Why Triassic Animals Were Just the Weirdest
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- Опубликовано: 4 июн 2018
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The Triassic was full of creatures that look a lot like other, more modern species, even though they’re not closely related at all. The reason for this has to do with how evolution works and with the timing of the Triassic itself: when life was trapped between two mass extinctions.
Thanks to Ceri Thomas for the Drepanosaurus reconstruction. Check out more of Ceri's paleoart at / alphynix and nixillustration.com
And thanks as always to Nobumichi Tamura for allowing us to use his wonderful paleoart: spinops.blogspot.com/
Finally, thanks to Emilio Rolandia, Matt Celeskey, and Studio 252mya for their excellent images as well.
Produced for PBS Digital Studios.
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References:
Original description of Triopticus with a description of repeated bodyplans and lifestyles of Triassic and later Mesozoic animals www.cell.com/current-biology/a...
Original description of Shringasaurus with discussion of allokotosaur evolution
www.nature.com/articles/s4159...
Original description of Avicranium with a discussion of drepanosaurids
rsos.royalsocietypublishing.or...
An earlier phylogenetic analysis of drepanosaurs with discussion of their likely habits in life
doi.org/10.1017/S147720190400...
A very thorough, but fairly technical discussion of adaptive radiations (including those triggered by extinctions) can be found in chapters 4, 5, and 10 of:
Stanley, SM. 1979. Macroevolution: Pattern and Process. John Hopkins University Press.
ISBN 0-8018-5735-X 
Наука
Paleontologists: Can you at least pretend to be normal?
Triassic: *turns a lizard into a fish*
Like
basically triassic is god's deviantart phase.
@@KoeSeer lol
A lizard into a fish that looks like a mammal fish
@@deadandmoved a crapshoot
animal adaptation be like, "if it looks stupid but it works, it ain't stupid."
Platypuses would be proud
Take us homo sapiens for instance
Seahorses in a nutshell
Hercules Beetles in a nutshell
Humans be like: “if it works very efficiently but doesn’t look familiar to my monkey brain then it must be stupid”
When you run out of mass extinction names:
the great *_dying_*
Die-ontage
I want a mass extinction event to be called "The Killing Spree"
@@mk_rexx our mass extinction can be called that❤️
www.gocomics.com/calvinandhobbes/1992/06/21
@@mk_rexx Killing in the Name of (Global Warming)
Aren't we always trapped between two mass extinctions?
OOF
@@ipotatosenpai7002 and the sad pandas rejoiced for Not-Deepak-Chopra to slap some sense into people 😂
Yeah fr, that's what I was thinking 🤔
Actually we are currently in the middle of a mass extinction even that we ourselves brought upon the planet with over a million species currently classified as endangered or threatened and since there are only 8 million total species worldwide that have actually been discovered that's roughly 1/8 of all life known to science.
I think the idea is that these two were particularly close together, so the process of adaptive radiation was especially dramatic, and most of the resulting lineages short-lived (therefore, "weird")
Poor Pangea...she never got over her breakup 💔😢
👎
This is amazing.
I heard their supposed to get back together. Might take em a few million years tho
Whenever her children get together, it causes all sorts of upheavals though.
No thanks she deserves it she literally killed almost every single living thing well probably it's Siberia one of her children F Them!
"Looked like featherless birds"
BEHOLD A MAN
Lia Laut this comment is just so underrated.
Omfg I love this.
Diogenes would like to have a word with you!
Plato disliked this,
but arent we like hairless mammals? (mean girls karen voice)
PBS EONS: the triassic was the weirdest time period
Cambrian fauna: hold my eyes
Rangeomorph : hold my cells
@@r3zaful
Big Bang: hold my atoms
I am glad i swollowed my coffee before i read that !!! 🤣🤣🤣
@@rowleyj31
Glad to make your day/morning bud
I really want to see real life Opabinia
*Basically the "it's just a phase" era*
Best comment
I am now picturing phytosaurs and prestosuchus listening to MCR. So thank you for that.
Hey Michael,Vsauce here
This comment here..... I love it.
Usually nature is the reason for mass extinctions, today we are.
Ah yes, the Triassic period, also known as the teenage years of life.
Jaylyn Abrams This comment deserves an award
Jaylyn Abrams where the world started experimenting with weird stuff.
Please don't remind me of that time! I hate that time of my life...
@@Grayk-ge5vo That's your opinion
It *was* just a phase!
Extinction events be like "Oh no I misallocated evolution points, let me reset the simulation."
Ah, a fellow tierzoo fan i see
Caleb Tarman ah yes, we have gathered here today to receive information
Yosh!
Extinction event: I gave hairless monkeys too much Intelligence points. That look weird but at least they're going to kill themselves. Can't put another bad record where I killed almost everything. Whew... dumb monkeys lol.
If the Triassic is the "just a phase" era, then the Cambrian must be the "dressed self for the first time" era.
Would that make us the "mid life crisis" or the "move out and get a job" stage ?
Like gumboots, a beanie and a tutu on a toddler.
@@zoeeee2952 That's exactly the imagery I had in mind.
@@jacobhargiss3839 Either way, the rest of the solar system looks pretty interesting, better spread there as well.
@Jacob Hargiss I’d say the “move out and get a job” phase would be when mammals took over the world after the dinosaurs died. The midlife crisis is when humans evolved.
"Another lineage for catching fish"
Shows image of it grabbing an apex predator
I did think that was one strange looking fish.
@@ccvcharger must be one of them landfish
Apex
Who is going to maintain this channel after the next mass extinction? I need updates on when some niches open up.
The Kim Jong-un niche will be first to open up.
I reckon a new breed of thick skinned tall mammals will evolve and create societies, they'll repeat exactly what we're doing and they'll think aliens landed on the moon.
Maybe tierzoo will explain the new meta after the update
Them rats had better evolve typing skills and social media addiction pretty fast.
ask the raccoons.
Length: 10:10
Content: 10/10
Paul Paulson nice
😁
My video says it's 10:09 long... So 10/9?
MIne too. I suppose just round up hehe.
Niels van Asten I got 10:10
"... and within JUST 20 MILLION YEARS..."
Whoa okay, I guess I'm the only one here with a life expectancy of 74 years.
Paul Q Public physicists and geologist have no concept of “time”. I mean, what’s a million years or two among friends?
Geologically speaking, a couple of million years is an eye blink.
You are not the only one.
Geological time doesn't "have time" for any of us👀😂
Pfft, 20 million years? Nothing. It’s not a proper amount of years until you need to express it in terms of 10 to a two or three digit power. Life expectancy of a supermassive blackhole? About 2*10^100 years.
Imagine how many species that planet had since the beginning. It's just amazing.
its estimated 98% of all species that ever lived, are extinct
"That planet" oop extraterrestrial freudian slip. Get him boys!
you have at least one carbon atom in your body that was once inside a specimen of each of those species
@@DrWhom Damn
I believe what some guy actually said was, "Life, uh, finds a way."
That "some guy" was Jeff Goldblum.
@Jayson Klein Pretty sure that’s implied
Jayson Klein I know
Peter Griffin
But joe has a camel as well
The comments section here is abnormally intelligent and positive.
Agreed! More People are Learning That Dinosaurs Weren't The Olny Reptiles During The Mesozoic!
rick and morty
@Association of Free People That and religion ;)
You didn't see my comment lol
geinikan1kan then a random hardcore christian appears...
Ah yes, Triassic Era. A chaotic but wonderful time for public testing server with no restriction on testing multiple builds, allowing many players to experiment to their heart content.
No one:
The Triassic: _I'm not like other girls_
Lol
Why do people use that unfunny no one someone template?
This joke would have been just as funny if you deleted the “No one:” part.
@@tvboxmimic7887 gives your comment zero stars.
I thought it was great, but I’m no expert of the interwebs like that dude is.
Thr Triassic Period: I have, *Naked Reptile Bird's*
Paleogene and eocene:
Using the Triassic Period as a lesson on evolutionary rates and convergent evolution...Masterpiece!
This video really is masterful in how smoothly it ties together so many major principles and illustrating examples.
i know, right, this channel is the evolution of youtube channels
+
Edward Ramirez Convergent evolution doesn't make sense. Neither does macro evolution.
Jarrod Flint hahahaha
The claw on the end of the tail was for getting the last olive out of the jar. Come on people... wise up.
lol
You got it all wrong man, that is clearly a back scratcher.
Woke
Pant the class are used eating you
Some paleontologist hypothesize that it’s main function was actually getting the last bit of TP out of those multi roll dispensers
I waited the whole video for the words "convergent evolution"
It’s not “Life finds a way”. It’s “Life, uh... finds a way”.
And now it goes back to the water chaos theory, we've come full circle D: xD
@@carlhenry6223 maybe JP
Uh, who cares?
Joshua Bateman congrats! As your prize you get to keep your
Virginity!!
Didn’t he also say must go faster.
The storytelling on this channel is amazing. I´ve never considered natural history to be so exciting. Also the videos seem to find the right balance between artwork, real life footage of contemporary wildlife and showing the scientist doing the narration.
Just what you said.🖒
Yes I agree. It is somewhat of a condemnation of our conventional schooling. Mea Culpa as I was once a high school teacher.
"Niches get finches." - Darwin
That's freaking brilliant, I'm stealing that.
LOL
Snitches Get Pinches
Niches become feeshes
Well considering Darwin was English and the English pronunciation of niche doesn't rhymme with finch...
The American pronunciation of niche is the worst butchering of a word I've ever heard.
Does anyone know this lady’s name? She speaks very clearly so it’s easy for non-native English speakers to understand. Would love to watch more of her videos 👍🏻
Not sure but I think she may be Kallie Moore.
She does. Until you get to "niche".
She's Kallie Moore. She's a regular host. All three of the regular hosts are awesome.
if you have trouble understanding videos turn on captions even if only auto generated are available it really helps to learn
@@jennyjen7000 her pronunciation is accepted by the scientific community
I've been watching Eons for a few months now and I really enjoy in, but what I've really come to look forward too is "Steve". So thanks Steve for your consistent support. Now I don't just look forward to a show, but to the end of it and your shout out. Keep it up Eons and "Steve".
Wonder where Steve went.
@@SophiaAstatine probably lost their job due to c0v1d.
The first rule of phytosaurs is that you don't talk about phytosaurs...
Criminally underrated comment
Get out.
What are you doing here ?
Oh hello! Thank you for your orchestration vids, they're very helpful and insightful. Cheers!
True
New hit movie:
Triassic Park
Triassic dino lizard birds!
lol Emilia Clarke did something like that
Someone pointed out that a more apt name for Jurassic Park would be Mostly Cretaceous Park
Mesozoic park? It would be better if it include many dinosaur from different periode so just call it as a whole
I can't even describe how excited I would be for that to come out!!!
"Why Triassic Animals Were Just the Weirdest"
Why, because they had 3 asses?
I laughed way harder than i should have
underrated!
🤣🤣🤣
my 3 assed baboons ... leave em alone.
Bruuuh
My 5yo son LOVES Eons and requests it all the time. We have watched every video, some several times. He gave a wonderful summary of the origin of devil's corkscrews, and mourns the greatest ape. He has learned about the asteroid, dust, volcanic gasses, and climate change, but at his age, general and specific are separate things. So he would love to learn when and why the velociraptor went extinct. We would be thrilled to see this answered, perhaps as an example of paleontologists' criteria and methods for determining extinction.
Yunus Wesley I’m glad your son knows about the world!
Okay then. BTW nobody knows y dinosaurs (raptor is a dinosaur) went extinct. Scientists theorize that a meteor or a super volcano wiped them out. Also I'm ten and in fourth grade and I like dinosaurs too
@@isolofvtion who doesn't like dinosaurs?
@@bapabs ikr lol
Aww that's so cute and awesome ^^ I'm glad he's so curious and that you guys have such a cool way of spending time together. I'm jelly :(
Triassic animals: Humans are so weird.
Triassic Animals: Eww, those pinkies keep their genitals outside their bodies, gross!
al qu
They’d be more confused by a diurnal creature that cant protect itself from sunlight effectively (most animals besides mammals can produce their own compounds to block UV damage)
They’d also find the concept of sweating bizarre, and of ultra social behavior (even bees and ants didn’t really show up until later)
0:38 "...and chameleons don't show up in the fossil record for another 120 million years after these guys."
Well they wouldn't would they.
Hahahahaa. That took me a second...
Nice!
This. This is joke of the year.
I have learned so much more in my old age then I ever did back in school. No matter how messed up the social media part of the internet is, I am so thankful for the educational part. This is education that I could never have afforded in my youth. Thank you so much for these videos!
Please do a video on the divergence of the pronunciation of “niche”
Please don't, I've never cringed so many times during a 10 minute video
Not just me who kept flinching...
Ni-chay
Uhh...she's pronouncing it correctly
Another example of Americans butchering language, almost stopped watching it was so cringeworthy
Please make a video about the development of wings/ the ability to fly :)
peppermintfoxy i concur.
Yes! All of the developments!
Good idea
We're working on it! Well, at least part of it. Stay tuned! (BdeP)
PBS Eons yay!
Triassic was a new meta. All the builds were just being tested
LOL
One thing I have found amazing is that with the exception of the head, tail and possibly forearms, looking at a skeleton of a bipedal dinosaur and a skeleton of a bird, the similarities are uncanny.
I wonder why...
Nothing like laying on your bed and expanding your knowledge while being taught set knowledge by the voice of an eloquent angel. Thanks Eons, “The subscribers will remember this”
Educated maybe. Eloquant no she can't even say NICHE properly. Apart from that I enjoy watching these videos as they do educate and broaden my knowledge
thats pretty creepy ngl
@@j.dmetalhead7517 Both are accepted pronouncations of the word - you'll hear Niche(Neesh) far more in Europe, especially Birtian where it's the common pronouncation. I only ever hear American's use Nich - some canadians.
@@mightybigb00 That saddens me....
@@nataliecastro8586 That's what I thought! Bit pervy...
You know I forgot PBS was a thing. I associated it with Sesame street. This series is great though.
Hahaha
You didn't have to drag PBS like that! LoL 😂
Sesame street is owned by HBO now.
@@BurritoBandito140 sad
@@BurritoBandito140 Wow. Didn't know that..Kinda F'ed up? Lol
Nature and nova are great staples of pbs
What if the Triassic wasn’t weird the paleontologists just put together the wrong bones.👀
Lol
Are u saying experts are stuped
@@jethrojrmari520 *you *stupid
Now we’re just not as smart as we thought
jethro jr mari hahaha please say you did that on purpose
Plus to answer your question
No not stupid but mistakes can happen
And plus nearly all finds are missing major parts/pieces
And therefore the ‘finds’ tend to be interpreted
So you cannot categorically confirm that every example is 100% correct
Plus you are “stuped”
Amazingly intuitive video... I really enjoy this channel as it relates to a basic understanding of evolution! Very helpful and the hostess on this video is quite lovely/has a very pleasing tone of voice! Thank you for your content as always!
Please do a video on the divergence of chordates/vertebrates and arthropods, please! I know it'll be a lot of very primitive organisms, but I've always found it fascinating how they went such radically different ways, and why. :D
Enthused Norseman I second this
Wouldn't that separation have happened before arthropods and chordates even developed their distinct morphologies? As we know today arthropods are more closely related to molluscs such as snails and octopuses, as they are both protostomia, while chordata are deuterostomia. We're looking at some relatively incredibly early divergence here where both new groups of animals probably didn't look anything like animals today and hardly showed any morphologies that characterise chordata/vertebrates and arthropods today.
Hildegunst von Mythenmetz do you have any idea such ancient creatures might look like? I find the initial request something almost impossible. I might speculate such creatures to be softbodied swimming animals. And the last time I checked it's hard for such animals to show up in the fossil record.
Enthused Norseman I agree!
Anomaly Sunday Yes they're only rarely if ever fossilised. There are primitive Deuterostomia that basically look like segmented, very primitive fish without any fins that have a mouth at the front and several gills in a row on each side. There were also possibly sessile Deuterostomia with tentacles. Unfortunately I have forgotten their names. Anyway, those are among the most primitive Deuterostomia we know from the early Cambrian and might have shared similarities to the common ancestor of Protostomia and Deuterostomia. But the split must have occured significantly earlier at some time during the Ediacarian possibly, and it's such a basal difference that the animals from that time didn't look like much more than some very very small larvae. Maybe some kind of segmented worm?
*"WHEN NATURE HITS PUBERTY"*
You are great, guys! Thank you so much for the very informative AND fun videos.
These videos make me want to be a paleontologist.
I hope 'that guy' will say 'life finds a way' tomorrow too!
Maybe for you lucky Brits, anyways. Hope you enjoy it.
Life finds a way
that guy xd
I wish she'd added in the "uh" int the quote: "Life, uh, finds a way."
LEGOSAURUS
That guy was a maths prof at UT Austin. Odd bloke. Dr. Ian Malcolm. Never liked him much. I was auditing his seminar on potential complex plane asymmetry in the Mandelbrot set and got tied of his constant negativity and irony. So, I dropped it. No regrets.
Guy must live a boring life.
What a great explanation of convergent evolution and adaptive radiation! I've always wondered why eras seem to be marked by sudden bursts of speciation originating from a few phenotypes. So glad I stumbled on this channel, looking forward to watching more videos with my daughter!
This was a really nice edition of PBS Eons! Thanks for a great educational experience!
this series is a dream come true.... love it .. keep up the good work!!
Please cover the evolution of blood
Oh man, I've never even thought about this!!! That would be fantastic to learn about...
OMG, yes.
That would be a neat one. Something I bet most never even thought about, I certainly didn't.
Add the evolution of vampires - especially the well dressed ones.
(chanting while lightly hitting the table) BLOOD! BLOOD! BLOOD!
The examples of convergent evolution make wonder if alien life would really look alien?
I believe that life, if found elsewhere, would look almost exactly the same as that on Earth.
Well, if there has aver been human like soecies before us, or if there will ever be some after us, they will most likely act like we doo. But given the different circumstacnes it csnt be said that they would look the same
Depends how similar their home planet is to earth. Also they might not even be carbon based.
The Raff
This. Although even if not carbon based, complex, macroscopic life would still probably abide by similar principles
Triassic animals didn't seem all that weird to me. DNA-related or not, they functioned in their environment.
i wish we could just watch all pbs digital studios in school. i’d never want to leave.
This video left me in awe.
Thank you for your work.
Drapanausaurus looked a lot like a mixture of new world monkeys and reptiles. The tail made me immediately think of a case of convergent evolution to adapt to life in the trees. Small monkeys have tails with the same adaptation
How is there dislikes? Some vids I don't get why anyone would. It's a great educational, interesting presentation for free and it's done very well. I mean if you find it boring just don't watch it.
More than likely the dislike was less about boredom and more about Jesus.
Maybe creationists
Good point.
+Brandon Butterfield, I for one am a religious catholic, but I believe in Darwin's theory of evolution. Just leaving a note for atheists as they usually generalize us religious people as "creationists."
IMGvillaSRC thanks for having some sense. Lol
thanks, I really enjoy your videos and how you guys explain so clearly!
This video is gold, I've learnt a lot
As some guy once said *Life finds a way.*
UUUH.. She forgot the UUUH
@@nedimgery-buyukyuksel513 lol :D
Or some lady once said.
*Cue bad harmonica Jurassic Park theme*
I think it was ioma
milkom
Awesome! Wow, I majored in genetics, but you explaining things like "lowering competition leads to the filling of vacant niches" makes it soooo much more intuitive. You're great!!
Hooray I finally know what adaptive radiation is! I've heard the expression before but it took Eons to explain it. Love this channel.
Saw this as recommended.
Thought it was new.
But will watch again anyway.
Finally, a video about Triassic animals and early Archosaurs! Something is so fascinating about these animals and how they branch out in the earliest known dinosaurs.
You should to a whole video explaining each extinction, ice age, epochs, all that stuff!
Keep it up
"life uh... finds a way"
6:26 they were also the first species to carve their names in trees
The appearance of a new Eons video is always cause for celebration-thoughtful writing, great presentation, consistently fascinating. Thanks!
Yay! its been eons since the last Eons video.
It's been a while since a pun made me both sigh and chuckle a little bit.
Yes, I think last week was the first one the channel missed posting a video.
Great work, informative, intelligent, well presented and accessible Thanks
Wow! She's great! I live in the Hartford Basin, right near the Triassic/Jurassic boundary. This was the Great rift valley of its time.
How have I only discovered this channel now? I've been a subscriber of SciShow and CrashCourse for ages, and I've always had a passion for prehistoric life. Ever since I was a kid, I've been fascinated with dinosaurs and I grew up on Jurassic Park and Walking With Dinosaurs. I'm still very interested in the topic but am kinda out of the loop as for new discoveries and you guys put out such quality content with up-to-date portrayals of dinosaurs and other animals. Love it!
because youtube algorythim sucks.
You raised and shed light on some very interseting facts and phenomena here.
Those Drepanosaurs as so cute.
Great video, I always enjoy PBS Eons videos. Keep up the good work.
Absolutely incredible. Love it!
Thank you for sharing your insights and your positive energy and hope you know how much I appreciate you 🙏❤️
So you're telling me evolution exists? My science teacher has a lot of explaining to do
You are being taught creationism? lol
Oh come on. Even the Roman Catholic Church is more reasonable than that these days.
@@mikshin9825 Catholics believe the Bible is allegorical, and religious evolutionary scientists like Lamarck and Mendel predate Darwin.
That anglo protestants are mentally ill doesn't mean religion itself is the problem. A lot of our current understanding of chemistry and math come from medieval muslim scientists and Asian theology rarely interfered with their academics.
I really love the passion and enthusiasm that presenters on this channel have. They all seem like really lovely people.
Best episode of Eons. Hands down. Soooo interesting.
Great video, both interesting and educational, thanks for uploading
Lots of information, which I did not know. Despite watching many documentaries.
Extremely compact with lots of information very well put together.
Thank you
this was like perfect. writing style, delivery, animation, sound track. i much appreciate the informative nature of this script when compared to the emoji/meme punctuated creations of the other people.
it gave the content the respect it deserved.
The triassic period looks like the beginning of Devilman
"Even after the next mass extinction"
Current. You mean current.
Aren’t WE trapped between two extinctions??
That is technically correct.
Probably, but would it matter?
technically speaking everything that lived after the first extinction event is trapped between two extinctions or a extinction to come.
where in a extinction
I don't think hominids developed as a direct result of a mass extinction (but that would make for a good episode if we did). As for the second extinction, high technology throws a wrench into the works. It gives a species both tools to avoid natural extinction events, and to create extinction events on our own. But ultimately, everything must eventually die... including the universe itself.
i don't get why some people disliked the video. i found it really accurate and also answers the question in the title.
Keep it like that PBS you're doing great!!!!!!
Thanks, I was really eager to know more about the triassic period particularly the about the specific animals inhabiting it. Since so much hullabaloo was made of the the Hollywood blockbuster Movie Jurassic park, and I have read both Jurassic park & Lost world by Dr. Michael Crichton. I certainly was curious about the Triassic period & the animals kind that moved on our earth those days.
This is the best channel i've seen on RUclips!
I don't know if you guys take recommendation but here's my question : What niche did ancient humans fill and do modern humans have their own niche today?
cobalt1137 We created our own niche of intelligent, tool-using hunter-gatherer. In the Holocene, we had a cultural evolutionary breakthrough (civilization, agriculture) that allowed us to have a population explosion.
There was no humanoid niche being filled over the course of the history of life.
Just wanted to add that until 70 thousand years ago. Until then we where unable to tell and believe the fictions (e.g religion, human rights, nationality and limited liability companies) that bind us together. Until then the largest groups we could get up to was about 100-150 people
Main source: sapiens a brief history of humankind
Ancient humans were generally apex predators through the use of tools. Modern humans break a lot of the "rules" but I guess you could say we are still apex predators through the use of tools, the tools are just much more advanced and effective now
Justin Mishlan
Yeah, no we weren't anywhere near the apex preditor until after we tamed fire.
Magnus Peacock Great book! The author does some talks here on you tube I really enjoyed too. Still not read homo deus yet but it's certainly on the list.
Fantastic video. Narrator is top notch. Information is entertaining and informing. Seriously this is why I LOVE this channel.
this makes so much sense, thanks
So when there wil be another mass extinction and human survive, there will be human period where there are:
1. Human fish eater like crocodile
2. Human insect eater
3. Human that eats another human species
4. Human that have wings
5. Human like porpoises
and so on and so on
The fish and the insects will also be human, but yep agreed.
There where more then one line of humanoids. Also we are part of the mammals that took over from the dinosaurs.
To summarise we are to specialized to survive the next extinction.
I love this episode. Convergent evolution is amazing. By far the most fascinating.
Absolutely fascinating presentation! Answered a lot of my questions, and made the order of things make sense. Thank you!
What if the next extinction kills most of the mammals and it’s the insects’ time to flourish. And in the future they will evolve into an intelligent beings.
Loved the clear explanations
Well, dolphins have fins, so do sharks. They are not related though, they were just in similar environments.
Convergent evolution
It took me way to long to realize that she said Drepanosaurus and not Japanosauce...
Anyways, nice video.
Grandkids love this channel. Thank You PBS EONS
Wow, I had never heard of adaptive radiation before. Different anatomies, same evolutionary pressures.
These videos are great - I'd love it if you did one (or a few!) that focused more heavily on plant evolution too!