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

PBS Eons
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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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3 Eki 2022




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Çalma listem
Daha sonra izle
Beto 17
Beto 17 2 aylar önce
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
William Jordan
William Jordan 22 saatler önce
@Lance Wedor Some people need to support a family. They may need to work 8 hours a day whether they enjoy the job or not.
javeria yousafzae
javeria yousafzae 3 gün önce
@Romella Karmey it's true that we can't tell how exactly any animal is feeling or thinking yet alone another human being because we aren't them and can't see and feel what another being does and some species of animals are pretty smart and exhibit some behavior like ours and have shared abilities with us like making tools, recognizing themselves in the mirror, mourning their dead, etc. and I believe if animals are capable of having consciousness like humans do then it's akin to the level of consciousness 3-5 years old have BUT you guys would be disingenuous if you're going to pretend that a bunch of goldfishes have the brains to process complex thoughts and emotions like we generally do.
Demopublic Ball
Demopublic Ball 4 gün önce
@Romella Karmey perhaps he is
DoubleMosasaur 5 gün önce
Yeah and were not even talking about all the other animals other than humans, they lost their habitat because of humans, getting bred by humans and lifelong caged just to be killed in the end for food, humans torturing them in cruel ways for views on a platform, pollution. You dont have to be a vegan to see this or like animals at all to agree on it (if you dont like animals your view on the world and world history is really flawed btw)
Romella Karmey
Romella Karmey 5 gün önce
@javeria yousafzae how do you know? are u a fish?
Rick Rubenstein
Rick Rubenstein 2 aylar önce
I’m afraid I won’t be satisfied until paleontologists find “true” fishopods, animals whose feet are actual fish.
Aquarian Dawn
Aquarian Dawn Aylar önce
Are you saying my feet stink?
Jayde Roberts
Jayde Roberts Aylar önce
Do my dumbass slippers count lol.
Charles Mouse
Charles Mouse Aylar önce
Well we already know about Fishfingers.
ρrαχis 920
ρrαχis 920 Aylar önce
hell nah
Bob Baker
Bob Baker Aylar önce
@Arc no
MEnTyr.Me 2 aylar önce
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.
Dewalf 16 gün önce
@HarshDude126 sure dude
HarshDude126 Aylar önce
You don't understand cause and effect.
Damon Watts
Damon Watts 2 aylar önce
BenMaharaj 2 aylar önce
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.
Enthused Norseman
Enthused Norseman 2 aylar önce
@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).
Lee Leaman
Lee Leaman 2 aylar önce
**Qikiqtania wakei crawling out of the sea** **Sees 2.7m Tiktaalik** ‘Ight imma head out
Demopublic Ball
Demopublic Ball 4 gün önce
Bravo 6 going back
Ashmeed Mohammed
Ashmeed Mohammed 2 aylar önce
or the arachnids
mfaizsyahmi. 2 aylar önce
true story
Sasha 2 aylar önce
*abort* *abort* *abort*
Thea Sinclaire
Thea Sinclaire 2 aylar önce
Darrell Impey
Darrell Impey 2 aylar önce
"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
F-man 32
F-man 32 2 aylar önce
... and now we can see that they were right
Reticulating Splines
Reticulating Splines 2 aylar önce
Instead of vibing in the ocean for eternity we decided to say so long, and thanks for all the fish
Nick Hentschel
Nick Hentschel 2 aylar önce
" . . . 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 . . . "
RED FORD 2 aylar önce
Darrell wins! 42
MossyMozart 2 aylar önce
@Darrell Impay - Have to love Douglas Adams! In another online life, I am known as Golgafrinchan Ark B.
Glenn Haberle
Glenn Haberle 2 aylar önce
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.
SonOfTheDawn515 26 gün önce
Juan D'Marco
Juan D'Marco Aylar önce
Patreeko Time
Patreeko Time 2 aylar önce
@Keith Faulkner there are also very very few pure large carnivores or herbivores, almost everything is an opportunist an some level.
Patreeko Time
Patreeko Time 2 aylar önce
@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?
Keith Faulkner
Keith Faulkner 2 aylar önce
@Juan Joya Borja. there are no carnivorous pure scavengers. You can't make a living that way. Everything kills stuff sometimes.
Drew Camposano
Drew Camposano 2 aylar önce
I love how she said 'who we had to thank .. or blame.. for the transition to land', knowing full well that tiktaalik meme 😅
Happy Poop
Happy Poop Aylar önce
@EmeraldCrusade meme about blaming them cause they evolve to us, then get to work 8 hours deal with depression etc
SuperSavajin Aylar önce
9:46 definitely lol
Julia V. McClelland
Julia V. McClelland 2 aylar önce
@EmeraldCrusade Apparently, there are jokes everywhere about people hating tiktaalik for being responsible for the crappy world we have now.
EmeraldCrusade 2 aylar önce
What meme?
Ítalo Lucena Vaz
Ítalo Lucena Vaz 2 aylar önce
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
AXLENUTS 5 gün önce
This show needs a real narrator
Penny Lane
Penny Lane 2 aylar önce
Well, I've always seen my life as kind of a landfish-out-of-water story.
Andrew Malinowski
Andrew Malinowski Aylar önce
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
Brian Sullivan
Brian Sullivan 2 aylar önce
Land shark
Marcelino Deseo
Marcelino Deseo 2 aylar önce
Dolphins and whales too kinda disagree with that story 😅
Jaydon Booth
Jaydon Booth 2 aylar önce
Wow, I never knew that tiktaalic was so big. Just thought it was like 40-50cm or something like that.
K. Umquat
K. Umquat Aylar önce
@Juan Joya Borja. I used to think Tiktalik was 60-70 cm in length and Ichthyostega was a full meter long
slwrabbits Aylar önce
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.
Juan Joya Borja.
Juan Joya Borja. 2 aylar önce
You’re thinking of Icthyostega
Coffee123!!! 2 aylar önce
Other fishes: how was land? Qikiqtania’s ancestors: 7.8/10 too much land
p.e.d Aylar önce
I understood that reference
Majima Davis
Majima Davis Aylar önce
Chmaxion 2 aylar önce
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
I Collect Stories
I Collect Stories 2 aylar önce
You might as well argue that Q pushed T onto land and took over its niche. Legs were probably tastier than fins.🍗
david maclean
david maclean 2 aylar önce
@Saul Navarro Don't you mean descendents?
Saul Navarro
Saul Navarro 2 aylar önce
He went back because he didn't want his descendants to pay taxes
hana. 2 aylar önce
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
Brandon Fisher
Brandon Fisher 2 aylar önce
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.
TheKlaun9 2 aylar önce
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
Juan Joya Borja.
Juan Joya Borja. 2 aylar önce
@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
TheKlaun9 2 aylar önce
@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
TheKlaun9 2 aylar önce
@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.
TheKlaun9 2 aylar önce
@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
Juan Joya Borja.
Juan Joya Borja. 2 aylar önce
You don’t need this video to figure out that evolution isn’t a linear process. Highschool biology should have taught this to everyone.
SleepySheepy 2 aylar önce
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!
pmparda Aylar önce
@Benoit Avril yeah! The ones that got on land became humans... the ones in the ocean have their home destroyed by humans
Benoit Avril
Benoit Avril 2 aylar önce
Do you know about Ocean pollution and industrial fishing? Not even talking about natural hazards
Eljan Rimsa
Eljan Rimsa 2 aylar önce
Right now it looks like the squids and the jellyfish will inherit the ocean because we are killing too many of our cousins
Malavoy L
Malavoy L 2 aylar önce
Depends on whether they're still swimming, or breaded and deep fried.
JDeO1997 2 aylar önce
_Qukiqtania crawls out of the water and sees land arthropods. Slowly backs up into the water_
Mpumelelo Khumalo
Mpumelelo Khumalo 2 aylar önce
The idea that evolution is just winging its entire job weirdly gives me hope for my future.
Marco Pohl
Marco Pohl Aylar önce
@Incanus Olórin They're ridiculosly adorable, so yes
anony mous
anony mous Aylar önce
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.
Mpumelelo Khumalo
Mpumelelo Khumalo 2 aylar önce
@Juan Joya Borja. I mean it's great that my work ethic is the same as that of nature
I Collect Stories
I Collect Stories 2 aylar önce
@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.
Neal J Roberts
Neal J Roberts 2 aylar önce
@I Collect Stories a lot of managers get annoyed at me advising scrapping unnecessary forms and duplication of work!
Ren Short
Ren Short 2 aylar önce
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???
Toyohime yes Watatsuki
So...almost 3 meters
Eljan Rimsa
Eljan Rimsa 2 aylar önce
You can get a sense of how old it is from the fact that back then people measured in feet.
dentoncrimescene 2 aylar önce
But what size feet?
MossyMozart 2 aylar önce
@Ren Short - Yes, but that's measured in fishy-feet.
HiggsBosonParticle 2 aylar önce
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.
epicgamersaurus 2 aylar önce
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.
slwrabbits 15 gün önce
@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 ...
Hein Zarni Aung
Hein Zarni Aung 15 gün önce
@slwrabbits how long ago would that be?
slwrabbits Aylar önce
I remember one of my biology professors brought it up during a class, not very long after it was discovered. So cool and exciting.
Benoit Avril
Benoit Avril 2 aylar önce
It shows how young you are.
Robert Schuster
Robert Schuster 2 aylar önce
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.
Margin Buu
Margin Buu 2 aylar önce
Weren't there already giant insects inhabiting dry land at the time? I would have noped out too.
Patrick McCurry
Patrick McCurry 2 aylar önce
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.
Tragoudistros.MPH 2 aylar önce
What's disturbing about trying to out-crawl a spider ancestor the size of a small continent?
Tragoudistros.MPH 2 aylar önce
5:29 one of the most misunderstood parts of evolution so enthusiastically explained! 7:40 even more to the point!
Fraan 2 aylar önce
The intelligent one
Demopublic Ball
Demopublic Ball 4 gün önce
@jacob svetich look at dodo birds
Nikhilesh Nerambally
@Entropy They just evolved into other water species.
J-OKfishing Aylar önce
@Nuts Cheese lol XD
J-OKfishing Aylar önce
Ikr XD life on the land sucks, wish we can just go nope, time to return to fish
Nuts Cheese
Nuts Cheese Aylar önce
Nah, because of them I am paying taxes and going to work
WouaQazamBouga 2 aylar önce
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.
Ari-Man Padgongi
Ari-Man Padgongi 2 aylar önce
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 💜💚
Thanks for watching 🔝🔝 And commenting Send a direct message right away You have just won a gift🎁🎁🎁........
Leaf is not a leo
Leaf is not a leo 2 aylar önce
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
Christopher Johnson
Christopher Johnson 2 aylar önce
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.
Auralia aurita
Auralia aurita 2 aylar önce
As land fish aren’t we kinda reverse mermaids
Juan Joya Borja.
Juan Joya Borja. 2 aylar önce
@Ian Krasnow No. Manatees are mermaids in that regard.
Juan Joya Borja.
Juan Joya Borja. 2 aylar önce
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.
Alex 2 aylar önce
@Ian Krasnow manatees arr the true mermaids
Superman With A Gun
Superman With A Gun 2 aylar önce
@Ian Krasnow no
Ian Krasnow
Ian Krasnow 2 aylar önce
Since whales are sea mammals, does that make them mermaids?
Flo Taishou
Flo Taishou 2 aylar önce
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
andyjay729 2 aylar önce
For the second line, you should've said something like, "And that is just the trurth".
rachel frater
rachel frater 2 aylar önce
Couldn't get that song out of my head!
Finn HD
Finn HD 2 aylar önce
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
Kgamer3141 2 aylar önce
Shout-out to progressive metal guitarist Charlie Griffiths and his album Tiktaalika for getting me to read about this guy earlier this year.
Angel Gonterman
Angel Gonterman 2 aylar önce
That fish was like "reject humanity, return to fish"
Kathleen `Woods
Kathleen `Woods 2 aylar önce
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.
Flutterbree 2 aylar önce
Tiktaalik is one of my all-time fave Old Bois, and I love learning more about them
Majima Davis
Majima Davis Aylar önce
your nth grand father😆
hhiippiittyy 2 aylar önce
Tiktaalik is a Inuit word for freshwater fish that live in shallow waters.
Gorabora 2 aylar önce
Ancient whales : "yeah those guys were onto something"
Crow ///
Crow /// 2 aylar önce
I'm reminded of a tiktaalik meme.... "If you see a Horrid Beast evolving, *PUSH IT BACK IN*"
KarlBunker 2 aylar önce
I'm with these guys. I want to evolve back to water-dwelling too. Dry land sucks.
Wilfred Onalik
Wilfred Onalik Aylar önce
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!!
Dino Hall
Dino Hall 2 aylar önce
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.
The Globalist
The Globalist 2 aylar önce
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.
David T
David T 2 aylar önce
Could you imagine seeing Arthropods in the water and being like "Yea, I'll just go back to the water and take my chances!"
David G Austin
David G Austin 2 aylar önce
Really fantastic video! I love learning about these things, plus y’all make it so much fun to watch!
ianlogan07 2 aylar önce
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
sleve mcdichael
sleve mcdichael 2 aylar önce
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!!!
jed stanaland
jed stanaland 2 aylar önce
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.
TaishiEA 2 aylar önce
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.
Dave Rohrich
Dave Rohrich Aylar önce
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
snowballs 2 aylar önce
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!
Charles Mouse
Charles Mouse Aylar önce
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.
PakBall & Sam
PakBall & Sam 2 aylar önce
and they did the right thing at least they don't have to pay bill and go to a job they hate there are so lucky
Kevin Cole
Kevin Cole 2 aylar önce
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.
Vladimir Lagos
Vladimir Lagos 2 aylar önce
Ostriches can probably feel a kinship bond with the way of thinking of these little fellas.
Brian Flynn
Brian Flynn 2 aylar önce
This is very interesting. And can be quite confusing!!! Thank you Michelle for the great explanations!!! Also, Michelle is looking AWESOME!!!!!! Thank you!!!
Ice Wink
Ice Wink 2 aylar önce
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?
CerberaOdollam 2 aylar önce
Hmmm water beetles?
Lekhaka Ananta
Lekhaka Ananta 2 aylar önce
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.
Jim Mauch
Jim Mauch 3 gün önce
So it’s not a forward progression but simply maximizing fitness to adapt to ones chosen niche? A giraffe or an Okapi?
Marky Kid
Marky Kid 2 aylar önce
If watching every paleontology video on TRvid has taught me anything, it's that the direct relative of *anything* was a rare subgroup which probably won't be captured in fossils.
Ozraptor4 2 aylar önce
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.
JMDinOKC 4 gün önce
Evolution has been characterized as "endless tinkering."
Joseph D.
Joseph D. 2 aylar önce
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.
Mason Loeffler
Mason Loeffler 2 aylar önce
Jobe Hoffmeister
Jobe Hoffmeister Aylar önce
Keep up the great work, I love natural history and this show!
Lauren O
Lauren O 2 aylar önce
Not a terrible choice, all things considered 🐟 💨 🌊 🏝
Erich Tomanek
Erich Tomanek 2 aylar önce
"Piscapods" sounds better to me than "Fishapods"! Excellent video.
bobi miiu
bobi miiu 2 aylar önce
Wow, I never knew that tiktaalic was so big. Just thought it was like 40-50cm or something like that.
Randy Bugger
Randy Bugger 18 gün önce
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.
Ryan Mckenna
Ryan Mckenna 2 aylar önce
You guys are great!
Funeral Cake
Funeral Cake 2 aylar önce
Wasn't expecting my existence as a land fish to be validated today but I'm here for it.
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I Collect Stories
I Collect Stories Aylar önce
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.
Just Dave
Just Dave 2 aylar önce
National fossil day? Well I'm glad I'm being appreciated at last.
Vaati 2 aylar önce
“No thanks, I choose life.” - Sid
katie sings
katie sings 4 gün önce
this guy was right. should've stayed in the damn ocean
Dracodracarys 233
Dracodracarys 233 2 aylar önce
given that the ones that DID leave the sea eventually led to fascism i'd say they made the right call
MiQ Bohlin
MiQ Bohlin 2 aylar önce
Thnx for all your work!
Altithorax Perotorum
Altithorax Perotorum 2 aylar önce
Tiktaalik : land looks nice. I'm gonna live here now Qikiqtania: well this sucks
JoRiver11 16 gün önce
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.
Brenda Paduch
Brenda Paduch 2 aylar önce
I HIGHLY recommend “Why Fish Don’t Exist” by Lulu Miller for a captivating deep dive into this topic.
Ted S
Ted S 2 aylar önce
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.
Eternal Valentine Daze
And that, children, is how Qikiqtania discovered *gravity* ....and decided his tiny pecs just couldn't handle it.
Phoebe Murtagh
Phoebe Murtagh 2 aylar önce
"This fish crawls out of the ocean; now I have to pay rent and taxes" Qikiqtania: "not my fault."
Ben Mathews
Ben Mathews 2 aylar önce
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.
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S Aylar önce
Could be that the region these species were evolving in went through some long dryer periods.
Jose 2 aylar önce
That one mermaid documentary be like:
andrew medley
andrew medley 2 aylar önce
I remember that one
Kuitaran( Heatmorus )
Kuitaran( Heatmorus ) 2 aylar önce
This is truly interesting to think that even are out walking fish ancestors didn't want to go on land,lmao
Josep Andreu Hernández
Tiktaalik: Let's check out this land thing Qikoqtania: RETURN TO FISH
The DORUK 2 aylar önce
Scientifically accurate and valid: *Mermaids*
Darth Fetid
Darth Fetid 2 aylar önce
the australian lungfish is rather interesting to look into
chen howard
chen howard Aylar önce
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?
Miezekatze 2 aylar önce
When will the podcast continue? I love it and can't wait!!
W0tch 2 aylar önce
The grand grand children of dolphins will maybe run again on our lands 😄
Giap3 2 aylar önce
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
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IngenieroDavid 2 aylar önce
At least it was polite enough to say “thanks”
mklguy24 2 aylar önce
Whoa, this is like the most OG form of “return to monke”
Kyrion Bookshield
Kyrion Bookshield 2 aylar önce
thank you for scientifically entertaining me, while I drink my breakfast tea.
Mark Dowse
Mark Dowse 2 aylar önce
These FINS are made for walking, and that's just what they'll do! 🎶😁 M 🦘🏏😎
Dragrath1 2 aylar önce
One important detail we tend to forget is that walking fins have been and continue to be used among fish ambush predators in dark or murky habitats. In effect they walk along the floor of the lake river bottom or seafloor in order to sneak up on prey that has adapted to detect the minute vibrations of swimming. This was probably an important intermediary in the evolution of legs because it doesn't require the animal to have the ability to bear its full weight thanks to still living in the water and appears to continue to be and have been a successful enough adaptation those this kind of murky river environment that it has evolved independently many times among different lineages of fish. Most if not all of these early tetrapodomorhs appear to have lived primarily if not entirely within the waters of the Devonian and molecular clock estimates seem to suggest that leaving the water was a late adaptation occurring around the time of the end Devonian extinctions and the onset of the late Paleozoic ice age. Though molecular clock estimates are notoriously hard to calibrate on their own there is fossil evidence to support this perspective and it is importantly the only explanation which can explain the order of physiological adaptations appearing in the fossil record. TDLR Tiktaalik and its relatives rarely if ever walked on land instead they likely show adaptations to predatory niches within the great Devonian river systems that formed around Earth's first true expansive forests. They simply all lack the robust muscle attachments needed to bear weight on land with their limbs which combined with molecular clock estimate suggests where the duplication and development of muscle and muscles attachment associated genes in extant tetrapods only appears to have occurred once in our lineages evolution as part of a polypoidal hybridization event. Note that the molecular clock estimates also coincide with a time of falling sea levels as vast ice sheets began to build across Gondwana setting the Earth into the vast series of glacial and interglacial cycles which drove evolution of the biosphere for the next hundred million years. Given that most other major land to sea transitions among life appear to coincide with major sea level changes this is by far the most likely hypothesis at least in logical arguments. After all you need to crawl to learn to walk to walk to learn to run evolution does not create features de novo it builds on what already exists based on what is more successful and reproducing. Without some ecological factor to drive them out of the water the model where they come out of the water and then back in doesn't hold up under Occam's razor and Bayesian inference(one unlikely event x times another unlikely event y is probably not more likely than x alone. I'll trust the model that actually has growing bodies of evidence to support it instead as limbs are necessary but not sufficient to walking on land and the duplication of muscle and muscles attachment associated genes only appears to have occurred once in our lineages evolution as part of a polypoidal hybridization event in this picture naturally they couldn't walk on land until they were forced to and the evolutionary incentive for that change was associated with dropping sea level changes. Until a model can present a scientifically plausible explanation for how Tiktaalik and its kin could support their weight out of the water I can't even consider the standard explanation scientific.
Raze 2 aylar önce
Man if i would have known life was gonna be like this i would have stayed in the primordial ooze.
Elke S
Elke S Aylar önce
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?
Noah Hogan
Noah Hogan 2 aylar önce
I LOVE fishapods like Tiktaalik & Qikiqtania, and Neil Shubin, who I ACTUALLY heard speak at Ohio University!!! 😍😊
Steve Sloan
Steve Sloan 2 aylar önce
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!
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