Crazy that almost every mammal from whales, to elephants, to humans came from the same few rat-sized species
@Bhoddisatva3 жыл бұрын
Even weirder to think those early mammal ancestors had ancestors who were once of a size to compete with early dinos for all the big ecological niches before gradually losing out.
@EternalEmperorofZakuul3 жыл бұрын
@@Bhoddisatva even wierder when you realize our relatives once dominated the Permian
@nakenmil3 жыл бұрын
@@EternalEmperorofZakuul even weirder when you think about how there are almost twice as many species of birds as there are mammals, meaning that the dinosaurs are still doing incredibly well and are a succesful animal group.
@Burt10383 жыл бұрын
Even even weirder that some humans are still rats.
@GohanLSSJ23 жыл бұрын
Even crazier than said rat-like beings are descended from lizard-like creatures.
@Googledeservestodie3 жыл бұрын
All early mammals look like if you ask a drunk college student to draw a rat from memory
@bladerj3 жыл бұрын
the first mamalians actually looked like lizards with beaks and hoofs, i wonder if their fossil is what originated the story of chimeras and griiffen
@b.f.24613 жыл бұрын
True enough.
@NajwaLaylah3 жыл бұрын
The twist is that those illustrations of what early mammals might have looked like were drawn by... you know.
@Bringon-dw8dx3 жыл бұрын
Look college students studying these academic topics have to make a living too!
@Vistico933 жыл бұрын
I remember reading that artist depictions of the living forms of fossils often draw them very lean since their musculature and body fat only very rarely leaves impressions enough to work with. So it would be nice to see multiple artist renditions of these fossils showing fat and/or fluffy forms alongside the more traditional lean and mean-looking ones we usually get Like, if housecats had gone extinct millions of years ago, would we even know they had triangle ears from their fossils?
@rl92173 жыл бұрын
Dinosaurs: (dies) Mammals: “Feeling cute, might become the dominant species on earth later”
@TragoudistrosMPH3 жыл бұрын
Fluffy baby chicks: 😭
@user-lf2ui7mn1f3 жыл бұрын
@@TragoudistrosMPH yes, dinosaurs' chicks(babies) are also cute 😍
@user-lf2ui7mn1f3 жыл бұрын
Penguin is the cutest dinosaurs living today.
@Minish4rk3603 жыл бұрын
@@user-lf2ui7mn1f ducks would like a word with you
@user-lf2ui7mn1f3 жыл бұрын
@@Minish4rk360 yes, ducks are also cute.
@ColumbiaB3 жыл бұрын
Kallie may set a record here for the amount of complex, difficult information condensed into eight minutes in a forum for popular consumption - while maintaining a reasonable degree of clarity.
@newq3 жыл бұрын
Come for the cool fossil critters, stay for the excellent primer on cladistics. That sorta thing is this channels specialty.
@idjles3 жыл бұрын
Watch anything from Russell Brand
@Whateverhasbeenmynameforyears3 жыл бұрын
That is a very specific record. lol
@doggo70783 жыл бұрын
try out PBS space time and then we can talk
@ColumbiaB3 жыл бұрын
If ST were really that absorbing, why are you •here•?
@Evan-rj9xy3 жыл бұрын
". . . because the dividing line between true mammals and the not-quite-mammals is actually kinda -blurry- _Fuzzy_ " Fixed
@shafqatishan4373 жыл бұрын
How do you do it?
@b.f.24613 жыл бұрын
Touché.
@sriharshacv77603 жыл бұрын
nice one.
@pavel96522 жыл бұрын
Hairy topic ;)
@Carcharodon3 жыл бұрын
Asteroid: **exists** Mammals: *I see this as an absolute win*
@seamlyshenanigans8613 жыл бұрын
🤣
@SinKimishima3 жыл бұрын
Until another asteroid hits earth… then it will be the age of octopi, all hail the eight legged overlord
@Gyomax97443 жыл бұрын
@@SinKimishima Splatoon
@GRIGGINS13 жыл бұрын
Diverts asteroid to land in that section of the ocean. Octopi had their shot in the ancient past. They failed to seize the planet. Now they shall be forever barred from ruling. So says the Rodent Mafia.
@pavel96522 жыл бұрын
Known otherwise as board wipe ;)
@libraryofpangea70183 жыл бұрын
Request: Please cover more Paleomycology (ancient fungi ), it's highly underrepresented & neglected while mycology is going through a renaissance at the moment. Thank you!
@Thessalin3 жыл бұрын
But Blake has to present because ... Ahahaha... Because.... Hahaha... Because... Ahaha haha... HE'S A FUN GUY!!!!!
@libraryofpangea70183 жыл бұрын
@@Thessalin Idk I think Kallie is much more of a fun-gal! 🔬💧
@meneeRubieko3 жыл бұрын
Saw podcast of joe rogen with paul stemets and it blew my mind been interrested as f ever since
@samsmith42423 жыл бұрын
They did a piece on the giant fungi
@libraryofpangea70183 жыл бұрын
@@samsmith4242 Prototaxites yes, but its a very small slice of an emergent field. For instance, there is evidence from duckbill corperlites that they would eat fungally decomposing dead wood & the associated organisms. www.nature.com/articles/s41598-017-11538-w ( The papers focus is on crustacean consumption but relevant evidence for what im talking about is described in the paper) white rot fungus can do what few other microbes can- decompose lignan. Delignifed wood was more readily available for disgestion & fungal sugers also helps the active immune system response as it does in many animals today. In fact, until fungi evolved the ability to delignify wood, most dead wood would compress & is responsible for the large coal deposits of the carboniferous period. ( White rot is also why those deposits won't replenish now that wood is more readily decomposed ) www.nsf.gov/news/news_summ.jsp?cntn_id=124570 Since animals like gastropods, myripods, isopods and even some crustaceans are attracted to fungal activity this provided those dinosaurs the operunity to eat these animals & gain the micronutrients they needed to produce eggs & thus reproduce. Unfortunately Paleomycology is highly under represented, it's the field im studying- because fungi are major context providers when trying to gain a wholism in perspective when we try to understand ecosystems. Both ancient & today. Getting more people into studying ancient fungi will help us learn more about dinosaurs. And on a selfish note it would be nice not to be the only one in student & professionals groups proactively talking about fungi in this context.
@aaronareese19973 жыл бұрын
Non-avian Dinosaurs: *die off* Mammals: “It’s free real estate!”
@dsp63733 жыл бұрын
Dinosaurs didn’t die off. They flew off. They’re in the air now. Birds.
@aaronareese19973 жыл бұрын
@@dsp6373 You are right. It should be non-avian dinosaurs.
@Joanneehlers3 жыл бұрын
Allosaurus had never seen such bullshis No hate btw
@OverTheVoids3 жыл бұрын
Modern human mammals: "Time to pay dem property taxes for my real estate. Stupid government takin' all my hard earned money."
@user-lf2ui7mn1f3 жыл бұрын
Dinosaurs are still living today.
@Random_Nobody_Official3 жыл бұрын
watching this felt like one minute, rather than the real eight minutes.
@sriharshacv77603 жыл бұрын
Probably paleo biology is your natural thing!
@Random_Nobody_Official3 жыл бұрын
@@sriharshacv7760maybe...
@ValVonRhine3 жыл бұрын
I still expect "...and Steve!" at the end. 😔
@princesseville68893 жыл бұрын
I for real hope Steve is okay, kinda ridiculous, I never even saw him, but I cant help it..
@sjonnieplayfull58592 жыл бұрын
We all do
@LuisSierra422 жыл бұрын
Maybe he just got poor cause of losing his job because Covid
@Philoreason3 жыл бұрын
you're saying the bone inside my ear were actually jaw bones a long time ago!?? wow
@swimdownx63653 жыл бұрын
Is that the difference between mammal like reptiles and monotremes
@sagaramskp3 жыл бұрын
Yes. And inner ear and middle ear embryological development is totally independent of each other. It's like the parts of a machine assembled together later. I'm an ENT resident. I know. So a congenital abnormalities of inner ear can occur with totally normal middle ear and vice versa
@aryyancarman7053 жыл бұрын
@@sagaramskp wow
@search8953 жыл бұрын
It's very interesting because i think all vertebrates with an ear or a voice rely on bone resonance to some extent apart from the ear bones. You can actually buy headphones you put in your head and not your ears today which send the music vibrations through your bones to your hearing system. So it probably started from that principle.
@Zooollieg2 жыл бұрын
@@swimdownx6365 they are not mammal like reptiles they are non-mammalian synapsids
@byrdman98333 жыл бұрын
Could you guys do a video on the evolution of color vision? And also explore why mammal's color vision in particular is so underdeveloped for the most part compared to other amniotes.
@ef18762 жыл бұрын
It’s not the same as a video, but for mammals at least it’s because our common ancestors were nocturnal so our eyes have retained traits from then (like larger corneas) and limited colour vision is one of them
@minecraftstation64223 жыл бұрын
Everyone hating first amphibian for being the reason of our existence while ignoring this....rip
@Yes-gu2wn3 жыл бұрын
69th... nice...
@sydposting3 жыл бұрын
Last time I was this early, cyanobacteria had just learned how to photosynthesize.
@minecraftstation64223 жыл бұрын
Lol time to get pinned
@sythrus3 жыл бұрын
@@minecraftstation6422 they would deserve it lol
@commando232r3 жыл бұрын
Last time I was earth was still forming!
@sion83 жыл бұрын
Learned? That wasn't learned.
@svchineeljunk-riggedschoon40383 жыл бұрын
And killed most life with oxygen poisoning (:
@prasanth26013 жыл бұрын
The fact that we can able to uncover the history of earth and pre historic animals with the help of a bunch of rocks and fossils is mind blowing.
@Jake-pn7wr3 жыл бұрын
I find so much peace and solace in this channel. Such a nice break from the headlines crowding today's news.
@Silae.28 күн бұрын
How you doing
@bloodandempire3 жыл бұрын
This is my favorite show of all time 🥰
@dballs523 жыл бұрын
I thoroughly enjoy it as well.
@funnygrunt_o73 жыл бұрын
EONS IS THE GOAT only thing that would make it better is more hank green hosted episodes he’s been my fav for years 👀
@isaisvargas3 жыл бұрын
Agreed.
@gedepradivayogakrisnanda2653 жыл бұрын
@@funnygrunt_o7 same, I really enjoy Hank's presentation
@EebstertheGreat3 жыл бұрын
Random question about crown groups: if the tuatara goes extinct, will crown lepidosaurs become synonymous with squamates? After all, all extant lepidosaurs will then be lizards and snakes. That is, since crown (and stem) groups are defined by living representatives, do their definitions naturally change over time, as species go extinct? Or once defined, is a crown group fixed?
@curtiswfranks3 жыл бұрын
There are alternative definitions which do not require any members to be extant, but they are also somewhat different or vaguer as far as I know. Personally, I think that it is a poor definitional choice to require the defining members to be extant, for the reason which you indicate. It a crown clade should be defined as follows: Let S be a set of individual organisms. Let α be the MRCA of all members of S simultaneously. The crown clade of S is the set of all individual organisms which are or are descendants of α (or, more broadly, the species to which α belonged). In this way, crown clades monotonically nondecrease as sets, wrt time, where dead former members remain members.
@no_bitches4203 жыл бұрын
"it also includes all extinct descendants of that common ancestor"
@thomasrichardholtz90313 жыл бұрын
No. Because when we fixed the name we actually had living tuataras. If (as is possible) in the future the tuataras became extinct, we would still refer back to the situation in the 20th and early 21st Century when the crown definition was proposed.
@mathiaspint68083 жыл бұрын
@@no_bitches420 the point was that that common ancestor would change if the most distantly related extant species (in this case tuataras) went extinct (because tuataras are the only extant lepidosaurs that aren't squamates).
@EebstertheGreat3 жыл бұрын
@@curtiswfranks Yeah, this seems to be the best way to go. For instance, we could define crown lepidosaurs as the most recent common ancestor of the tuatara and the green iguana and all its descendants (equivalently, the smallest clade containing the tuatara and green iguana). That way, it doesn't matter if the tuatara or green iguana still exists.
@Cash5YR3 жыл бұрын
I miss Steve.
@Drakijy3 жыл бұрын
Kallie was always so enthusiastic when saying "and STEVE!" Wonder what ol' dude is up to.
@lewisirwin53633 жыл бұрын
@@Drakijy Eontologiform stuff, I guess.
@LivingParadox873 жыл бұрын
Mah boi Steve!
@eve59093 жыл бұрын
What happened?
@zachg.42513 жыл бұрын
Steve. Gone but not forgotten.
@jakobraahauge72993 жыл бұрын
And hosted by everybody's favourite fossil librarian 😄 thanks! Hope all of you at PBS Eons will have a splendid summer! Loads of love from Denmark ❤️🤗
@thangri-la3 жыл бұрын
Librarian?
@jakobraahauge72993 жыл бұрын
@@thangri-la On insta she's The Fossil Librarian - really cute wall she has there!
@iansilva51012 жыл бұрын
This is by far my favorite channel of all time, I have been looking for something like this for a while, a channel that could provide me relatively complex scientific information and facts in a clear, concise and well spoken way and this is EXACTLY everything I was hoping for to find. Thank you for your amazing work and efforts to bring us these awesomely interesting paleontology facts PBS Eons!!
@ItsASleepySheepy3 жыл бұрын
If the current group of Eontologists are the crown group, does that mean Steve is an extinct ancestor?
@napatora3 жыл бұрын
pouring one out for steve
@amandawilcox96383 жыл бұрын
Maybe just granpaw.
@rossplendent3 жыл бұрын
Wow. I had no idea that the middle ear bones evolved by detaching from the jaw! I can see how that developmental shift would have been increasingly helpful with each subsequent mutation.
@a-10warthog723 жыл бұрын
I've been watching these videos for the past few days. You helped me in these crazy times by giving me a piece of my childhood in the form of knowledge about paleontology. As an overseas fan, I'd like to ask of you to do a video about the raptor vs protoceratops duel found in the Gobi Desert. It's has always been my favorite fossil ever, tied with the nodosaur found in Canada in 2011.
@carolinacoreas77163 жыл бұрын
This is so interesting, it helped me connect a lot of concepts I had learned in my Mammalogy course this past spring.
@Xnaut3143 жыл бұрын
Always love hearing about ancient synapsids and the evolution that eventually gave rise to the world as we know it. A good future video to follow up this subject would be to cover the mammaliaforms that existed alongside the dinosaurs like Castoracauda and Repanomamus that broke the stereotype that mammals only lived defensively in the shadows of dinosaurs, as well as the few extant mammals that survived the K-PG Extinction that might not be crown mammals and died off in the Cenozoic like the St. Bathans Mammal. Obscure mammals need more screentime and you all are the best at doing that!
@mharder52623 жыл бұрын
Happy to see videos here again. Like listening to this channel at work.
@shrimpisdelicious3 жыл бұрын
Mammaliaforms: “May I have extra bones in my jaw?” Evolution: “For chewing your food?” Mammaliaforms: “Yeeeeeeesssss…” (Actually repurposes them for better hearing LIKE A BOSS) *MAMMAL TIME!!!*
@PakistaniGoatMilker943 жыл бұрын
Lol
@redcoolhax3 жыл бұрын
I've been interested in mammaliaformes for a while now, and I'm glad you guys did a video on it!
@HienNguyenHMN3 жыл бұрын
Other mammalian traits that don't fossilize easily: having a 4-chambered heart, breathing using a diaphragm
@Dragrath13 жыл бұрын
true the ancestor of mammals going back to the Permian likely had 4 chambered hearts though the 4 chambered heart also evolved independently within the stem archosaurs likely for the same reason of partial to complete internal body temperature regulation. Fun fact Crocodilians when developing insider their eggs actually first form a 4 chambered heart before a valve secondarily seals off the 4th chamber. As for breathing it would be interesting to look at how that developed in different lineages as it looks to be a multistep characteristic with no surviving intermediary forms
@clovebeans7132 жыл бұрын
Also 4-Chambered heart evolved independently in birds/dinosaurs and crocodiles so technically its not a characteristic/defining feature of mammals like milk/sweat, middle ears, Haversian bone canals, fur.
@HienNguyenHMN2 жыл бұрын
@@clovebeans713 Evolving independently means they're not homologous features. They can be used as defining characteristics.
@HeyHeyHarmonicaLuke3 жыл бұрын
4:10 "Morganucodon's jaw represents what's sometimes called *a transitional mammalian middle ear."* -- Good one! It would help in the fight against evolution denial if you would give fossil examples like this more often, explicitly using the word transitional. There's still a movement of people who claim none exist.
@dynamosaurusimperious27183 жыл бұрын
Well this is why I love learning more about Prehistory from this amazing channel,cause it's *FUN*
@rodchallis80313 жыл бұрын
"We are such stuff As monotremes are made on; and our little life Is rounded with a sheep."-- Willy Shakesdarwin.
@vaimantobe30343 жыл бұрын
So this is what it feels like to have a stroke
@christianniebuhr37283 жыл бұрын
Hello PBS Eons, ive been bingewatching your videos lately and would really like to know more about the arthropods that walked the earth before anyone else. How did they evolve? Where did they come from? I have so many questions :D Pls make a video on that. Btw love your stuff
@brynadoodle3 жыл бұрын
Thanks for always making wonderful videos that make my day a lot better
@roberthfagundes40133 жыл бұрын
This was a increadible well structured video. Extremely didatic. Thank you
@mrkommentator59063 жыл бұрын
I would be very interested in the evolution of lactation. Like how did this crazy behavior and body features come to be
@JohnnyArtPavlou2 жыл бұрын
That’s what I came here for. So let’s say… No problem no breasts are specialized sweat glands. And you got a little baby and it’s looking for some kind of fluid or water or nutrition. OK so you let’s say you get some salt from a sweat gland. And then somehow that goes on for a while until there’s another mutation where more nutrients are put into the sweat glands. By accidental genetic mutation. And the offspring of those creatures thrive and outlive the other ones that were just sucking on sweat. I mean I’m just a normal person and I’m trying to play my limited brain power to the question at hand. There just seems to be certain mechanisms or structures in living beings whose evolution is hard to understand as a step-by-step process. But here we are and I guess I believe in science.
@KRAPYBARA84 Жыл бұрын
I love this channel so much. I wish I could study in this field as a profession. Even if it's just to read up on the history of these mammals. Also, as a huge rat fan, I love that our earliest mammal cousin buddy dudes looked so RATtical
@filippozauc3 жыл бұрын
Julio arts are amazing! Like every of yours episodes. I love to watch them!
@drsetherz3 жыл бұрын
This might be the best episode of Eons I’ve ever seen. Well done!
@andrewscoppetta49443 жыл бұрын
Kallie, your hair looks fabulous!! Way to flaunt that mammalian DNA 🧬
@skink_wrangler693 жыл бұрын
Why did we looks so cute, why can’t we still be that cute
@commando232r3 жыл бұрын
Uh well if we did then mammals would die out very quickly due to niches
@ecurewitz3 жыл бұрын
Speak for yourself
@Random_Nobody_Official3 жыл бұрын
your a dino, your dead.
@eviebr833 жыл бұрын
Do you really want to have fur?😆
@VinzRex3 жыл бұрын
I think you still are pretty cute.
@jewdd19893 жыл бұрын
I always love the content you guys put forth and appreciate that we have these resources now! For ie I remember being told by my history nerd Dad that the chalk pyramids in sw KS were from an ancient interior sea but it’s hard to believe till you see something visually demonstrating what that looked like
@jeremyahagan3 жыл бұрын
Really interesting story. As Eons gets deeper into their subject matter their videos just get better.
@brianmessemer29733 жыл бұрын
Between Eons and Space Time, I love getting a bit smarter on Tuesdays 🔥
@thecrimsoncreep66653 жыл бұрын
It's Wednesday
@toniatchison36783 жыл бұрын
@@thecrimsoncreep6665 😂
@crunchylettuce3 жыл бұрын
@@thecrimsoncreep6665 ✨timezones✨
@eviebr833 жыл бұрын
I love space time... But I usually leave feeling dumb. 😅
@brianmessemer29733 жыл бұрын
@@thecrimsoncreep6665 oh snap yeah it is 🤯
@patricknelson3 жыл бұрын
Monotremes (platypus and echidna) are so interesting. Would love to see a video on that topic!
@bruceherrera9773 жыл бұрын
Glad to see you!! Missed you bunches
@Emma-iv2vx3 жыл бұрын
Amazing channel to learn from. I'm currently working out the geography of my local area because of this channel.
@Bmoney9023 жыл бұрын
I'm obsessed with that thing at 3:01, like it has seriously activated something in my primal brain. It's going to make it's way into my nightmares for sure because I'm watching this in bed.
@johnythefox1003 жыл бұрын
It looks like a type of Gorgonopsid
@Bmoney9023 жыл бұрын
@@johnythefox100 yes you're right! I googled it and found this image. Thank you! Now I have a name for my new favourite extinct nightmare animal. It looks like a dinosaur and a big cat got it on. Amazing
@Zimisce853 жыл бұрын
They should definitely use it in a movie about a "Triassic Park"
@1cruzbat13 жыл бұрын
Very impressive looking animal! Love to think of that as one of my ancestors!
@Zimisce853 жыл бұрын
@@1cruzbat1 more like the worst nightmare of our ancenstors ;)
@rosetownstumpcity3 жыл бұрын
intersting video, as usual. also i really like this presenter, her voice is great :-)
@search8953 жыл бұрын
Fascinating video as always.
@avermaak123 жыл бұрын
Love this show!!! Kallie is so enthusiastic, its awesome
@jessiec6683 жыл бұрын
What I took away from the opening of this video is that like so many other things in biology, mammalian-ness is a continuum.
@JMObyx3 жыл бұрын
Now follow the story of grass!
@fernandoavila39293 жыл бұрын
I believe it was briefly touched in North-American horses or something like that.
@ceulgai28173 жыл бұрын
Yes, please!
@MammaApa3 жыл бұрын
Which... kind of grass are we talking here...?
@JMObyx3 жыл бұрын
@@MammaApa Don't you watch this channel? The Evolution of ALL grass!
@MseeBMe3 жыл бұрын
One of my favourite show in any format.
@Mandelbrotmat3 жыл бұрын
Always fun to watch these.
@emm60643 жыл бұрын
That leopard-spotted gorgonopsid (?maybe?) really caught my eye! I expect speculative coloration in dinosaurs, but you hardly ever see it in other ancient groups.
@Cec9e133 жыл бұрын
That thing was so goofy I screamed. That was hilarious. Would totally take that home from the animal shelter.
@punditgi3 жыл бұрын
Captivating info from a mesmerizing presenter. Damn! 🥳
@derweschi29793 жыл бұрын
Nice Video, as always.
@ramomirimo30903 жыл бұрын
Fascinating information and Kallie you're a star!
@adrianortega14313 жыл бұрын
Asteroid: (Hits the Earth) Mammals: The age of dinosaurs is over. The time of the mammal has come.
@GarlicReturns3 жыл бұрын
Synapsids : time for revenge
@KimiHayashi3 жыл бұрын
MY BROTHERS, WE HAVE WON THE WAR
@naamadossantossilva47363 жыл бұрын
You should do a video about the power of the mammalian jaws.
@RARDingo2 жыл бұрын
Great info, thanks very much! I would be interested to find out the differences in developmental progress between monotremes, marsupials, mammals & live-birthing reptiles, amphibians & dinosaurs (if there were such things). Thank you for improving your mic technique & pitching your voice lower. It makes you a lot more pleasant to listen to than in earlier, less controlled videos.
@thegoblin93873 жыл бұрын
Yes. More PBS eons. This pleases me.
@zo.yeahhh3 жыл бұрын
My interest in evolution made me start enjoying anatomy again.
@thatonedummkopf2163 жыл бұрын
Can y’all make another video on spinosaurus or the existence of troodon?
@ozanyoung29093 жыл бұрын
New Eons! Hooray!
@totalfreedom453 жыл бұрын
Wow! Nothing beats the greatest brainchild of the human brain-the scientific method, whose solid yet pliable backbone is the fusing of constructive criticism, rigorous skepticism, a vivid imagination, and above all the consuming curiosity of a child. 💕 ☮ 🌎 🌌
@azrielmoha68773 жыл бұрын
Oh i thought you're being anti-science at first
@kwakas4ever3 жыл бұрын
Love Kallie Moore's presentations - she makes learning about some dry subjects fun!
@daleowens76952 жыл бұрын
dry?
@EdaugEthanbYT3 жыл бұрын
Natural history is really fascinating
@swimdownx63653 жыл бұрын
What's the difference tween monotremes and mammal like reptiles 0
@EdaugEthanbYT3 жыл бұрын
@@swimdownx6365 Monotremes aren’t reptiles. That may not be the answer you’re after but it works
@higheyrie61763 жыл бұрын
I really enjoy how Eons do their intros.
@katiebug2173 жыл бұрын
Kallie im so glad youre on this show!!
@Kholdaimon3 жыл бұрын
I still miss Steve... :-(
@davidnitto90082 жыл бұрын
New to this channel and love it but not sure who Steve is they keep referring to?
@Temtatork3 жыл бұрын
"And a few lingering mamaliaforms" it would be interesting to see a video about how those mamaliaforms that survived the kpg extintion survived during the cenozoic but didnt make it to the modern day (sorry for bad english)
@Dragrath13 жыл бұрын
Interestingly there has been some recent work suggesting the extinction of other mammaliaforms probably was important for enabling placental mammals to take over. The role of competition was probably in part driven by the many small to medium sized terrestrial crocodylomorphs based on the overlap of similarly adapted dentition (at least among herbivorous members of these groups)
@azrielmoha68773 жыл бұрын
Multituberculata are one of the mammaliaforms that survived the K-Pg extinction and they actually thrived during the early parts of Cenozoic, mostly as rodent-like generalists. Eventually because of climate change and competition with true rodents, they're driven to extinction.
@Nikita354853 жыл бұрын
Thanks for making such understandible videos for non-native english speakers like me. Because while I can't to read a book in english of paleontology but I able to get new your video! By the way I can to touch at least some points of paleontology. Another one: great thanks.
@smallgalaxy75093 жыл бұрын
Awesome video!
@philochristos3 жыл бұрын
I sure am glad the mammals made it.
@louislopez553 жыл бұрын
Well, if they didn’t the earth would still be an unpolluted paradise, but who would be here to see it? Nobody I know!
@b1-battledroid6693 жыл бұрын
Can you do a video on the Argentavis?
@cf4533 жыл бұрын
Really fantastic presentation. I had no idea that's how the middle ear evolved.
@85jacob852 жыл бұрын
Your hair looks nice, love the vids!
@Orion2253 жыл бұрын
I recommend anyone who's interested on this topic to read History of life in 25 fossils.
@Torbeth3 жыл бұрын
That is the cutest looking rodent silhouette ever, at the start. You need him on a tee shirt! :-)
@galvaton100003 жыл бұрын
Lol it can be like "Who's that mammaliaform?" Then the silhouette.
@jrdnruiz23 жыл бұрын
This show is awesome. And I love the narrators
@sparkyfromel3 жыл бұрын
Love your new look , fit good with your persona .
@daniell14832 жыл бұрын
I was blown away the first time I heard about Gorgonopsids, a group of early proto-mammals that predated dinosaurs. It is interesting to think that the legendary age of dinosaurs may not have occurred at all if some of our early ancestors had done just a little bit better in the evolutionary arms race. Though that far back in time, the very words we use to define animal traits today are not always accurate. Like how dinosaurs were a form of endothermic reptile, despite all modern reptiles being ectothermic. Then of course birds are technically reptiles as they are dinosaurs as well, but so far removed from classic reptiles like lizards that these clearly defined terms just start to fall apart. And that of course says nothing for the animal groups that predated even dinosaurs like archosaurs and temnospondyls.
@sorrenblitz8052 жыл бұрын
Well in Gorgonopsids case the Great Dying was a little tougher than most species on earth could handle.
@daniell14832 жыл бұрын
@@sorrenblitz805 Yeah exactly my point. I grew up being taught intelligent design so even now that I know better, I have this tendency of thinking of deep time as a fictional scenario instead of a historical one. So now, looking back, the magnitude of the random chances that got us to this moment seem like such distant odds, you know? That there was a time before humans, before mammals. For most of the time, this was a planet for reptiles.
@kade-qt1zu Жыл бұрын
@@daniell1483 I'm glad you managed to break free.
@daniell1483 Жыл бұрын
@@kade-qt1zu Me too, thank you. :)
@ColonelBanana3 жыл бұрын
Cuteness and science
@daniellevinson69752 жыл бұрын
1:19 - 1:29 Thanks for the vocabulary lesson -- and especially for the underlying concepts therein.
@stephanieparker12503 жыл бұрын
Please do an episode (or even a few of them) on the history of the ear and the eye! 🙌🙌🙌🥰🥰
@YourPhysicsSimulator3 жыл бұрын
And the last stage of mammal evolution is when humans realize that PBS Eons is the greatest channel on KZbin. Almost 2 million people have reached that stage atm.
@crisptomato94953 жыл бұрын
Can you guys do a video on the origin of art?
@carissstewart32113 жыл бұрын
"Here we have a swastika from 10,000BC."
@kertpilman3 жыл бұрын
Or fart
@keithfaulkner63193 жыл бұрын
@@dr.floridaman4805 i sure hope no one here is dumb enough to pay even 500 pennies.
@pluspiping Жыл бұрын
Despite being a dinosaur and biology nerd since childhood, this is the first I'm really learning about the ear/jaw bone traits that scientists use to classify mammals. It wasn't what I expected, but the video did a good job of explaining!
@ivanalvarez63913 жыл бұрын
I love watching these videos when doing my skincare😂💙
@cupcakeknight43493 жыл бұрын
Honestly I still miss Steve when you're listing off the patrons, hope he's doing well out there...
@cosmicraptor60273 жыл бұрын
When you listed the four traits that all mammals have in common you didn’t say that they were all warm blooded. Are not all mammals warm blooded?
@dannielleeagles77913 жыл бұрын
Being warm blooded is not exclusive to mammals which is probably why they didn't mention it
@Algeriawindows693 жыл бұрын
Warm bloodedness is not a mammal exclusive so it doesn't count but fur and milk are a mammal exclusive
@cosmicraptor60273 жыл бұрын
Got it, thanks guys :)
@horse14t3 жыл бұрын
Ear pinna is mammal exclusive and yet it's never mentioned as a Mammal trait 🤷♀️
@Ghonosyphlaids3 жыл бұрын
@@horse14t correct me if I'm wrong, but she was referring to crown mammals, and platypus' don't have ear pinna?
@gaemlinsidoharthi3 жыл бұрын
The background music, along with the sad story or ancestors and their friends whom we lost along the way make this, somehow, a sad tale.
@EX0t1C3 жыл бұрын
I love this channel
@juggdekaprio58903 жыл бұрын
One the oldest mammal relatives is named after Morgan Freeman can’t be coincidental 😅
@yeetyeey54073 жыл бұрын
2:47 so you’re saying that fur is probably the feature that originated… furst…. ok I’ll show myself out
@amandawilcox96383 жыл бұрын
Yeet Yeey, Here's your eyeroll and rim shot! You've patiently waited all week. 🙄🤨🤦♀️ Blessings! Go, now.