Our Ancient Relative That Said 'No Thanks' To Life On Land

  • Am Vor Monat

    PBS EonsPBS Eons

    Around the time that some of our fishapod relatives were crawling out of the water, others were turning around and diving right back in.

    Thanks to Fabrizio De Rossi for the incredible reconstruction of Qikiqtania for this episode! facebook.com/ArtofFabrici...

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Rick Rubenstein
Rick Rubenstein

I’m afraid I won’t be satisfied until paleontologists find “true” fishopods, animals whose feet are actual fish.

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Aquarian Dawn
Aquarian Dawn

Are you saying my feet stink?

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Jayde Roberts
Jayde Roberts

Do my dumbass slippers count lol.

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Charles Mouse
Charles Mouse

Well we already know about Fishfingers.

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ρrαχis 920
ρrαχis 920

hell nah

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Bob Baker
Bob Baker

@Arc no

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Beto 17
Beto 17

Those fish were smart to go back into the water just look at their cousins now having to work 8 hours a day and dealing with things like depression

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Mislav Horvat
Mislav Horvat

If we wanna be really strict with all of this, living a life without those problems (or any at all) is the ultimate meaning of life (if the universe one day ends and everything does)... Enjoy your time here and thats it

Vor 4 Tage
Randy Bugger
Randy Bugger

But if our ancestors had never left the water we never would have discovered all the fun of the cannabis plant!

Vor 9 Tage
MTS Gaming
MTS Gaming

@Alex V I wish I had that kind of excitement in my life

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Austin
Austin

@Lance Wedor We both know thats not how the world works Lance

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Primal Aiden Lu
Primal Aiden Lu

@Lance Wedor everyone works for money because money is the most important thing

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MEnTyr.Me
MEnTyr.Me

From a historian's point of view, this is a really cool illustration of fallacy of sorts that's really easy to fall into: In fields like national history or history of technology (and many others, I'm sure), one is tempted to only look at the path that worked, which makes it feel almost preordained: "This modern nation state was the direct and single logical continuation of this medieval rulership". "This idea/technology is based on this one and that one, and its advent was basically inevitable". No, it wasn't.

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Dewalf
Dewalf

@HarshDude126 sure dude

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HarshDude126
HarshDude126

You don't understand cause and effect.

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Damon Watts
Damon Watts

Preach🙌🏾

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BenMaharaj
BenMaharaj

I agree. In American politics at least some people talk about “the arc of history “ to prop up their viewpoint. Or warn others to not be “on the wrong side of history “. Like there’s a set trajectory to events and they’re in line with it while their opponents aren’t. It doesn’t work that way.

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Enthused Norseman
Enthused Norseman

@Momo Oh yeah, I'm not sure how much you covered this in your field, but a lot of modern historical research is sponsored by national states, and at times weave almost imperceptibly into the larger nationalistic project of legitimizing the nation-state as either always having been there (just subdued or oppressed), or an inevitable development. This is still pretty evident in how history is taught to lay people (myself included, I'm not an historian).

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Darrell Impey
Darrell Impey

"Many were increasingly of the opinion that they’d all made a big mistake in coming down from the trees in the first place. And some said that even the trees had been a bad move, and that no one should ever have left the oceans." Douglas Adams

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F-man 32
F-man 32

... and now we can see that they were right

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Reticulating Splines
Reticulating Splines

Instead of vibing in the ocean for eternity we decided to say so long, and thanks for all the fish

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Nick Hentschel
Nick Hentschel

" . . . and then, one Thursday, nearly two thousand years after one man got nailed to a tree for talking about how great it would be to be nice to people for a change . . . "

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RED FORD
RED FORD

Darrell wins! 42

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MossyMozart
MossyMozart

@Darrell Impay - Have to love Douglas Adams! In another online life, I am known as Golgafrinchan Ark B.

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Glenn Haberle
Glenn Haberle

I always kinda though tiktaalik looked like it could never actually kill anything with it's dopey looking head and jaws. Rather, the prey realize it's just been caught by the gooberiest looking salamander-fish, be like 'awh seriously, how's this happened' and just loose the will to live in a slimy embrace.

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SonOfTheDawn515
SonOfTheDawn515

Lose*

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Juan D'Marco
Juan D'Marco

XD

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Patreeko Time
Patreeko Time

@Keith Faulkner there are also very very few pure large carnivores or herbivores, almost everything is an opportunist an some level.

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Patreeko Time
Patreeko Time

@Juan Joya Borja. an ambush scavenger? What would a scavenger be doing with this body plan, waiting around in shallow water for things to die in front of it?

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Keith Faulkner
Keith Faulkner

@Juan Joya Borja. there are no carnivorous pure scavengers. You can't make a living that way. Everything kills stuff sometimes.

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Jaydon Booth
Jaydon Booth

Wow, I never knew that tiktaalic was so big. Just thought it was like 40-50cm or something like that.

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K. Umquat
K. Umquat

@Juan Joya Borja. I used to think Tiktalik was 60-70 cm in length and Ichthyostega was a full meter long

Vor 26 Tage
slwrabbits
slwrabbits

It's really too bad it's so difficult to establish a sense of scale in paleoart. I actually thought it was smaller yet, like maybe 20-30 cm.

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Juan Joya Borja.
Juan Joya Borja.

You’re thinking of Icthyostega

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Drew Camposano
Drew Camposano

I love how she said 'who we had to thank .. or blame.. for the transition to land', knowing full well that tiktaalik meme 😅

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Happy Poop
Happy Poop

@EmeraldCrusade meme about blaming them cause they evolve to us, then get to work 8 hours deal with depression etc

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SuperSavajin
SuperSavajin

9:46 definitely lol

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Julia V. McClelland
Julia V. McClelland

@EmeraldCrusade Apparently, there are jokes everywhere about people hating tiktaalik for being responsible for the crappy world we have now.

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EmeraldCrusade
EmeraldCrusade

What meme?

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Mpumelelo Khumalo
Mpumelelo Khumalo

The idea that evolution is just winging its entire job weirdly gives me hope for my future.

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Marco Pohl
Marco Pohl

@Incanus Olórin They're ridiculosly adorable, so yes

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anony mous
anony mous

I just checked in with evolution- it said we're only the halfway point in it's plans. We were actually a bit of a setback.

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Mpumelelo Khumalo
Mpumelelo Khumalo

@Juan Joya Borja. I mean it's great that my work ethic is the same as that of nature

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I Collect Stories
I Collect Stories

@Neal J Roberts Less work means fewer subordinates, a smaller empire, less prestige, and lower salary. Why would you do that to someone else? Bureaucracies evolve to service new requirements without completely forgetting the old ones. It's like how your DNA knows to make gills you'll never breathe with. Or, more to the point, a tail. Bureaucracies are useful *because* they resist change. Would you want a completely different person to write out your paycheck every week? The only way to kill a bureaucracy is to kill off the entire business/agency. It's hooligans like you who should be starting new ones. That's the circle of capitalism.

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Neal J Roberts
Neal J Roberts

@I Collect Stories a lot of managers get annoyed at me advising scrapping unnecessary forms and duplication of work!

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Penny Lane
Penny Lane

Well, I've always seen my life as kind of a landfish-out-of-water story.

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Andrew Malinowski
Andrew Malinowski

This and the "Are We all just fish?" video almost make you realize that (to paraphrase Obi-Wan Kenobi) from a certain point of view, we're all fish anyway

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Brian Sullivan
Brian Sullivan

Land shark

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Marcelino Deseo
Marcelino Deseo

Dolphins and whales too kinda disagree with that story 😅

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TheKlaun9
TheKlaun9

Some time ago, I was active in a fiction writing community. It's shocking how many well read individuals thought evolution, technology etc worked like a computer game with hardcoded, linear options to choose from and improve your species. Kind of wish this video came out for referencing before I quit that thing

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Juan Joya Borja.
Juan Joya Borja.

@TheKlaun9 You sure you replied to the right guy? I just said that to figure out that evolution is not a linear process, you just need basic highschool biology education, I never asked for evidence

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TheKlaun9
TheKlaun9

@Andrew Fleenor I wouldn't judge your average Joe. People who want to write and publish books or at the very least have a serious hobby about / involving fictional biology, I will judge

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TheKlaun9
TheKlaun9

@Patreeko Time tbh, I don't get what your comment is in reference to. Being a programmer myself I know what you mean, that sounds kind of irrelevant to my comment here.

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TheKlaun9
TheKlaun9

@Juan Joya Borja. absolutely not, if I cared enough, I could provide you with thousands of pages of evidence. Very few people in general learn anything in school other than reading / writing and basic arithmetic. Can't go with what they teach you there, doesn't work

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Juan Joya Borja.
Juan Joya Borja.

You don’t need this video to figure out that evolution isn’t a linear process. Highschool biology should have taught this to everyone.

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Coffee123!!!
Coffee123!!!

Other fishes: how was land? Qikiqtania’s ancestors: 7.8/10 too much land

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p.e.d
p.e.d

I understood that reference

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Majima Davis
Majima Davis

igntania

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Chmaxion
Chmaxion

Could the reason Qikiqtania turned around been because a new environmental niche opened up? Like legs were developed while they were a lesser predator and constrained to hunting in shallow water, but then the larger predator died out allowing Qikiqtania to take advantage of the more bountiful open waters

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I Collect Stories
I Collect Stories

You might as well argue that Q pushed T onto land and took over its niche. Legs were probably tastier than fins.🍗

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david maclean
david maclean

@Saul Navarro Don't you mean descendents?

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Saul Navarro
Saul Navarro

He went back because he didn't want his descendants to pay taxes

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hana.
hana.

this is probably exactly what happened, or alternatively the niche they were trying to fill was taken by a different species and they could no longer compete with them and had to ‘devolve’ so to speak

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Lee Leaman
Lee Leaman

**Qikiqtania wakei crawling out of the sea** **Sees 2.7m Tiktaalik** ‘Ight imma head out

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Ashmeed Mohammed
Ashmeed Mohammed

or the arachnids

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mfaizsyahmi.
mfaizsyahmi.

true story

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Sasha
Sasha

*abort* *abort* *abort*

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Thea Sinclaire
Thea Sinclaire

🤣

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Sol System
Sol System

@SWIM!DOWN! X I mean, there were other things living on land but, it took 3.5 billion years for life to become multicellular. It doesn't seem unreasonable that there is a development that would be advantageous and possible but, just hasn't happened in the half a billion years multicellular life has.

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Ren Short
Ren Short

I read an entire book about tiktaalik and no one EVER mentioned how big it was. I have been thinking this entire time that this creature was a cute little salamander maybe a foot long maybe two feet long, but almost 9 feet long???

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Toyohime yes Watatsuki
Toyohime yes Watatsuki

So...almost 3 meters

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Eljan Rimsa
Eljan Rimsa

You can get a sense of how old it is from the fact that back then people measured in feet.

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dentoncrimescene
dentoncrimescene

But what size feet?

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MossyMozart
MossyMozart

@Ren Short - Yes, but that's measured in fishy-feet.

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Brandon Fisher
Brandon Fisher

I think with the lungfish being our closest extant (living) non-tetrapod ("fish") relatives they definitely deserve a PBS Eons video of their own! The coelacanths are also fascinating fish and also deserve a PBS Eons video, but they split off from the tetrapods *BEFORE* the lungfish did.

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Ítalo Lucena Vaz
Ítalo Lucena Vaz

I had no idea Tiktaalik was so huge, I always imagined them at the size of a giant salamander at most, but I wasn't expecting an alligator sized fish

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HiggsBosonParticle
HiggsBosonParticle

I think most depictions of Tiktaalik don't do it's size justice. I've always had the impression that it was an arms length long.

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epicgamersaurus
epicgamersaurus

I had no idea Tiktaalik was such a recent discovery. It was something that was in a lot of the books I read as a kid, probably only a few years after it was discovered. Really shows how important it was.

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slwrabbits
slwrabbits

@Hein Zarni Aung probably around 2009? could be pretty far off, I have a terrible sense of time. of course, this is the same class I accidentally slept through ...

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Hein Zarni Aung
Hein Zarni Aung

@slwrabbits how long ago would that be?

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slwrabbits
slwrabbits

I remember one of my biology professors brought it up during a class, not very long after it was discovered. So cool and exciting.

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Benoit Avril
Benoit Avril

It shows how young you are.

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SleepySheepy
SleepySheepy

Can't help feeling like the ones who went back into the water ended up making the smarter decision in the long run - the really, REALLY long run!

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pmparda
pmparda

@Benoit Avril yeah! The ones that got on land became humans... the ones in the ocean have their home destroyed by humans

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Benoit Avril
Benoit Avril

Do you know about Ocean pollution and industrial fishing? Not even talking about natural hazards

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Eljan Rimsa
Eljan Rimsa

Right now it looks like the squids and the jellyfish will inherit the ocean because we are killing too many of our cousins

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Malavoy L
Malavoy L

Depends on whether they're still swimming, or breaded and deep fried.

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Margin Buu
Margin Buu

Weren't there already giant insects inhabiting dry land at the time? I would have noped out too.

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Patrick McCurry
Patrick McCurry

Those came later. Checking around, it doesn't look like there were even any flying insects then. But there were giant so called sea scorpions. So the water wasn't a great place either.

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Tragoudistros.MPH
Tragoudistros.MPH

What's disturbing about trying to out-crawl a spider ancestor the size of a small continent?

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JDeO1997
JDeO1997

_Qukiqtania crawls out of the water and sees land arthropods. Slowly backs up into the water_

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Robert Schuster
Robert Schuster

These fish lived in a tidal river delta. They would get trapped in tide pools that shrank over time before the tide came back, so they had to go over the muddy land to get back into water. The ones who could do this survived.

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Tragoudistros.MPH
Tragoudistros.MPH

5:29 one of the most misunderstood parts of evolution so enthusiastically explained! 7:40 even more to the point!

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Flutterbree
Flutterbree

Tiktaalik is one of my all-time fave Old Bois, and I love learning more about them

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Majima Davis
Majima Davis

your nth grand father😆

Vor 28 Tage
hhiippiittyy
hhiippiittyy

Tiktaalik is a Inuit word for freshwater fish that live in shallow waters.

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Leaf is not a leo
Leaf is not a leo

this video gives me a similar feeling to watching scishow in 2016-17. i really enjoy the energy the hosts bring to the episodes, and i enjoy the work Eons has done to set a specific familiar tone

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Auralia aurita
Auralia aurita

As land fish aren’t we kinda reverse mermaids

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Juan Joya Borja.
Juan Joya Borja.

@Ian Krasnow No. Manatees are mermaids in that regard.

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Juan Joya Borja.
Juan Joya Borja.

No lmao. Don’t try and simplify science with laymen terms like “reverse mermaids.” We’re just fish that adapted to life on land, that’s it.

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Alex
Alex

@Ian Krasnow manatees arr the true mermaids

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Superman With A Gun
Superman With A Gun

@Ian Krasnow no

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Ian Krasnow
Ian Krasnow

Since whales are sea mammals, does that make them mermaids?

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Chamochawinno
Chamochawinno

Loved the presentation, very open minded analysis and truth. Thanks for the land acknowledgement too. I very much appreciated the way evolution was described, as a non-linear process. Decolonising natural history and other domains is important. Wliwni thank you 💜💚

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HitmeonNicegramAlpharad12
HitmeonNicegramAlpharad12

Thanks for watching 🔝🔝 And commenting Send a direct message right away You have just won a gift🎁🎁🎁........

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WouaQazamBouga
WouaQazamBouga

It would be a bit different for the channel, but I'd love to hear more about how the researchers interact with the native communities to get the permission or support to their research in the field, and about search campaigns in general.

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Flo Taishou
Flo Taishou

These fins were made for walkin' And that's just what they did One of these days these fins were gonna walk all over earth

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andyjay729
andyjay729

For the second line, you should've said something like, "And that is just the trurth".

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rachel frater
rachel frater

Couldn't get that song out of my head!

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Christopher Johnson
Christopher Johnson

Awesome. It is true that in school we are usually given that idea of evolutionary progression from one form to the next, but it is really just change based on the environment and competition, isolation, etc. and whatever is currently available.

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Kgamer3141
Kgamer3141

Shout-out to progressive metal guitarist Charlie Griffiths and his album Tiktaalika for getting me to read about this guy earlier this year.

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Wilfred Onalik
Wilfred Onalik

Wow! I'm glad you guys came up north for this exact reseach I didn't know was in my home territory of Nunavut. We have a lot of space here and not many people with the proper research capabilities to trace fossils and artifacts as much around here in the north. It was exciting to watch and learn from you guys! Big thanks PBS Eons!!

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Finn HD
Finn HD

I just watched your inner fish in my anthropology class. It’s a documentary about Neil shubin and his trams expedition in the Arctic and their discovery of tiktaalik

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KarlBunker
KarlBunker

I'm with these guys. I want to evolve back to water-dwelling too. Dry land sucks.

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sleve mcdichael
sleve mcdichael

YEEESSS IM SO HAPPY YOU MADE A VIDEO ON QIKIQTANIA!!!!!!!!! SUCH a fascinating fish but it doesn't seem to see all that well known :( i really hope you make more videos about the fish - tetrapod transition!!!

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Crow ///
Crow ///

I'm reminded of a tiktaalik meme.... "If you see a Horrid Beast evolving, *PUSH IT BACK IN*"

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David G Austin
David G Austin

Really fantastic video! I love learning about these things, plus y’all make it so much fun to watch!

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Kathleen `Woods
Kathleen `Woods

honestly it makes a lot of sense for something bearing that low-belly body plan to have an equally easy time developing in either direction without risking too much, especially that early on.

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The Globalist
The Globalist

This was such an interesting look at the early evolution of tetrapods, and of the complexity and diversity of evolution. I’m sure the thought that 98% of species have gone extinct already is a big underestimate.

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Dino Hall
Dino Hall

This is a great correction of the common misconception that evolution is a linear process while also being a cool paleontological discovery in its own right. Adding Qikiqtania to my personal dictionary.

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Jobe Hoffmeister
Jobe Hoffmeister

Keep up the great work, I love natural history and this show!

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ianlogan07
ianlogan07

I guess around the time tiktaalik was alive it was far too hot and still barren for it and it's descendants to really get on to land yes there were plants at the time but they were very small and not nutrient-dense and not really many meaty arthropods as well

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Gorabora
Gorabora

Ancient whales : "yeah those guys were onto something"

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Fraan
Fraan

The intelligent one

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Nikhilesh Nerambally
Nikhilesh Nerambally

@Entropy They just evolved into other water species.

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J-OKfishing
J-OKfishing

@Nuts Cheese lol XD

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J-OKfishing
J-OKfishing

Ikr XD life on the land sucks, wish we can just go nope, time to return to fish

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Nuts Cheese
Nuts Cheese

Nah, because of them I am paying taxes and going to work

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HiggsBosonParticle
HiggsBosonParticle

@Entropy whales did the same thing and look where we are now

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Ice Wink
Ice Wink

Wow! I have been wondering about what was the first animal to re-evolve back into the water, and y'all answered my question! Next question, have any invertebrates re-evolved back into being aquatic?

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CerberaOdollam
CerberaOdollam

Hmmm water beetles?

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David T
David T

Could you imagine seeing Arthropods in the water and being like "Yea, I'll just go back to the water and take my chances!"

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jed stanaland
jed stanaland

What if the two populations were originally together and were separated by the slow rise of a land barrier between them that forced one population out to sea while the other one was isolated in a lake or pond of sorts and the result is that the group that was in the lake was exposed to slowly reducing water content or size of the lake and slowly over time they eventually become amphibians and progress from there. Just an interesting idea that makes sense to me.

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TaishiEA
TaishiEA

what if it was more of based on mating habits. perhaps the development for land was to lay eggs in safer shallows or in lake inland, however the reverting to fins maybe a group that found waterways to swim upstream like salmon and thus need the fins more than the ability to go on land. depending on how widespread the species was different areas could have work towards where it was safest to lay eggs and the route to get there.

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I Collect Stories
I Collect Stories

We think of these fish as living in shallow, murky waters. As I watched a video on rivers drying up, the pretty, narrow, ray-finned fish seemed to be the ones that were dead, while the ones that could still flop on their ventrals were surviving better. It makes sense that this proto-tetrapod body shape would also do well in seasonal bodies of water, much like lungfish and catfish do today.

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Brian Flynn
Brian Flynn

This is very interesting. And can be quite confusing!!! Thank you Michelle for the great explanations!!! Also, Michelle is looking AWESOME!!!!!! Thank you!!!

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Kevin Cole
Kevin Cole

It's so cool thinking about how branchy evolution can be. Seeing this as yet another example just makes me appreciate how crazy long the Earth is, and the amount of time life has been around, constantly evolving. And creatures like these were all just living their lives, for all this time.

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Angel Gonterman
Angel Gonterman

That fish was like "reject humanity, return to fish"

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Marky Kid
Marky Kid

If watching every paleontology video on YouTube has taught me anything, it's that the direct relative of *anything* was a rare subgroup which probably won't be captured in fossils.

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Ted S
Ted S

We could likely guess this would happen from the numerous terrestrial vertebrates that have returned to the water from their ancestors lived on land. That there's irony too that some like amphibians have to return to the water to reproduce, while others, ex: penguins, sea turtles, seals, sea lions, etc. have to return to the land to reproduce.

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Dave Rohrich
Dave Rohrich

Gotta say, I was pretty critical of Michelle when she first started hosting, but she is knocking it out of the park now. Great video, and keep up the great work

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bobi miiu
bobi miiu

Wow, I never knew that tiktaalic was so big. Just thought it was like 40-50cm or something like that.

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Joseph D.
Joseph D.

Any plans on doing a gecko special? I've been becoming a bit obsessed with them of late and it turns out they are an extremely complex branch on the reptile tree that they kind of have all to themselves.

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Mason Loeffler
Mason Loeffler

No

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JoRiver11
JoRiver11

I guess if it was in a area that was prone to shifting conditions, like droughts and flooding, it would be a huge advantage to be able to move from shrinking pools and not be stuck without water, or find newly flooded areas with lots of resources.

Vor 6 Tage
Charles Mouse
Charles Mouse

A fascinating subject and potentially an extremely complex one: Yes, while the 'fishapods' we know are considered our ancestors (this may be true) it's just as likely they are illustrative cousins only. There are pretty 'advanced' seeming tetrapod tracks older than any 'fishapod' we have found but no seeming tetrapod to match them. So what is going on..? a) Our 'fishapods' are our ancestors but these mysterious tetrapods are an earlier venture on to land that didn't work out for some reason. If so having gotten to an 'advanced' state what finished them off and why? Why not 'us' later on? What changed? Chance..? b) The mysterious tetrapods are our ancestors and the 'fishapods' were a convergent migration on to land that went nowhere. If multiple vertebrate lineages moved on to land that would be a surprise and require something of a rethink. c) -Land animals as we know them radiated from multiple sojourns on to land- Not true, all modern tetrapods are known to be one group. But has that always been true? If not true, when did out 'distant leggy cousins' die out and why? Are we aware of any potential candidates? d) We've got our dates wrong and these mysterious tetrapod tracks aren't that mysterious at all. A few million years younger than the likes of Tiktaalik there would be no mystery. ...all these questions are unanswered besides the subject of early tetrapod evolution being an utterly fascinating one. Whatever your branch of science it's always a journey of discovery and there's no sign of us running out of even fundamental things to discover any time soon. Here's a thought: Apart from five digits not being the norm early on the tetrapod limb as we know it comes in only one version. Either there really has only been one venture on to land by vertebrates (so what's going on?) or the evolutionary pressures that have resulted in 'our' limbs very strongly constrain the design indeed, but not necessarily the number of digits - if so, why? It's certainly not obvious.

Vor Monat
snowballs
snowballs

These fins are made for walking, and that's just what they're gonna do. One of these days these fins are gonna walk all over you!

Vor Monat
Ozraptor4
Ozraptor4

Pretty much like the fish version of tree-kangaroo evolution. Bunch of ground-dwelling wallabies develop climbing adaptations and become tree-kangaroos, but one member (the dingiso of New Guinea) turns around and reverts to a ground-dwelling lifestyle while retaining the anatomy of its arboreal ancestors.

Vor Monat
Vladimir Lagos
Vladimir Lagos

Ostriches can probably feel a kinship bond with the way of thinking of these little fellas.

Vor Monat
John Johansen
John Johansen

Very interesting and extremely well presented! 🥰

Vor Monat
Funeral Cake
Funeral Cake

Wasn't expecting my existence as a land fish to be validated today but I'm here for it.

Vor Monat
HitmeonNicegramAlpharad12
HitmeonNicegramAlpharad12

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Vor Monat
Lauren O
Lauren O

Not a terrible choice, all things considered 🐟 💨 🌊 🏝

Vor Monat
Veggieboy Ultimate
Veggieboy Ultimate

I can’t believe Qikitania was hidden and unknown until 2020! All because Tiktaalik became of the superstars of the paleontology world.

Vor Monat
Ryan Mckenna
Ryan Mckenna

You guys are great!

Vor Monat
Pampa Pumpup
Pampa Pumpup

What are the chances the tetrapodal physiology could have successfully evolved independently multiple times? Like could there be a land vertebrate alive today that we dont share a direct tetrapodal ancestor

Vor 3 Tage
TheCalcarAvis
TheCalcarAvis

these videos about first vertebrates walking on land etc always make me think of mudskippers and what might become of them in a few million years.. our new fish overlords? i know this might be not the place but id love to see some speculative evolution theory on them..

Vor 24 Tage
Rodan 64
Rodan 64

Watch curious archive's videos on the moon of serina it's a really nice speculative biology project. There are mudskippers in it.

Vor 18 Tage
Noah Hogan
Noah Hogan

I LOVE fishapods like Tiktaalik & Qikiqtania, and Neil Shubin, who I ACTUALLY heard speak at Ohio University!!! 😍😊

Vor Monat
Lee Leaman
Lee Leaman

Love the episode! Thanks Eons :)

Vor Monat
Lekhaka Ananta
Lekhaka Ananta

The conceptual mistake of thinking about "progress" actually goes down a pretty deep rabbit hole. It's not just about being wrong regarding a fact, it's that the more fundamental concept of "lineage" is a flawed mental model when put to the test in this context. Lineage is a categorization that we, human observers, make. It is not a fundamental physical unit of nature. Evolution acts upon populations. Due to genetic diversity, no two individuals are identical, and even if they were, they would not occupy the same exact space, so they would have different environments. The misconception that evolution can be a "march of progress" arises when we line up a bunch of fossils and say "hey, these guys are of the same _lineage_ , and when put into a line like this, it certainly looks like there's a pattern!" The mistake comes from not realizing that the pattern arises from the choices the observer made in selecting those specimens in the first place. For example, the paleontologists were looking for that transitional fossil. But if you simply take any one organism, that organism might have many future descendents that the paleontologists never _cared_ enough about to search for the fossils. So we only look at one lineage because of some interesting property, and never get a chance to look at a fair sample of all possible lineages. That's why we now have science educators stressing the importance not falling to this misconception. The misconception is basically circular logic. Things look like there's a pattern, because we observers have a selection bias to search for specimens to demonstrate interesting patterns. It is a lot more likely that many descendents of these very same fishopods reverted to swimming or some other thing other than walking, and we would basically be ignorant of it, because nobody is looking for them and putting them in a line and writing the conclusions into natural history textbooks.

Vor Monat
Michael Baker
Michael Baker

Do we have a reasonable hypothesis for Qikiqtanias evolutionary trajectory. I.e did the environment change so that a shoreline habitat was no longer suitable, was it outcompeted by a sister species we haven’t discovered, is it one side of a cladigenesis event with Tiktalik on the other side?

Vor Monat
Elke S
Elke S

But that’s quite a complex thought process. Fish actually floated deep in thought and began evaluating their future prospects? Seeing that perhaps their life in the ocean was too competitive or detrimental or dangerous and so weighing their options of how things might be if they adapted to land? Cause I didn’t think animals or creatures were capable of that kind of multi layered contemplation. Or was their evolving physicality just forcing them to make the switch, and they merely followed and obliged their bodies morpgong instincts?

Vor Monat
Erich Tomanek
Erich Tomanek

"Piscapods" sounds better to me than "Fishapods"! Excellent video.

Vor Monat
chen howard
chen howard

7:20 can you really assume they "returned to water"? I can think of many ways limbs can be evolved underwater. They can be used to dig, to pry away or untangle themselves from dense vegetation, to quickly push away from a wall or surface, quickly changing directions, and to traverse the seafloor. In a swampy, shallow body of water filled with vegetation limbs are just better. Is there any proof that the Qikiqtania Wakei didn't just move from swampy areas to open waters?

Vor Monat
Randy Bugger
Randy Bugger

So now we get to imagine some kind of evolutionary pressure that would favor adaptations that resulted in a return to fishiness from tetrapodiness. I'm thinking a shallow or fragmented or periodically dry aquatic environment that favored tetrapodiness that then became deeper, or more unified, or wetter that then favored fishiness. At guess.

Vor 9 Tage
Dylan Bartley
Dylan Bartley

fun thought experiment. what if intelligent life developed under water as opposed to on land?

Vor Monat
Jacob Masten
Jacob Masten

@TheKlaun9 they probably would have to be like the tool breeders from all tomorrows using biological things to advance their society.

Vor Monat
Tragoudistros.MPH
Tragoudistros.MPH

@agustin venegas they need limbs to manipulate things. Octopuses are not social so those are other reasons, too. A lot of human technology fits human needs. An interesting thought.

Vor Monat
agustin venegas
agustin venegas

@TheKlaun9 I think I have to agree, I think a subacuatic sapient species would remain roughly equivalent to stone age tech unless naturally occurring nuclear reactors are common enough to be used as sort of an analogue of fire within our world, otherwise, without even the possibility to create pottery this theoretical society would, of course, be fascinating and every bit as complex as our own but be pretty much incapable of creating the same sort of technology we have

Vor Monat
TheKlaun9
TheKlaun9

Lacking the advantages of a freely available, highly reactive gas like oxygen that enables fire and all that we have used it for - sounds like eternal stone age to me. So how does one overcome that?

Vor Monat
Auralia aurita
Auralia aurita

Atlantis baby!! Lol seriously though, thoughts like this are how I end up world building.

Vor Monat
Giap3
Giap3

I had the amazing opportunity to see the original mold of Tiktaalik in person because Ted Daeschler worked in the same museum my now fiancé did. He was so cool

Vor Monat
HitmeonNicegramAlpharad12
HitmeonNicegramAlpharad12

Thanks for watching 🔝🔝 And commenting Send a direct message right away You have just won a gift🎁🎁🎁......

Vor Monat
Zeke420
Zeke420

Best video I've seen👏👏 I been wanting to know where dragon bichir came from for some long this so cool

Vor Monat
Zeke420
Zeke420

@Mason Loeffler a pet fish

Vor Monat
Mason Loeffler
Mason Loeffler

What is dragon bichir

Vor Monat
tsar bamba
tsar bamba

what pressure would keep the bones inside their fins around? I mean, they couldn't exactly use them to grab stuff, or probe into the burrows of prey. they're still just flippers. so why would those beginnings modern tetrapod bones stick around in the first place? if it were just about bearing weight, why would those digits evolve and be passed down?

Vor Monat
Miezekatze
Miezekatze

When will the podcast continue? I love it and can't wait!!

Vor Monat
Ben Mathews
Ben Mathews

Qikiqtania wakei had the right idea. Their lineage only needed to take a couple of steps onto land before realizing that this path would eventually lead to the invention of taxes. I'm proud of them and I envy them.

Vor Monat
HitmeonNicegramAlpharad12
HitmeonNicegramAlpharad12

Thanks for watching 🔝🔝 And commenting Send a direct message right away You have just won a gift🎁🎁🎁!!!

Vor Monat
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

I think the fact that we share fish grandpas and grandmas as ancestors is cool as puck.

Vor 23 Tage
Nieznajomy43
Nieznajomy43

Interesting that all (simplifying) type of animals (birds, mammals, reptiles, dinosaurs, insects) were evolving to return to water lifestyle.

Vor Monat
Darth Fetid
Darth Fetid

the australian lungfish is rather interesting to look into

Vor Monat
MiQ Bohlin
MiQ Bohlin

Thnx for all your work!

Vor Monat
Just Dave
Just Dave

National fossil day? Well I'm glad I'm being appreciated at last.

Vor Monat
Kyrion Bookshield
Kyrion Bookshield

thank you for scientifically entertaining me, while I drink my breakfast tea.

Vor Monat
Never Never
Never Never

I think the whole thing has to do with how low the oxygenation was in the waters these fishopods swam in. In the carboniferous, swamps and peat bogs abounded. Fish developed lungs to survive in acidic, anoxic waters. Their eyes evolved the ability to see through air and migrated to the top of their head, as the water was too murky for them to be useful in the water. Limb like fins helped to support the weight of the fish in shallow water, because they would suffocate without that support (until stronger ribs evolved). The advantage could also have been largely reproductive. Being able to access landlocked pools could provide a safe environment for eggs. Maybe the pelvic fins developed partly to dig in the mud, either creating channels between shallow pools or for burying eggs. But as these fish became more numerous, they spread to different environments, and in places where the water had more oxygen swimming was still a much better strategy for hunting.

Vor Monat
Kuitaran( Heatmorus )
Kuitaran( Heatmorus )

This is truly interesting to think that even are out walking fish ancestors didn't want to go on land,lmao

Vor Monat
Brenda Paduch
Brenda Paduch

I HIGHLY recommend “Why Fish Don’t Exist” by Lulu Miller for a captivating deep dive into this topic.

Vor Monat
Raze
Raze

Man if i would have known life was gonna be like this i would have stayed in the primordial ooze.

Vor Monat
Tim Curtiss
Tim Curtiss

its really interesting though how tiktaalik’s ancestors had evolutionary pressures that drove them to better survive on land while a seemingly identical species experienced the opposite and was “forced” to return to the water. Do we have any idea why these two different groups seemed to have such different experiences in similar situations?

Vor Monat
Tim Curtiss
Tim Curtiss

@Keith yeah but I mean wouldn't that niche already be filled by the decendants of both of them who never left the water? I guess it makes sense if something new evolved that was beneficial to living on land that also helped them hunt for a specific type of prey in the water or something too. Thinking about it now, it makes more sense since evolution is truly just a series of random events that returning to the water would have had similar immidiate rewards to moving onto the land and thus some randomly evolved to return. Of course that is an oversimplification though

Vor Monat
Keith
Keith

Exploiting different niches.

Vor Monat
HitmeonNicegramAlpharad12
HitmeonNicegramAlpharad12

Thanks for watching 🔝🔝 And commenting Send a direct message right away You have just won a gift🎁🎁🎁........

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S
S

Could be that the region these species were evolving in went through some long dryer periods.

Vor Monat
Altithorax Perotorum
Altithorax Perotorum

Tiktaalik : land looks nice. I'm gonna live here now Qikiqtania: well this sucks

Vor Monat
Galaxis
Galaxis

well, didn't all of the sea mammals (whales and such) adapt to the sea from land creatures?

Vor Monat
Robert Celiberti
Robert Celiberti

Maybe conditions bot too severe on land for it to live on land. Drought and cold could go had an severe affect on it.

Vor Monat
Nood Lez
Nood Lez

this is so interesting. are there any fishes that have that kind of limb structures nowadays? I'm not referring to sea mammals, I'm more thinking of some fish that evolved from the ones that didn't quite go on land and kept the weird bone formations in their fins

Vor Monat
Inquisitior Obiwan Sherlock
Inquisitior Obiwan Sherlock

Mudskippers.

Vor Monat
Steve Sloan
Steve Sloan

I didn't even know there was a national fossil day. Looks like I'll have to pull my trillobite fossils out of storage just to celebrate!

Vor Monat

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