This is a species that hung out with trilobites *and survived what killed them.*

@flickcentergaming680

11 күн бұрын

Now THAT'S impressive. Trilobites were quite possibly the most successful organisms EVER (aside from humans), and these delicate flower-things OUTLIVED them.

@user-ez2tq4vi8f

10 күн бұрын

thanks captian obvious

@RedRaptor78

10 күн бұрын

@@flickcentergaming680humans haven’t been around anywhere near long enough to say we’re successful.

@PCB389

9 күн бұрын

Are you silly? That's not how evolution works.

@Emperor-Quill

9 күн бұрын

@user-ez2tq4vi8f Why is your first instinct to insult someone for sharing a fact they think is neat? Do you think of yourself as better and smarter? For what? Because you know a fact that someone else also knows? Did nobody ever tell you that knowledge is not inherently latent in all of humanity, or are you the type to throw a toddler into a forest and say, "surely if it be truly human, it knoweth how to pick itself up, create fire, and clean the waters to drink of!" Touching grass is not enough to ground you to reality. You need to Piss your Pants, NOW.

“Nah, I’m out” -Crinoid 250 mil years ago.

@rhiannonm8132

24 күн бұрын

does this mean he’ll be back 🫣

@mimisezlol

24 күн бұрын

​​@@rhiannonm8132 I mean the ocean is real big, so maybe? Not on purpose though. The feather star's dad is out for milk.

@jakobraahauge7299

24 күн бұрын

can you do a video on comorans too? They too are called living fossils - they're not! They're a beautifully vivid branch of like!

@ogcurly6256

20 күн бұрын

"Where you goin??" -Sea Urchin

@steelforcezhd9051

11 күн бұрын

is he next up out of the cambrian 👀👀👀💣💣❗❗⁉️⁉️

"before blood existed" Using seawater as blood has gotta be the most interesting fact in this video. That's mind blowing and makes me think that our blood being salty has it's origins in seawater.

@Carlos-bz5oo

24 күн бұрын

Eh, the salt ratio is not the same between blood and seawater

@Blackmark52

24 күн бұрын

@@Carlos-bz5oo "the salt ratio is not the same" So? I don't get your point. I'm not suggesting that blood is the same as seawater, only that it evolved from animals that lived in seawater and didn't yet have blood in their veins.

@janetchennault4385

24 күн бұрын

If you are going in the direction of relating the salinity of seawater to the salinity of blood, you need to start far away from humans. Currently I recall that the Na of sharks is normal at around 600+ mg/dL; for humans it is about 140 mg/dL. So 'when blood began' and 'the salinity of the oceans' are both variables.

@Charity4Chokora

24 күн бұрын

​@@janetchennault4385that seems like good places to start. The cognitive light cone hypothesis from Michael Liven has been used in similar calculations already and seems like it could be applied here.

@arduousJester

24 күн бұрын

If we're looking at all life since we started having things like tissues and organs, so much of us is just "how do we get the ocean, in us, onto land?". Out circulatory and pulmonary system is the best thing we can do without sitting in the ocean and diffusing (instead, air just goes into our damp lungs and diffuses, and then gets shuttled around). All reproduction has been "how do we put baby in ocean?" Baby in ocean contained by soft pouch; baby AND ocean, contained in hard shell; baby and ocean, in special ocean organ (now with slightly less salt!). I'm being reductive of course, but lots of evolutionary traits feel like they're doing something the ocean would have done for us, had we all just stayed like our distant cousins the cnidarians 😂

Surgery must be easy for them. Nurse, I need 50 cc of seawater.

@catboy_official

23 күн бұрын

I'm imagining crinoids as surgeons now 😂

@okankyoto

21 күн бұрын

@@catboy_official All the motions are the same, but when they move away the surgery is done.

@molybdaen11

18 күн бұрын

And now they to get that much seawater without viruses. Good luck.

@adreabrooks11

9 күн бұрын

"Doctor, his arm's off!" "It'll grow back."

@hellomate639

9 күн бұрын

Interesting take. I was thinking surgery might be hard for them on account of the fact that they have no brain.

Sea urchin: *exists Crinoids: "aight, imma head out"

Yeah, I love when one of the oceans filter feeding mops goes for a walk. Shows a zest for life.

@infinitejest441

3 күн бұрын

More like a swim

@yfrit_gg

Күн бұрын

​@@infinitejest441I'd hardly call the sea lily's motion "swimming", but I'm sure he's trying his best.

Biblically accurate angels of the sea.

@hannahdischer4352

9 күн бұрын

I was looking for this comment 😂

@gabriellynch2764

6 күн бұрын

We will find out that they have thousands of tiny eyes covering their arms and that they are technically immortal.

@Mark-in8ju

5 күн бұрын

She looks like Hannah Pearl Davis. They shall repeal the 19th together.

@omega311888

3 күн бұрын

except that the bible is full of contradictions.

@Abdega

3 күн бұрын

@@omega311888 such is life

Hi I’d just like to point out one minor mistake! The animal shown at 1:31 is not a stalked crinoid, it’s a type of polychaete tube worm. You can tell because the ‘stalk’ is smooth and unsegmented, and the feathery tentacles don’t have the right anatomy. There are also generally too many ‘arms’ present.

@dawsie

7 күн бұрын

I had to go and look it up, that looks nothing like the ones I found on the internet all of the worms are segmented at that one you pointed out is not segmented at all. Now I having nightmares of these dam worms yuck…..

@dylaneverett4586

7 күн бұрын

@@dawsie the worm itself is inside the tube. It creates a tube to live in, which is smooth, but the worm inside is segmented

Ah, the ocean, the only place on the planet where animals can look like plants (without the use of mimicry)

@TrungTran-yg3uv

24 күн бұрын

many bugs do the same

@chrisdaignault9845

24 күн бұрын

Probably because it’s a lot harder to filter feed from the air.

@kyrab7914

24 күн бұрын

Lichens would like a word

@meeb_consumer

23 күн бұрын

​@@kyrab7914 *would lich

@pattheplanter

23 күн бұрын

@@TrungTran-yg3uv The stick insects being particularly excellent mimics.

Ah yes, nature's velcro. I can't emphasize enough how much these will stick to you.

@LexYeen

21 күн бұрын

please do not, my imagination is plenty.

@kingmasterlord

9 күн бұрын

crinoid hugs

@bluediamond327

9 күн бұрын

I don't know the name of the phobia but im sure i have it because of what u just made me think of these things thanks 😂😂

@SepiaMaddy

9 күн бұрын

I what way do they stick to you? Did you experience this? I'm fascinated by the thought because they just look like they would feel like a bunch of feathers.

@OnlyKaerius

9 күн бұрын

@@SepiaMaddy They stick to you like velcro does on soft fabric. Yes I have, a couple of times, stuck to my wetsuit leg, but trying to unstick with hands doesn't work because they stick to the hand, luckily I always dive with torches, so I used one of those to remove them. The feel is kinda like glue-covered netting, kinda like those rubber nets you put under bathroom rugs, except stickier, and not as pliable.

A correction for your correction video, at 1:32 that isn't a sea lilly, crinoid or even an echinoid, that's a feather duster worm and type of polychaete worm.

@xant8344

23 күн бұрын

+

@js66613

16 күн бұрын

Yup. Completely different animal phylum. Crinoids are echninoderms and polychaetes are annelids. Also, corals are animals. Albeit different to what we'd imagine animals being, I suppose.

When something that is, for god and everyone, seemingly just a plant Gets up...and WALKS AWAY

@joelzemba4136

24 күн бұрын

For God and everyone 😂😅

@LexYeen

21 күн бұрын

that's a sign I'm in _entirely_ the wrong neighborhood, I tell you what

@hondaxl250k0

9 күн бұрын

Just think. Evolution is proven bs right here

@kingmasterlord

9 күн бұрын

​@@LexYeennah you're broadening your horizons and thats exactly whats needed

@dreammaker9642

7 күн бұрын

Except it’s not a plant because by definition plants don’t move because by definition plant cells have cell walls.

sea lilly: **walks** me: that's illegal

@ravensquote7206

Күн бұрын

And what exactly are you gonna do about it? Swim down there and arrest a mfkr that predates *_the concept of your ancestors' ancestors???_*

The thing I love about scishow comments is you get people arguing in scientific facts

@KRJayster

23 күн бұрын

Science papers are often just long passive aggressive arguments going “nuh-uh!” At some other scientist.

Come for the sea lilies stay for that jacket 😎

@Ultravox5600

23 күн бұрын

I gotta find that jacket, it's so cool!

I love how some really ancient life just keeps on living and it's still here with us (in a cladistic sense, of course species differ now, except in super rare cars they don't at all). We still know so little about our deep past this helps to visualize how life could look like and better imagine it. Crynoids, sponges, many branches of bacteria and archea are around for hair a billion years and more, and they very well be present half a billion or more years after us. They not having blood blew my mind back when i was a child.

@dreammaker9642

7 күн бұрын

The e-coli in your gut predates all animals you can think of 😂 cladistically of course but basically it’s the principle of you don’t change a winning team 😂

you: feather star me, an intellectual: biblically accurate feather duster

They are mesmerizing and amazing, I wish them a long future where they fly into the sky or something, idk, I think they'd like that.

@mecha-sheep7674

21 күн бұрын

Not a lot of thing to eat in the air...

@MCNarret

21 күн бұрын

@@mecha-sheep7674 not with that attitude.

@sherlocksmuuug6692

11 күн бұрын

Another few hundred million years and we will be gone but by then these fellas might as well have figured out how to walk on land.

@Karrdeh

9 күн бұрын

Well they kinda look like biblically accurate angels.

Me: Of course it can Hank, it's a lionfish The featherstar:

@weirdredpanda

23 күн бұрын

I thought the thumbnail was a lionfish at first glance too.

@atgosh

22 күн бұрын

@@weirdredpanda Could be some Batesian mimicry, but I haven't found anything mentioning it

Uses ocean water for blood? Well, little acknowledged fact; Yeah, if you're Navy-Navy and a Navy kid, you know.... during hard up times? Seawater ultra-filtered, and ultra-sterilized (250f/0psi) can be used as basic Saline. I know it sounds nuts, but typical Saline is on par with seawater. Evolutionary touch marks are AMAZING!

@dreammaker9642

7 күн бұрын

Saline is just water, salts and glucose but it’s not sea water or on par with it. If you just IV yourself with sea water you’ll kick the bucket real fast cause one, not nearly the same dosage basically saline will replenish your electrolytes while just sea water even sterilised is going to shoot it up to lethal dose real fast. But point taken but you better off getting fresh clean water, sprinkling some salt and sugar in there. The glucose is important as it speeds the process of hydration for your cells.

@danielculver2209

7 күн бұрын

@@dreammaker9642 I'm high as balls RN so take this with a grain of salt (pun intended), but I think the mass transfer is totally different from drinking seawater. Seawater pulls water out through colon like reverse drinking, but injecting seawater is increasing blood volume by definition of injecting. So if anything the colon would have like a more intense suction LOL phrasing. I could see how it might lead to death if too much were added, but hospital saline isn't a perfect substitute for whole blood anyhow, so it's a matter of which thing kills the patient first: lack of living blood components or salt poisoning. As long as the blood components run out first it doesn't matter what the salt concentration is because the patient would have to be dead before getting sick, thus not getting sick for realsis. But even if that is the final problem, it's not the correct comparison to be making. Your real choices are, "take it or leave it." So if seawater is better than nothing then seawater it is indeed. What is it the glucose id doing? That's really interesting and it's got me curious :)

@dreammaker9642

7 күн бұрын

@@danielculver2209 ok you have the semi right idea but that’s not really how any of it works and I don’t blame you cause even my biology degree doesn’t go into as much detail if you really want to know you’d have to go to mes school. First of all let’s clear something up which could save your life. If you ever stranded at sea don’t drink sea water for two reasons, salt indeed absorbs water so a very salty water that you drink will dehydrate you but it’s also full of micro organisms that will 100% make you sick causing diarrhea making you dehydrated even faster. Urine is even a better short term. Now drinking and IV is not the same, if you IV straight sea water two things will kill you an infection from then nasty microorganisms that live in there and salt dosage. See your body needs to have a careful balance of ions such as potassium, sodium and others which to spare you the chemistry we will simplify and call them salt (it’s more complex than that but to avoid confusion it’s fine) same way you body needs to be at a certain temperature to function properly, too low or too high not good and the closer to the extremes the more dire. Your colon in the case of an IV has nothing to do here, the point of an IV is to by pass the colon and go straight in your blood hence why if you severely dehydrated you given saline by IV but it’s very carefully dosed otherwise it would kill you. By doing that we can also add vitamins you might need, etc but like with anything too little will do little and too much you’ll OD. The reason why you need it with glucose is because your cells need certain ions to do other jobs, water for example can pass in and out cell membranes passively by osmosis, high concentrations go to low concentration. Blood has a high concentration of water so when a cell needs it because it has a low concentration then osmosis happens and it gets a refill (google osmosis for more detail in that but it’s as simple as that really). That’s called passive transport but ions like sodium can’t do that, they too big to fro through the cell membrane as per design so there are special proteins attached that facilitates the transfer, this is called active transport and it requires a bunch of chemical reactions I won’t get into (either google or enroll in a biology intro class to really understand it cause there’s lots going on) and to do that it needs energy or ATP. To make ATP you need glucose which you get from different sugars but that’s the easiest for your cells to break into ATP. So glucose is not necessary unless you extremely dehydrated but if you need an IV then yeah you need the glucose to. Naturally when you eat you get the glucose so that whole process is balanced. So from that you can understand having way too much water or having way too much of any of the salts can disturb this carefully balanced system and cause problems. Little too much little problems and way too much big problems aka lethal. With most things dosage related it’s about balance, eat too much salt you dehydrate your cells, don’t eat enough and they can’t facilitate nutrients from your blood to the cell. Don’t drink enough water and your blood lacks water and gets too thick, drink way too much water your cells fill up with water and pop. So it’s case by case, if you somehow down 10L of water in one sitting you will die. Biology is similar to chemistry where it’s all about keeping the system balanced to achieve the designed outcome. Hope this helps, there’s a channel called In a Nutshell that covers topics like this with great animation and good info. I love watching it while I’m seshing and they cover a wide variety of topics from the human body to outer space and they provide their bibliography so you can go read their sources. It’s really cool

@Axodus

5 күн бұрын

​They said at the start that the seawater was filtered and sterilized first ​@@dreammaker9642

@LaneVermilion

2 күн бұрын

​@@dreammaker9642hey, this was dope and you went above and beyond. Thanks man

Biblically Accurate Sea Creatures lol

You know what's wild? When I was a young kid we pretty much didn't know crinoids weren't extinct - it's wild to be a kid picking up fossils and then one day just see the living things themselves - I got so excited by the early footage

"Good morning John," says Hank's voice at the start of this video. Was Hank addressing me? Did anyone else get a "good morning?

@elinobenjamin

11 күн бұрын

The original video was written to Hank’s brother John

@RarelyAChump

7 күн бұрын

I choose to believe he was greeting you specifically

@TheDarkSkorpion

5 күн бұрын

I did, but I am also a John. Any Non-Johns out there get a greeting?

Oh, those swimming feather stars are lovely. Mesmerizing to watch.

The Crinoid episode definitely was my favorite of season 0! Loved the additinons you made to it

@xant8344

23 күн бұрын

+

like watching a spider swim the breastroke definitively 'biblically accurate' eldritch creature core

Just by looking at it, it's obvious how it can swim.lots of surface area as resistance, so it works like a paddle.

Iron saline solution is why our blood is what it is.WE live on an iron saline blood cell. Sponges breathe the same way. Breathing the saline solution. That's the first origins of our heart,lungs blood and stomach.

Oooh I did not know the ones with the stalk could drag themselves. Lots of interesting things in here :D

November 24th is International Featherstar Appreciation Day

I'm reminded how invaluable Christopher Scotese's maps etc are.

@Beryllahawk

23 күн бұрын

Same! It makes me so happy that they still get used and are still AS useful as back when I first saw the site. (Which was longer ago than I'm gonna admit today haha)

@nealjroberts4050

23 күн бұрын

@@Beryllahawk Indeed. I used to do some althis stuff and they were amazing in visualising alternative continents.

I know that technically, organisms are just living, breathing hydraulic machines, but these little guys took it literally

Feather stars moving look like ballet dancers to me - beautiful!

"... predation by ancient urchins..." must have been both fun and tricky to say 4:36

ROV SuBastian has live streamed hundreds of crinoids over the years, always a treat to see them swim

@hannahbrown2728

23 күн бұрын

Adorable name for a rov

Booking vacations on the Tethys Sea now.

That is awesome all this time I thought crinoids were all left behind in the Devonian! They are still with us! Now someone needs to discover trilobites still exist somewhere.

@weirdredpanda

23 күн бұрын

It wouldn't surprise me if they do. I think they found brachiopods alive somewhere.

This 🌟 is weird as heck and truly bizarre

Plants uses water. Insects uses a mixture of liquid. It's hemoglobin that gives color in animals, to be more efficient

I knew crinoids were still around, but I didn't know any of the extant species were sealilies

@haseo8244

23 күн бұрын

Both stalked and non stalked crinoids are the solo branch of a line that was very diverse in looks from Ordovician up to Mississippi period.

Oh! This is one of the Season Zero pins that glows in the dark!!!!!!!! I love it.

@Mark-in8ju

5 күн бұрын

She looks like Hannah Pearl Davis. They shall repeal the 19th together.

Predation by ancient urchins. That's an album title.

I saw many feather stars on shore after a storm

This thing moves like a higher dimensional spider and I hate it.

The feather star is one of my fave creatures! I had one in a tank some time ago... Loved watching it swim.

That swimming pattern is hypnotic.

(1) EXTREMELY cool content, some of which I was already aware of (and still find to be fascinating). (2) Thanks for the updates to correct and elucidate.

Featherstars decided to contribute to the slickback dance trend

Biblically accurate angels.

@abyssstrider2547

2 күн бұрын

They usually say don't be afraid when they show up in their true form, so yeah. This explains it quite well tbh.

I am using this in my book. There isn’t anyone who can stop me.

I love this video :D (and thanks for, rather than remaking a favorite, you added the new stuff - great approach I've never seen that!)

it swims in an ocean of its own blood it is metal AF

Honestly the way that sea lilies move is more unsettling to me.

The black one reminded me of a shadow vessel from Babylon 5.

I could see sea urchins as being the reason that feather stars evolved, if the shallow, warm-water environments had previously been occupied by stalked varieties. That would depend on when the sea urchins evolved.

I had no idea the mediterranean sea is so deep. 5110 meters at one point in the hellenic trench.

Saw a swimming feather star on a night dive, I think 7 years ago? Mesmerizingly beautiful 😍

Awesome example of evolutionary predictions

Can I just say that I LOVE your jacket? Seriously, where the hell did you get that?

crazy how this looks like feathers

Came for the Hank. Stayed for the flappy flappy feather swimming 😂🙏

Sea Lilies walked so Feather Stars could swim.

I think i read somewhere that crinoids was the inspiration to the facehugger in the alien movie.

@dreammaker9642

7 күн бұрын

Anything that loves in the abyss is fuel for nightmares 😂 it’s a trend that evolution cares not for your mental health. Don’t even have to go that far, if you want to make a therapist rich Google foal slippers 😂

Samuel Z. Arkoff and American International Pictures really missed out on the ultimate nightmare creature.

Soooooo cool! Also, I'm stoked y'all are bringing this back!

Simply fantastic !

And the big question everyone still has, how to keep feather stars alive and thriving in an captive environment.

I absolutely hate it. They didn't mention if it had defenses or not. It looks very dangerous.

You combine this with a squid or octopus and you have Lovecraft horrors.

Can't get blood infections **taps temple** If you don't have blood

Bonus fact! Crinoids and comatulids (feather stars) not only use sea water as a blood alternative, they also have hydraulic chambers throughout their whole body that allows locomotion. Sea water is also how they move their “muscles.” This goes for all echinoderms.

This is my first time discovering this channel and I’ve been watching sci show for years now

It is still nightmare fuel.

Ok this is weird. I have been subscribed to this channel with the bell on since day 1 of its first launch, this is the only notification I have gotten for this channel ever and I just looked at your library of video's. To say I'm quite miffed is an understatement. I have found everything that Hank works on our with to be informed, informative and just enjoyable to watch. Even if Hank isn't the one giving the presentation. I have used Sci Show and PBS's KZread channels to educate myself and many others over the years. The videos are all a great jump off point to learn more about whatever the topic is that has peaked your interest. Honestly I think it was a PBS program on television (I'm way way older than the internet) that set me on my career path to becoming a Geologist. For me it's been worth the little time and money invested into watching and supporting programs like these because I am able to share the knowledge. And who knows maybe I will share the information in this video or share the video and someone is inspired to become a marine biologist. The crux of what is angering me about not getting notifications is not a KZread algorithm issue but a Canadian government issue. I know that because this is an educational program presented by Americans and not Canadians my government has been blocking the notifications, attempting to force me to watch Canadian made content.

@carlgrimes2512

22 күн бұрын

Well our scientific programs are not known for their accuracy. Particularly since we basically have to give airtime to things that aren't true. Flat Earth theories, ancient aliens, etc.

"Be Not Afraid" thus spoke the angel

When I was a child in the 1990s I saw a show called "Once upon a time... Life" - in the first episode they detail that the ancient sea salt levels were quite similar to modern blood.

so freaky yet so beautiful at the same time!

I have a favorite ocean critter! They're so lovely

Biblically accurate angels do not exist, they cannot harm you. Biblically accurate angel:

@LincolnDWard

11 күн бұрын

fear not

@caseyb1346

6 күн бұрын

b e n o t a f r a i d

Always wanted to learn more about these fringe fellas! Thanks!

That was a very interesting video - thanks! These specific creatures don't get enough attention. On an unrelated note, Sarah's black jacket is also quite unique!

I used to see lots of sea lilies at the beach as a kid. Hard to believe it's been 252 million years already.

Completely off topic but it took me a solid while to notice the gorgeous green highlights and curls, damn.

2:40, this is giving *_-"B̸è̶ ̶n̶ô̵t̴ ̵a̷f̴r̶ã̷ï̶d"-_* energy. Like a sea angel.

3:35 Mom used to say "Exactly the same only different." It's surprising how often that's true.

The thumbnail for this video implies that our beloved host is one of these ancient creatures and, in fact, NOT the one that can swim. Way to knock a creature down.

WOW i never even heard of this thank you for telling about these magnificent creatures!

"Mommy, I think that sea flower just moved." "Honey... I don't think that's a flower..." Seriously though, crinoids are amazing.

No. No no no. You don't get to just casually host this episode rocking one of the best leather jackets I have ever seen and not talk about it. Where did you find that amazing piece of clothing?!?

@SarahSutaMFA

11 күн бұрын

Haha! Thanks! I got it at a shop in Las Vegas (I think it was called "One Monarchy"). I am a little worried if I put a pin in it in just the wrong way I will destroy the mesh, but it does look so dang cool! - Sarah

Sooo they can never bleed out. Just swimmin around in an ocean of their blood. Gotta be part of the reason they've lasted so long

good news, maybe if we melt all the ice on earth we can get these interior seas back, huray, we are on the right track everybody. (i mean it would take at least thousands of years for life to truly settle and rediversify but it will find a way eventually, maybe some humans may be around for it)

I saw these walking on rocks when the tide was out on Broome Western Australia (massive tides there). For years I had no idea what they were.

Who needs aliens when we have most sea life?

Found one of these while fossile hunting. It was pretty cool to learn about.

“Everybody keeps telling me how MY story is supposed to go, NAH, imma do my own thing-“ - Featherstar Morales

i thought it was mimetaster for half a second and i was really excited. i've been trying to figure out how it's pronounced for like two years lol

thanks for the video

This reminds me of the Tumblr post/thread that is just people feeling out over how animals literally went "ight imma make a mini ocean and carry it with me. Imma take my mini ocean onto land." That then devolved into why mammals are the the hardest of hard core with their filtered sea water products

The fact that sea lilies move is mind blowing 🤯

Corals are animals too.