank Green channel!

@Manj_J Жыл бұрын

Now we need a list of all the Hank Green channels so we can find and watch all of them, though I do quite like the surprise of unexpectedly and spontaneously coming across Hank Green on a new channel every now and then

@LS-xy7zt 3 ай бұрын

@@Manj_J it's like finding another subreddit for cats.

@Vininn126 3 жыл бұрын

I like the physical background. It feels much more "authentic" than the greenscreen

@jesusdiedforyouproofjohn3.16 3 жыл бұрын

Imagine how a lamprey or hagfish would react if it attached to a clear-blooded fish.

@jesusdiedforyouproofjohn3.16 Жыл бұрын

What do you mean?

@nekomimicatears Ай бұрын

@@jesusdiedforyouproofjohn3.16 are you asking yourself?

@kibrika 3 жыл бұрын

I love that it combines two things I love - fish and ice. I just wish it had a cooler name... nvmnd, thought to look up the latin names of specific genera. Cryodraco is there.

@elliotmydude 3 жыл бұрын

evolution is just nature saying "I CAN BE WEIRDER THAN YOU!"

@sion8 3 жыл бұрын

*+*

@mariacharlesworth6593 3 жыл бұрын

They're just built different 🌟💕🧚‍♀️✨❤🌌

@zacharytoth1065 3 жыл бұрын

There is a great book, "The Making of the Fittest" by Sean B. Carrol, that has a chapter on the ice fish. If highly recommend it.

@katconnors 3 жыл бұрын

When you find out Hank says “nit-ches” instead of “neesh-es”.

@rasmusn.e.m1064 3 жыл бұрын

Well, nobody's perfect xD

@emmao6578 3 жыл бұрын

reminds me of the incident with his presentation on the facade of buildings 😂 Although in this instance I think both "nit-ches" and "neesh-es" are considered correct whereas the same cannot be said for "fak-aad" and "fuh-saad"

@Me-vn3gz 3 жыл бұрын

@@emmao6578 I think in the US “nitches” is a common pronunciation

@moonliteX 3 жыл бұрын

@@emmao6578 it's still saad 😆

@desperatelyseekingrealnews 3 жыл бұрын

Like it matters

@NewMessage 3 жыл бұрын

Guess I shouldn't complain that my blood made my face red due to the nip in the air on the way to get the mail this morning.

@OnlyKaerius 3 жыл бұрын

Rosy cheeks is a sign of good health, which is why rouge makeup exists.

@UpcycleElectronics 3 жыл бұрын

Once upon a time, It was the end of Eons, A great link happened, And now I am here. -Jake

@weirdral 3 жыл бұрын

This just kept blowing my mind every time you stated a new fact.

@AnAlbinoGiraffe 3 жыл бұрын

Why does their tail curl like that when they swim?

@nightthought2497 3 жыл бұрын

KZfaq does not like this channel. I have notifications on, and still didn't get a notice for this.

@Xaiff 3 жыл бұрын

Rewatching this... And still got fascinated

@zaplan6762 3 жыл бұрын

Amazing video as always, I'm always looking forward to these every month ! A true treat! Ii was talking to my partner all week about my guesses for this week's topic ! Of course I was wrong but you can't win if you don't play ;) PS: Hank, I love your shirt !

@FloozieOne Жыл бұрын

Funny how questions that you have turn out to have answers you haven't thought of the questions to. I knew ice fish could stand the cold because of the anti-freeze elements in their blood but I never knew that their clear blood held the secret to their success. Once again you have blown my mind and given me a renewed sense of wonder at evolution's ingenuity. You do this all the time and I can't thank you enough.

@emilybrackett2840 Жыл бұрын

I've heard of red blood, and I was stumped by blue blood, and I NEVER EVER heard of different colors of blood. There's always something to learn.

@jacobludwig4236 3 жыл бұрын

Hey Hank, good to see you on yet another pbs digital studios show! Blake at PBS EONS told me to check this out and say "EONS sent me" but im pretty sure you already knew that...

@jacobludwig4236 3 жыл бұрын

(TBH, and i have no idea why, for like 2 months since i started watching EONS I thought you were John Green........)

@immunomich3ll3 3 жыл бұрын

Thanks for the tiktok blurb. I now have another neat sciencey channel go binge

@RamenNoodle1985 3 жыл бұрын

You had me at "naked" 😂😂😂

@saga960 2 жыл бұрын

Having antifreeze in your blood sounds like a cool superpower.

@SandyTag 3 жыл бұрын

Great video, this was super interesting! The case of the icefish seems perfect for exploring the nuances of evolution, this video does a really good job at doing just that.

@InezAllen 3 жыл бұрын

this was fascinating but also reminded me that im viscerally terrified of being underwater

@zolacnomiko 3 жыл бұрын

Joining my compatriots in the desire to let Hank know that I LOVE YOUR AWESOME SHIRT, MAN!!! the fish is cool too

@popenieafantome9527 3 жыл бұрын

Evolution is all about being “good enough” and working with whatever is at hand.

@scorpio6587 3 жыл бұрын

Someone tell that fish he is not swimming right.

@sion8 3 жыл бұрын

They have clear blood, who are you to tell them they're "swimming wrong"?

@ziggykatz12 2 жыл бұрын

Very interesting to see why red blood is so prominent in animals.

@jennifer6278 3 жыл бұрын

I love this channel.

@jonsey3645 3 жыл бұрын

We need some Hank-inspired merch, I WANT THAT SHIRT!

@shellstutes 3 жыл бұрын

I hope y’all still do this when I graduate college and have salary so I can get things like bizarre beast pins (nearly done)

@Hawkwinter01 3 жыл бұрын

Here from Eons, loving this channel already. 💖 The fisherman in me, wants to go there and fish for these strange fish. However, that's far too cold for this hemoglobin rich human. 😋

@isabel.bolivia 2 жыл бұрын

Leave animals alone

@emmiegarvey7895 3 жыл бұрын

omg i learned about this in biology gonna send this to my teacher

@dogboi6639 2 жыл бұрын

"They have really big hearts for fish their size" *casual footage of a vivisection* I wasn't entirely ready for that lmao

@michaelhenshaw-vetmedengli2064 3 жыл бұрын

I click on an interesting-looking vid from a new channel and... Hank is here, too. Dude--do you sleep?

@ag20085 3 жыл бұрын

Amazing videos ! Love it ! I am always excited for new monthly videos .

@JeremyPezmanTaylor 3 жыл бұрын

Do we have an idea how climate change is going to affect this species?

@BizarreBeasts 3 жыл бұрын

These fish delicately fit into very specific ocean conditions. The warming water, drop in dissolved oxygen, and ocean acidification caused by Climate Change will likely be devastating for these fish.

@cajrjustice7286 3 жыл бұрын

Do you guys know much about the siphonophore? It seems like an interesting creature to talk about

@helenadeberdt1313 3 жыл бұрын

I really love these videos so much! Very interesting indeed!

@Savant218 3 жыл бұрын

Must have been "ugly shirt day" at the office !!

@nak3dxsnake Жыл бұрын

This is such a great channel from a narrative writing standpoint. I can already imagine a race of aliens with these properties and knowing why this fish is this way just immediately gives me ideas of how they might function work and what their drive would be. Really cool channel. Hard to believe how alien life on our own planet already is just from slight differences in mutations and environment.

@Jarbles13 3 жыл бұрын

You should do Sea Spiders in a video! Just learned about them in my bio lecture and those little guys are very funky

@redracerb18 3 жыл бұрын

Please do a pin on the mantis shrimp and just how crazy it is with punches that have the same force as a .22 bullet. Its crazy eyes and dress code, as well as its can do attitude

@guymontag9577 3 жыл бұрын

Ah, that's why cold soda keeps its fizz longer.

@nariu7times328 3 жыл бұрын

LOVE the pins!

@MatPress 3 жыл бұрын

So, educator with a question: have you guys ever considered making any sort of companion to these videos, like a Kahoot, Quizzez, etc?I was considering making my own, to draw a bit more of it out of my students, but I figured I would ask.

@Nikki0417 3 жыл бұрын

I didn't know I needed this channel in my life.

@janjanzen1218 Жыл бұрын

Hi, isnt the southern ocean also very depleted in iron? Maybe getting rid of hemoglobin is an advantage for the fish, as the production of hemoglobin uses a lot of that precious iron

@bezoticallyyours83 3 жыл бұрын

Thanks for the neat video!

@ghoultooth 3 жыл бұрын

I’m so happy to have clicked the video and BOOM Hank Green!

@felmlee1876 3 жыл бұрын

frenetic as always, Hank. Please calm down.

@isaachess9356 2 жыл бұрын

Would eliminating hemoglobin and reducing the number of erythrocytes in their blood make more room in their blood for the antifreeze proteins they use? Those antifreeze proteins help them survive in cold water, do to the oxygen rich nature of the water, could reducing hyboglobin to make room for more antifreeze be a good trade off?

@adamgreenspan4988 3 ай бұрын

5:21 would love to know more about why this fish is swimming with its tail tightly curved like that rather than using it to aid propulsion.

@windya5860 3 жыл бұрын

Hey this is awesome! Thank you for such a cool channel!

@MRlebellion 3 жыл бұрын

You just sent fishing vessels from Japan

@docwiz 3 жыл бұрын

These fish are built for these conditions. Thank you Hank, and amazing shirt! Thank you for the great video!

@Itual 3 жыл бұрын

Oh, so this is why Hank disappeared from the Eons channel. This new channel is great, didn’t know about it until I saw it on the new Eons video hahaha

@live4him4eva 3 жыл бұрын

Pretty late to this video but regarding that cold water holding oxygen better fact, is that why hot water from the tap in a cup looks cloudy for a minute from tiny air bubbles whereas cold water from the tap in a cup is almost immediately clear?

@oliviasvahn4090 3 жыл бұрын

Eons sent me and now I’m subscribed to another wonderful channel! 😋

@ApequH 3 жыл бұрын

This is such a weird fish, I love this channel!!

@_mortiam 3 жыл бұрын

Why does it keep its tail fin in that weird position....?

@labreportscience 3 жыл бұрын

Good question. If I had to guess, that one fish was probably in some kind of distress. They get stiff when in distress. They are very anxious in general.....In some of the other footage you can see their mouthes stuck wide open. That's the same kind of stress reaction.

@WireMosasaur 3 жыл бұрын

Quite a few fish curl like that to make themselves "wider" and harder to swallow for a predator (or to put particularly pointy fins as pointy as possible in all directions), so yeah, it's a defensive posture!

@matchrocket1702 3 жыл бұрын

Do ice fish swim around thinking, damn I'm cold?

@dominicmanester8125 Жыл бұрын

When you have a low metabolism already and have to sometimes survive extreme scarcity, not needing to produce haemoglobin would probably be a net benefit. Especially in the Antarctic where bio-available iron is very limited.

@lady8ces177 3 жыл бұрын

Wow, that eye on the pin is not exaggerated at all

@SandyRiverBlue 6 ай бұрын

Hemoglobin or the genes needed to create it also affects the shape of blood cells. I wouldn't be surprised to find out that the shape of heme-less blood cells are ideal for their cold environment.

@unmingerlol 3 жыл бұрын

I prefer when you do the videos, Hank! I know you’re busy though so no pressure.

@austinshoupe3003 3 жыл бұрын

I'm totally the other way. I find Suta absolutely intriguing.

@johnkidd797 3 жыл бұрын

Looks like a shocked and amazed albino pike.

@idontwantahandlethough 2 жыл бұрын

Jeez man, does this channel have an unlimited shirt budget or something? That is yet again a very cool shirt

@colettehenderson6108 3 жыл бұрын

Wait wait wait.... I watch every SciShow and I somehow had no idea about this channel?!

@syrenet 3 жыл бұрын

This one has almost identical head to pike, now wonder it is such a cold blooded fish.

@ThatFreeWilliam 3 жыл бұрын

Moar of these.

@itamarbenitez3737 3 жыл бұрын

this pbs youtube empire, j'adore

@starflckd 3 жыл бұрын

I'm glad I found hank Green on tiktok when I did.. Now I'm here. DON'T EAT GRASS

@hufinnpuff3068 Жыл бұрын

3:22 I think the mutation is deliberate instead of random because of the environment. Also preys tend to stay in areas where there are less to no predators.

@officersoulknight6321 3 жыл бұрын

Funny that so much of the *Ice*fish is white or clear, even the blood.

@nickvanwhatt 3 жыл бұрын

Emia - presence in blood

@MrVeryCranky 2 жыл бұрын

informative and well presented.

@nettlesandsnakes9138 Жыл бұрын

(fishes up an ice fish,) “everyone what is this?” Ninj: “Tomorrow’s wet food!” Shana: “Next weeks dry food.” Greg: “A soup ingredient; now please kill it.” (Guess which one of these is an actual human.)