What Happened To The Other Mesozoic Mammals?

Поделиться
HTML-код
  • Опубликовано: 24 ноя 2024

Комментарии • 634

  • @calumreid8939
    @calumreid8939 19 дней назад +262

    Just wanted to say that I found the graphics and description of the clades of mammals in this video very helpful for my understanding!! Thanks!

    • @woodsplitter3274
      @woodsplitter3274 19 дней назад +2

      Agreed. If we're watching, you can leave graphs on for awhile.

    • @p.bckman2997
      @p.bckman2997 19 дней назад

      Technically the description is not correct. Defining Mammaliaformes as cown mammals and any animal more related to them than to other existing animals means mammaliformes include things like Dimetrodon and Gorgonops. What the video calls mammaliformes are the anatomically defined mammals minus the crown group.

    • @sirmixcomps
      @sirmixcomps 19 дней назад

      I hated it same rotating pictures was terrible man

  • @drewr.schulz728
    @drewr.schulz728 19 дней назад +566

    What I would love to know is how many Mesozoic mammals/mamalliaforms had quills! They wouldn’t fossilize except in very specific conditions, but it would make a lot of sense for them to develop spines. We have FOUR seperate lineages of mammals today with quills (echidnas, tenrecs, hedgehogs, and porcupines) which makes me think there were likely several groups back then doing the same thing.

    • @carlosalbuquerque22
      @carlosalbuquerque22 19 дней назад +18

      Spinolestes

    • @carlosalbuquerque22
      @carlosalbuquerque22 19 дней назад +16

      And probably also Zalambdalestes

    • @TravellingTortuga
      @TravellingTortuga 19 дней назад +21

      Plus, we know Psittacosaurus had spines, so it hasn't just happened in mammals.

    • @chequereturned
      @chequereturned 19 дней назад +36

      @@drewr.schulz728 The porcupines are two lineages!

    • @targaryen7029
      @targaryen7029 19 дней назад +30

      I'm also very fascinated by the evolution of bats and flying on mammals. We know bats already flew by 55 Mya as per fossil evidences, but I wonder WHEN flying really evolved in mammals. It's fascinating that in the Jurassic we had a lot of Mammaliaforms already trying new niches.

  • @Xnaut314
    @Xnaut314 19 дней назад +123

    I've been asking for a Mesozoic mammal episode for years, and it's finally here! Castoracauda in all it's glory is such a twist in the stereotype of "dinosaur supremacy" during the period and proves that our ancient ancestors were not helpless dino fodder all the time. No mention of Repanomamus though, which makes me wonder if they're saving the toughest of mammaliforms for its own episode. Hope so!

    • @p.bckman2997
      @p.bckman2997 19 дней назад +11

      It's still a fairly generalized critter, much like a moden yapok or water opossum. Being aquatic, like a beaver, likely allowed it to grow a bit larger than its terrestrial relatives.

  • @memofromessex
    @memofromessex 19 дней назад +88

    I really enjoyed this episode of 'all them animals', especially the illustrations.
    I'm still amazed/confused how some species survived the Cretaceous, and others did not!

    • @TiggerIsMyCat
      @TiggerIsMyCat 19 дней назад +15

      They had a few episodes taking about that. Basically, were you a small generalist (who needed fewer resources and could utilize many different kinds of resources, so could survive on a little bit of this, a little bit of that), or small and semi-aquatic (less resources needed, but also your habitat was less disrupted), or small and ate seeds (fewer resources needed, but also seeds were the most abundant of the remaining food sources). Small burrowers were also more likely to survive since burrows are more climatically stable.

    • @marcob1729
      @marcob1729 19 дней назад +10

      Small, burrowed, ate seeds and/or insects. Basically, that's the recipe right there

    • @jesscmcmxc
      @jesscmcmxc 19 дней назад +5

      integument like fur or feathers also probably helped retain energy

    • @jonathan0225
      @jonathan0225 19 дней назад +2

      with my time here in the internet, tierzoo, casual geographic and PBS show, essentially the dev(s) brought down the nerf hammer and killed the prevailing meta and did some gameplay balances giving rise to new niches.

  • @shaddonon
    @shaddonon 19 дней назад +310

    6:40 Brian Engh's art is mindblowing; I can practically smell the wet plants, feel the sun, hear the gremlin yammerings

    • @memofromessex
      @memofromessex 19 дней назад +17

      I was about to say the same!

    • @donhillsmanii5906
      @donhillsmanii5906 19 дней назад +41

      And it’s REAL, not this AI prompted trash that everyone keeps using

  • @ThePipemiker
    @ThePipemiker 19 дней назад +322

    As a long time allergy sufferer, I often wonder if it wasn't the Chicxulub impactor that killed the dinosaurs: It was all that newly evolved angiosperm pollen that really sealed the deal.

    • @blackenedmagic888
      @blackenedmagic888 19 дней назад +83

      Could you imagine how loud a sneeze from, say, an Ultrasaurus would be?

    • @robertjackson1813
      @robertjackson1813 19 дней назад +12

      Last time I checked, seasonal allergies aren't fatal.

    • @ThePipemiker
      @ThePipemiker 19 дней назад +50

      @@robertjackson1813 Okay, if you want to get hyperliteral about it, it was asthma then.

    • @Dth091
      @Dth091 19 дней назад +25

      @@robertjackson1813 Perhaps not to anything living *today*, sure! :P

    • @brianroberts783
      @brianroberts783 19 дней назад +43

      Given that angiosperms fist appear in the fossil record 125 million years ago, I don't think that pollen reactions were to blame for the extinction of the dinosaurs. They had plenty of time to get used to it. And even aside from angiosperms, gymnosperms also produce plenty of pollen, and they pre-date the dinosaurs.

  • @BobaBushido
    @BobaBushido 19 дней назад +102

    Dead end species are my absolute favorite. Thank you for this.

    • @toddberkely6791
      @toddberkely6791 19 дней назад +13

      do you find them relatable?

    • @BobaBushido
      @BobaBushido 19 дней назад +21

      @toddberkely6791 im not talking to some weeb with an anime pic

    • @toddberkely6791
      @toddberkely6791 19 дней назад +10

      @@BobaBushido ,:)

    • @TheQuenchiestCake
      @TheQuenchiestCake 19 дней назад

      👀

    • @HuckleberryHim
      @HuckleberryHim 19 дней назад

      What on earth is a "dead end species"? That isn't how evolution works...

  • @Pottery4Life
    @Pottery4Life 19 дней назад +30

    An excellent, information dense episode. Thank you.

  • @Fantasygod930
    @Fantasygod930 19 дней назад +99

    So our ancient Cousins had their own beavers flying squirrels and moles My brain has grown exponentially!🤯

    • @shiftinganimela
      @shiftinganimela 18 дней назад +8

      Convergent evolution at its finest!

    • @jacobgame2757
      @jacobgame2757 18 дней назад +7

      ​@@shiftinganimelaWhat is interesting is as far as I know, humanoids are pretty much one of the only forms that don't seem to keep convergently evolving

    • @DarDarBinks1986
      @DarDarBinks1986 15 дней назад +1

      Convergent evolution will do that.

    • @Whatever94-i4u
      @Whatever94-i4u 13 дней назад +1

      @@jacobgame2757 Yes, because we don't have a specific niche that would favor our form, and we were also the products of a "perfect storm".

    • @Brandon-kt1qh
      @Brandon-kt1qh 12 дней назад

      Makes you wonder if there were mammals with dolphins or chimp like intelligence-maybe even greater intelligence.

  • @memyself3510
    @memyself3510 19 дней назад +19

    0:40 how is nobody talking about how cute that thing is?!

  • @theobozikis8225
    @theobozikis8225 19 дней назад +16

    Thank you for touching on the Multituberculates in this video. They were the longest lineage of mammals ever! I would like to see a video starring these long-lived, little known, incredible mammals one day.

  • @lorithavon
    @lorithavon 19 дней назад +216

    Three words: Tiny Ancient Platypus.

    • @swedneck
      @swedneck 19 дней назад +29

      a platypus? /Gasp!/
      Tiny the Ancient Platypus!

    • @sirmixcomps
      @sirmixcomps 19 дней назад +6

      three words: rotating crappy pictures

    • @MorganBrown
      @MorganBrown 18 дней назад +4

      Two words: Shark Mouse

    • @alfredwaldo6079
      @alfredwaldo6079 18 дней назад +5

      one word, thundercougarfalconbird

    • @edwardfrennmariano2951
      @edwardfrennmariano2951 18 дней назад +5

      @@swedneckDoofenshmirtz Evil Incorporateeeeed!

  • @marquesbowden0130
    @marquesbowden0130 19 дней назад +21

    6:41 that make sense, and it's also somewhat ironic that the biggest obstacle to mammalian evolution wasn't necessarily dinosaurs, but other Mammalian forms. Kinda wonder if they note live young or laid eggs

    • @thekaxmax
      @thekaxmax 19 дней назад +4

      Live young is one of the main things that define mammals

    • @martijn9568
      @martijn9568 18 дней назад +11

      @@thekaxmaxExcept monotremes😉. Milk glands or sweating milk would be better characteristic.

  • @FloozieOne
    @FloozieOne 18 дней назад +5

    This is one of the best videos you have made. The tracing of the animals, climate and flora woven together in a beautiful tapestry is both intriguing and miraculous. One wonders what would have happened if one of the earlier forms would have adapted to the changes and come out on top. Gotta say though, I like the world as it is.

  • @vertsang5424
    @vertsang5424 19 дней назад +13

    always found this kind of stuff fascinating, thank you

  • @Captainrizzlicious
    @Captainrizzlicious 19 дней назад +40

    The day I don't hear John Davidson Ng's name is a day I will cry.

    • @elonstruths1475
      @elonstruths1475 18 дней назад +21

      I miss Steve.

    • @zachg.4251
      @zachg.4251 18 дней назад

      ​@@elonstruths1475 and Steve! gone but never forgotten.

    • @lineandersen3329
      @lineandersen3329 18 дней назад +12

      ​@@elonstruths1475Steve will forever be a legend

    • @crisptomato9495
      @crisptomato9495 17 дней назад +5

      @@elonstruths1475 yeah RIP Steve

  • @marloelefant7500
    @marloelefant7500 17 дней назад +4

    I like how calm and professional he presents this stuff.

  • @OrdinaryCritic
    @OrdinaryCritic 19 дней назад +98

    As a therian, I approve this video.

    • @CommonThresher
      @CommonThresher 19 дней назад +1

      What is that to do with anything

    • @hamstsorkxxor
      @hamstsorkxxor 19 дней назад +15

      ​@@CommonThresher
      I mean, you're also a therian

    • @OrdinaryCritic
      @OrdinaryCritic 19 дней назад +2

      @@CommonThresher bark bark bow wow what was I made for

    • @HuckleberryHim
      @HuckleberryHim 19 дней назад +4

      You're just biased, I am a platypus and he barely mentioned us, as usual...

  • @operandwriter
    @operandwriter 19 дней назад +36

    13:16 Anyone else got a double take at Nico Robin

    • @Timatamelion
      @Timatamelion 19 дней назад +14

      Nico striked again! They were in a previous recent video

    • @MossyMozart
      @MossyMozart 19 дней назад +13

      I still miss Steve!.

    • @justcallmeSheriff
      @justcallmeSheriff 19 дней назад +9

      Of course the archaeologist pirate is a fan of PBS Eons!

    • @sumalikasbi4805
      @sumalikasbi4805 19 дней назад +3

      A one piece waifu here is crazy

  • @Didomate
    @Didomate 19 дней назад +669

    I once heard someone say mammals evolved from dinosaurs 💀

    • @CoralReaper707
      @CoralReaper707 19 дней назад +27

      Lol

    • @endc3043
      @endc3043 19 дней назад +39

      You never know.. we weren't around.. maybe their a missing link...?

    • @leeleaman8057
      @leeleaman8057 19 дней назад +138

      My sister (27) asked me if mammoths were dinosaurs 🤦🤣

    • @Morrison-saber-tooth
      @Morrison-saber-tooth 19 дней назад +12

      I think, I once seen this theory on one of paleontology iceberg charts

    • @darkmusica1346
      @darkmusica1346 19 дней назад +121

      Mammals and dinosaur split long before both exist.

  • @CMVBrielman
    @CMVBrielman 19 дней назад +88

    I’ve wondered if there happened to be any large mammals from the Mesozoic that we don’t have records of. Like how, even though mammals are dominant now, we still have large birds and reptiles.

    • @GalvyTheTom
      @GalvyTheTom 19 дней назад +43

      Maybe large mammals evolved on islands, separate from large dinosaurs and thus able to evolve into the larger-bodied niches? Perhaps these islands just sunk into the sea and disappeared, leaving no trace of their existence. Food for thought.

    • @CoralReaper707
      @CoralReaper707 19 дней назад +10

      Interesting thought experiment, ​@@GalvyTheTom

    • @carlosalbuquerque22
      @carlosalbuquerque22 19 дней назад +15

      Patagomaia and Repenomamus are such examples

    • @CoralReaper707
      @CoralReaper707 19 дней назад +15

      @carlosalbuquerque22 repanomamus is probably one of the more popular examples of a larger mesozoic mammal. It even was known to gobble up baby dinosaurs!

    • @marcob1729
      @marcob1729 19 дней назад +24

      Well, you have to define "large" and also consider the statistics here. Excluding crocodiles, a large reptile today might be the Komodo Dragon, but think of it this way: how likely is it that one species of lizard out of ~4,600 gets fossilized and we find it? (hypothetical scenario) We've only found about 700 species of dinosaur! They were on earth for 165 million years! The largest mammal in the Cretaceous that we've found was about 40 inches long and weighed maybe 30 lbs. It was carnivorous. Were there larger mammals? Almost certainly, and they don't have to have been on a sinking island for us to have missed them. The chances of getting fossilized and being found are miniscule.

  • @kathleenwoods8416
    @kathleenwoods8416 19 дней назад +14

    Honestly, its not surprising that the selection pressure dinosaurs represent would in part lead to this kinda specification.

  • @Zimisce85
    @Zimisce85 18 дней назад +13

    03:55 🎶 He's a semiaquatic, specialist mammaliaform of action 🎶

    • @GGregoryDarnley
      @GGregoryDarnley 17 дней назад +3

      For some reason I heard that in the Doofemschmirtz theme jingle

  • @mathmeetsmusic
    @mathmeetsmusic 19 дней назад +47

    Wake up babe! New Eons host just dropped!

    • @misterhat5823
      @misterhat5823 19 дней назад +1

      He has pubic hair on his chin.

    • @semaj_5022
      @semaj_5022 18 дней назад

      ​@@misterhat5823 Have some respect, please.

  • @LimeyLassen
    @LimeyLassen 19 дней назад +22

    This kinda "new regime, same as the old regime" thing reminds me a lot of fish evolution. Like several times, the dominant clade of fish will decline and some minor group will diversify and replace them, and pretty much replicate all the same niches. Maybe someday monotremes will take over and we'll have monotreme bats, monotreme whales, monotreme people...

    • @zacharymoss2994
      @zacharymoss2994 19 дней назад +2

      Doubt it, egg laying is not as efficient for mammals as live birth and they would need better teeth and better energy but anything is possible

    • @HuckleberryHim
      @HuckleberryHim 19 дней назад +6

      @@zacharymoss2994 They can just evolve viviparity exactly like the therians did. They lay very rudimentary eggs as it is. Given ample time and lack of competition, if all therians disappeared, monotremes would absolutely diversify like mad.

    • @Andre-c6z
      @Andre-c6z 18 дней назад +3

      @@HuckleberryHim i’m more confident in birds or even reptiles becoming the dominant species before monotremes.

    • @HuckleberryHim
      @HuckleberryHim 18 дней назад +1

      @@Andre-c6z That's why I said with ample lack of competition, although consider that Australia was still easily "conquered" by mammals though reptiles and birds had gotten there first. Who knows.

    • @simtexa
      @simtexa 16 дней назад +2

      It's not really that surprising once you consider that the core traits required to evolve a lot of very specific traits and occupy new niches already exist in all the lineages, but get more exaggerated or specialised in some.

  • @CoralReaper707
    @CoralReaper707 19 дней назад +54

    I kinda wish we still had at least some Multituberculates alive today. Heck, I wouldn't even mind some non-mammalian cynodonts still being around.

    • @Im-Not-a-Dog
      @Im-Not-a-Dog 19 дней назад +16

      I want a Thrinaxodon.

    • @whenthingsfly4283
      @whenthingsfly4283 19 дней назад +17

      Yeah it's pretty sad how limited the class of surviving mammaliaforms are. We have 3, and one of them is almost as scant of surviving species as the surviving sphenodons.

    • @CoralReaper707
      @CoralReaper707 19 дней назад +13

      @whenthingsfly4283 yeah, we're so lucky to even have tuataras alive at all. I kinda wish we had some non mammalian cynodonts running around on a remote island in the modern day, evolving into strange and unique forms...

    • @MossyMozart
      @MossyMozart 19 дней назад +10

      While I was in Wellfleet, Massachusetts, on the Cape, I once found the tooth of a Capecododon. You can tell by the all the lobster shell and corn cob scratches in the fossilized enamel!

    • @Z4RD4N34
      @Z4RD4N34 19 дней назад +3

      😅 ​@@MossyMozart

  • @michaelblacktree
    @michaelblacktree 19 дней назад +12

    Gabriel is doing great! 👍

  • @logr12dragonknight55
    @logr12dragonknight55 19 дней назад +9

    Love the new video from my favorite prehistoric RUclips site, though after re-watching some of the videos on this channel a question appeared to my mind and that question is in the future. Are they going to do a video the family of dinosaurs that the famous spinosaurus in the future?

  • @pikciwok6360
    @pikciwok6360 5 дней назад

    I had a long break in viewing PBS Eons and I am pleasantly surprised by a new host. His voice is very pleasant :)

  • @xwiick
    @xwiick 19 дней назад +1

    Thanks for all the hard work on these videos!

  • @kevinmorgan2968
    @kevinmorgan2968 19 дней назад +24

    2:09 exactly how I chase hotdogs

    • @tobineptune5804
      @tobineptune5804 18 дней назад +3

      Genuinely made me cackle, I scrolled to your comment at the exact same time it popped up on screen 😂

  • @ccoodd26
    @ccoodd26 18 дней назад +2

    PBS PBS PBS PBS! Keep the entertaining videos coming! 👍

  • @ZeMarkKrazee
    @ZeMarkKrazee 19 дней назад +6

    Somewhat unrelated, what happened to the Konstantin Haase studio? I just realized the studio has changed haha.

  • @BETTYLIBRIZZI
    @BETTYLIBRIZZI 17 дней назад +1

    I thought this was an excellent presentation; well paced and very informative.

  • @jeremyl862
    @jeremyl862 19 дней назад +6

    OMG Thank you for looking into multituberculates!

  • @avrilbas1257
    @avrilbas1257 19 дней назад +1

    I've been waiting for the calendar! Yay:)

  • @spacedimensia
    @spacedimensia 18 дней назад +6

    13:43 As a Montanan, I get it.

  • @ghostratsarah
    @ghostratsarah 15 дней назад +2

    Love seeing Nico Robin supporting PBS Eons

  • @narutouzumaki2157
    @narutouzumaki2157 19 дней назад +23

    Did mammalioforms laid eggs like other reptiles or foetus like marsupials?

    • @rafaelmarangoni
      @rafaelmarangoni 19 дней назад +25

      Yes. All amniotes laid eggs, including synapsids. The evolutionary novelty among therians is that they "lay eggs" inside their own bodies. But laying eggs is not a trait that's new in "reptiles" (sauropsids). The ancestors of sauropsids already laid eggs, like tetrapods, sarcopterygii, osteichtyes, vertebrates, chordates, etc. It's possible that even the early bilaterians laid eggs, since both vertebrates and invertebrates share that homology.

    • @narutouzumaki2157
      @narutouzumaki2157 19 дней назад +1

      @rafaelmarangoni did they form nests like platypus? Or lay eggs in burrows?

    • @carlosalbuquerque22
      @carlosalbuquerque22 19 дней назад +2

      @@narutouzumaki2157 Likely the former.

    • @rafaelmarangoni
      @rafaelmarangoni 19 дней назад +7

      @@narutouzumaki2157 Mammaliformes are not exaclty a species. It's a group, with a big variety of species within. So it's hard to answer that question, since it's much likely that you had both in that group.

    • @LuisAldamiz
      @LuisAldamiz 19 дней назад +3

      Obviously Therians do not lay eggs.

  • @z-wo4ue
    @z-wo4ue 19 дней назад +9

    Yay a mammal episode!

  • @tarantulacollective
    @tarantulacollective 7 дней назад

    Fascinating video!

  • @dersitzpinkler2027
    @dersitzpinkler2027 15 дней назад

    Welcome, Gabriel! Great presentation skills on this one!

  • @butkusfan23
    @butkusfan23 17 дней назад +4

    "Rodents of unusual size? I don't think they exist"

  • @kanealoha
    @kanealoha 19 дней назад +2

    Great video - and loved the art.

  • @Nawaf-
    @Nawaf- 19 дней назад +5

    1:44 omg. That background noise!! It scared me! 😭 I thought one of my cats was screaming a death scream! I ran out my room checking on them.
    When I returned and played the video I heard it again and realized it’s this video 😂

  • @gg5881gabby
    @gg5881gabby 11 дней назад

    I love the Enos segment of PBS!

  • @katarinarosell4422
    @katarinarosell4422 19 дней назад +12

    Every time I hear "niche" said to rhyme with "itch" I take 1D4 psychic damage

  • @nariu7times328
    @nariu7times328 15 дней назад

    YAY Complexly calendar! Love the pin Gabriel!

  • @gustamanpratama3239
    @gustamanpratama3239 19 дней назад

    Mantap! Thank you PBS EONS for always making great science videos!❤❤ It's such a big help, especially for people in third world countries with difficult access to science content. Such a very well presented topic on a 15 minute video.
    Could you please extend this kind of discussion in the video all the way back to the Synapsids (what were their sister clades, and why they disappeared and only the clade we belong to that eventually thrived).

  • @legendtrainerdj0427
    @legendtrainerdj0427 17 дней назад

    Love the outtake at the end there! You definitely were getting into that there Montana spirit 😁

  • @LiamFranklinFarang
    @LiamFranklinFarang 17 дней назад +2

    Love this

  • @Thelonious2Monk
    @Thelonious2Monk 19 дней назад +1

    Nice and informative as usual. I like the new (for me) presenter.

  • @apepchoko
    @apepchoko 19 дней назад +1

    Another great video, thks 😊👍

  • @KarlBunker
    @KarlBunker 19 дней назад +5

    We owe our existence (at least in part) to flowers. Cool. 🌷

  • @demetrinight5924
    @demetrinight5924 19 дней назад +1

    This is a really cool discovery. It looks like a beaver tailed otter. I wonder what other specialized mammaliaforms there were.

  • @landonbenson9220
    @landonbenson9220 19 дней назад +6

    Always look forward to these videos, very cool!!

  • @MichaelBurtonGahurton
    @MichaelBurtonGahurton 19 дней назад

    Great video. As always.

  • @TheDinosaurus99
    @TheDinosaurus99 19 дней назад

    Wow love this!!!! U learn something new everyday!!!!! Dont forgot evolutionary histories of pinnipeds and tyrannosaurids

  • @Ithinkthereforeiam-ph9nb
    @Ithinkthereforeiam-ph9nb 10 дней назад +1

    I am a therian atheist, lol.
    Very cool video❤
    Thank you for posting

  • @takenname8053
    @takenname8053 19 дней назад +3

    I thank Dinosaur Train for showing me the small mammal diversity in the Mesozoic...

  • @TiggerIsMyCat
    @TiggerIsMyCat 19 дней назад +3

    Ok. So. Rise of angiosperms made more insects, which helped insectivores, and it also caused climate change which knocked out the specialists as it often does, leaving our generalist/insectivorous ancestors to thrive. I think I understand.

  • @Ratty524
    @Ratty524 19 дней назад +2

    I want more representation of Mesozoic mammals in media, or just more prehistoric mammals in general cause it was such a distinct world even from now but the Dino’s hog the spotlight.

  • @krunoslavniderle3817
    @krunoslavniderle3817 19 дней назад +1

    Mesosoic mammals are often overlooked, but they have been allocated in more groups then today s mammals. I hope there will be uncovered more fossils from mezosoic mammals which were much more diversyfied then previously thought. Who knows we may found some never seen form of mammal.

  • @RDKirbyN
    @RDKirbyN 11 дней назад +1

    Lmao, the pseudonym Nico Robin for one of the Eontologists is apt

  • @festerallday
    @festerallday 17 дней назад

    I'm really digging the new host.

  • @TimesRyan
    @TimesRyan 19 дней назад +4

    Yay! Gabriel!
    Why are all the guys and gals on this channel so charming?

  • @PaulThronson
    @PaulThronson 19 дней назад +4

    Who is in charge of finding fossils? I want to help and I'm pretty sure everyone watching this video does too. Even if the chance that we get to name a species is almost zero (non-zero).

    • @AndrewTBP
      @AndrewTBP 19 дней назад +4

      Talk to your local university palaeontology department.

  • @victoriaeads6126
    @victoriaeads6126 19 дней назад

    Excellent choice of pin, that one is the pin that convinced me to join the BB pin club 😃

  • @BenNelson-zl6lj
    @BenNelson-zl6lj 15 дней назад

    I found some speculative evolution art that features Mesozoic mammals-like multituberculates-becoming bigger mammals, carrying niches that are already owned by animals that we're familiar with today.

  • @dwilly8381
    @dwilly8381 19 дней назад

    One of my fav bloopers😂❤

  • @elainexe
    @elainexe 6 дней назад

    This sets off a question in my mind. It's very interesting to hear about the diverse mammaliaforms that there were, and only certain types survived the aftermath of the giant meteor. This makes me wonder how it affected birds. I've heard some about early bird evolution, but what early bird diversity was lost to that same extinction event, and which ones survived? Did the surviving birds have some similar traits as the early mammals, or did they fill different niches? (perhaps more versatile in opportunity due to flight?) How did they adapt to other changing conditions like angiosperms?

    • @AndrewTBP
      @AndrewTBP 4 дня назад

      They already have videos about that.

  • @markcaputo8300
    @markcaputo8300 15 дней назад +1

    ❤❤❤❤ 😊😊 Thanks!

  • @huetzizi
    @huetzizi 19 дней назад +3

    so when do we consider a mammal a mammal what's so different between monotremes and the others, when do the first crown mammals appear then

    • @ekosubandie2094
      @ekosubandie2094 19 дней назад +4

      Surprisingly enough it's the presence of milk and mammary gland that traditionally define crown mammals to which is kinda difficult to determine with only fossils at hands since those features obviously does not fossilize

  • @lividXmimic
    @lividXmimic 19 дней назад

    Love the Killerwhale pin!

  • @l.a.gothro3999
    @l.a.gothro3999 19 дней назад

    I get sooo excited when I see you have a new video uploaded! I was raised to know about evolution, not religion; I think that has something to do with it. I'm saving the longer "Could You Survive the..." videos for later to binge. Thanks so much!

  • @asierra86
    @asierra86 19 дней назад +9

    All this tells me is that if these mammaliaformes would still be around today they would just be mammal 🤷‍♂️ dunno why make the distinction. It's like calling sauriscians true dinosaurs while calling ornithischians "dinosaurformes"

    • @dracorexion
      @dracorexion 19 дней назад +7

      Not necessarily. Take the Tuatara, a species of reptile in New Zealand. Despite looking like a lizard and even having some behavior like other lizards, it is, in fact, not a lizard. People make an effort to ensure the Tuatara is not confused as "just a lizard" despite its appearance.
      Now if the groups of mammaliaformes that are not included in "true mammals" were alive today, their classification may very well be as true mammals themselves, but they might be considered distinct enough that we'd call them something like pseudomammals or make some other type of classification for them similar to the Tuatara.

    • @ExtremeMadnessX
      @ExtremeMadnessX 19 дней назад +4

      I think the same about extinct crocodylomorphs.
      If they are still alive, would they be considered as just another group of crocodiles?

    • @ExtremeMadnessX
      @ExtremeMadnessX 19 дней назад +6

      ​@@dracorexionThose mammaliaformes looked more like regular mammals than platypus and echidna.
      So there is a question: Would platypus and echidna be considered true mammals if they were extinct group?

    • @AlexanderRM1000
      @AlexanderRM1000 19 дней назад

      They're thought to not have given birth quite the same as placental mammals, and probably had some other differences that are apparently harder to evolve between than the more visible ones like being a flying squirrel

    • @lobachevscki
      @lobachevscki 19 дней назад +1

      ​@@ExtremeMadnessXAnd dolphins look more like fish than other mammals but they are not fish, what's your point? If equidnas and platypuses were extinct taxa we wouldn't know for sure if they were modern mammals, it would be this very own situation. We classify these animals as mamaliforms because that is as much as the evidence tells us they are

  • @judithdomangue9995
    @judithdomangue9995 19 дней назад

    So interesting!

  • @ilkoderez601
    @ilkoderez601 19 дней назад +20

    Love the new guy. The new girl (I like her) but it was a more difficult transition (regarding smooth narration).

  • @tylermacdonald8924
    @tylermacdonald8924 19 дней назад +3

    So in summary, an extinction that made more niches followed by angiosperms modifying the environment?

  • @davesatxify
    @davesatxify 9 дней назад

    very interesting. also sad that youtube waited 10 days to show this to me despite how widespread my viewing of all the complexly channels is... :(

  • @settrasurfs1780
    @settrasurfs1780 19 дней назад +9

    Landorus-Therian implies that Landorus-Incarnate is a monotreme

  • @theOwnuts
    @theOwnuts 11 дней назад +1

    Watching this with my hefty housecat on the lap 😸

    • @r.green.339
      @r.green.339 5 дней назад

      I bet he found it interesting

    • @theOwnuts
      @theOwnuts 3 дня назад

      @@r.green.339 no not really, he ignores my screen and focuses on the cuddling.

  • @GaryJohnWalker1
    @GaryJohnWalker1 19 дней назад

    Fascinating. The century old idea of shrew like generalists just surviving up to the end of the Cretaceous iasn't yet shown to be wrong, just that the whole mammal-like story was far more complex than told and not just dinos keeping future placentals/therians down. And has this cluster of channels including Eons had its own switch to a less hospitable environment causing the rationalisation of resources including people (and calendars)?

  • @shivin6997
    @shivin6997 19 дней назад

    I love the music in this episode! Where is it from?

  • @content-7881
    @content-7881 19 дней назад +6

    I wonder what the dominant mammal group will be in 50 million years!

    • @MossyMozart
      @MossyMozart 19 дней назад

      Dead?

    • @MarkVrem
      @MarkVrem 19 дней назад +4

      going by this video, odds might be highest on something small eating bugs

    • @eybaza6018
      @eybaza6018 19 дней назад

      Platypuses WILL take over

    • @b.a.erlebacher1139
      @b.a.erlebacher1139 19 дней назад +1

      Rodents have the most species, are extremely diverse, and have many very adaptable species. I suspect that a new immense extinction, perhaps like the one humans are the main agent of currently, could result in the most successful survivors as mice and rats.

    • @Manananggal-oe8gs
      @Manananggal-oe8gs 18 дней назад

      I also wonder if human still exists 50million years from now.

  • @C-Farsene_5
    @C-Farsene_5 19 дней назад +6

    Somewhat unrelated question, but do we know if multituberculates layed eggs?

    • @carlosalbuquerque22
      @carlosalbuquerque22 19 дней назад +2

      No they gave birth like placentals

    • @zacharymoss2994
      @zacharymoss2994 19 дней назад +1

      I wouldn't be surprised if they did, considering they're older than the 3 modern mammal groups

    • @carlosalbuquerque22
      @carlosalbuquerque22 19 дней назад +3

      @@zacharymoss2994 A recent study shows that they gave birth like placentals

    • @C-Farsene_5
      @C-Farsene_5 19 дней назад

      @@carlosalbuquerque22 interesting, meaning to say live birth is convergently evolved among mammals?

    • @ekosubandie2094
      @ekosubandie2094 19 дней назад +4

      @@C-Farsene_5 Multituberculates were actually more closely related to Therian mammals than Monotremes, so live birth may have been common trait shared by our common ancestors with them

  • @luthfiramadhan99
    @luthfiramadhan99 19 дней назад +3

    wow miss Nico Robin the archeologist? not paleontologist

    • @ceymiss1
      @ceymiss1 19 дней назад +1

      I did a double take as well

  • @JMDinOKC
    @JMDinOKC 13 дней назад

    It's the same old story in evolutionary biology: you think you know how species evolved, and then you discover forms that are older - sometimes much, much older.

  • @AqeefHusaini
    @AqeefHusaini 19 дней назад

    make the history of Stingray video next please❤

  • @Elemarth
    @Elemarth 19 дней назад

    I really wanted a bizarre beasts calendar since I missed out last year. I'm disappointed :(

  • @daleharsh6424
    @daleharsh6424 19 дней назад +6

    Is the map guy from Chicago? Is that why Chicago is highlighted on Pangea? 4:45....

    • @AndrewTBP
      @AndrewTBP 19 дней назад +4

      It’s a running gag. It’s highlighted in lots of Complexly videos.

    • @martijn9568
      @martijn9568 18 дней назад +4

      It’s made by Christopher Scotese from the PALEOMAP project, who was an undergraduate student at the University of Illinois in Chicago. You can easily find his stuff here on RUclips and over at his own website.

    • @kylekrizizke6115
      @kylekrizizke6115 17 дней назад +2

      This map is actually on a touch screen at the Chicago Natural History museum. You can go through 500 million years of plate tectonics. It's really cool. Most likely the museum and artist put it up online for anyone to see and use, or with a fee to the museum/artist.

  • @TheMooseNextDoor
    @TheMooseNextDoor 19 дней назад

    Neat video

  • @iTsEfFiNsTePhh
    @iTsEfFiNsTePhh 19 дней назад +1

    I mean to be fair they still were living in the shadows of dinosaurs since they're dang near microscopic compared to the biggest dinosaurs 😂
    That doesn't downplay how cool they are tho even the tiniest single celled organisms are awesome ❤️😊
    (I guess i'm biased because there's so many animals alive today that look like this and same applies to a lot of other animals but there's nothing that looks like dinosaurs especially not in terms of their size- our modern birds are dinosaurs and you can definitely see the similarities but still not the same ya know? 🤷🏻‍♀️😕)

  • @sopernovashrez
    @sopernovashrez 19 дней назад +1

    Mesozoic mammals: the OG underdogs, literally. Spending millions of years just being snack-sized! 🐭 Just wait till the meteors drop - glow-up season is coming!

    • @kiras3180
      @kiras3180 17 дней назад

      Causing a rush on a mass extinction isn't the glow up i'd want.

  • @johnabbe
    @johnabbe 19 дней назад +2

    All your videos are great to learn from, and inspiring, and this one stands out as a particularly top-notch one. Calendar looks lovely, as well!
    Thanks for all your work, all you animals. :-D

  • @morewi
    @morewi 19 дней назад +4

    Didnt they find fur in copperlite fossils from the permian period

    • @eybaza6018
      @eybaza6018 19 дней назад +2

      It's not 100% confirmed but likely. And we have no way of knowing what exact animal did they belong to

    • @carlosalbuquerque22
      @carlosalbuquerque22 19 дней назад

      @@eybaza6018 They likely belong to dicynodonts since the hir comes from a carnivore's faeces

  • @C-Mah
    @C-Mah 18 дней назад

    I seem to remember a video from this channel where a virus moved us to placental.

  • @Tungdil_01
    @Tungdil_01 18 дней назад +1

    Ha! Take that mammals! Next time remember this when someone makes fun of us dinosaurs 🦖🦕

  • @Dosadniste2000
    @Dosadniste2000 18 дней назад

    Next: what happened to mammaliaformes in Cenozoic.

  • @multiyapples
    @multiyapples 11 часов назад

    I need to know which mammal would win in a battle royale.