If you are looking to learn more about ichthyosaurs, you can check out our video "When Ichthyosaurs Led a Revolution in the Seas" and if you have already watched that and just want more Eons content in general, you should check out our new podcast "Eons: Mysteries of Deep Time", available now wherever you get your podcasts! (Subtle plug)
@drts69552 жыл бұрын
Plugging your own channel? Disgraceful haha
@trevorlaheyson15702 жыл бұрын
I should sleep right now greetings from Germany
@Raygathex2 жыл бұрын
I thought we had a handful of giants during the Paleozoic Era? Like Para/Helicoprion?
@trevorlaheyson15702 жыл бұрын
I love your videos thank you for the content
@matthewpraayjr.97972 жыл бұрын
Wouldn’t dunkleosteus in the Devonian period reaching 33 feet long count as a “giant”
@lucasotis95252 жыл бұрын
I actually really like the visual aid of placing the animal in question behind or slightly above the narrator, usually comparing the size next to a currently living relative is a hit or miss since some folks may not be familiar with the animal in the first place. I do like that PBS Eons uses the presenters as scale to really drive the sense of mass home, it's surprising that more nature channels don't do that. Also, something about the person moving next to the example is more impactful then an image next to an image. (We see you editors, we love you too) Also, where did she get that shirt? I love it!
@brookegravitt41172 жыл бұрын
I actually noticed that in this video and 1000% agree!
@kendraevers23032 жыл бұрын
I did an obsessive amount of Instagram stalking to find it's from the Mary Anning Rocks website.
@afisnet2 жыл бұрын
They have been doing that since inception I think
@ferrousiron71652 жыл бұрын
Wouldn't be an issue if you have the concept of proportions.
@ZombieBarioth2 жыл бұрын
@@ferrousiron7165 Having a concept of proportions doesn't necessarily make it easier to visualize something. You have a concept of money, right? Now imagine what 1 trillion dollars looks like. Same idea.
@andrewtennant18892 жыл бұрын
It's amazing to me how much like dolphins icthyosaurs were. Convergent evolution at its finest.
@micahgelfand82822 жыл бұрын
A sleek hydrodynamic shape with flippers is a winning design!
@Goudhaantje19932 жыл бұрын
Technically dolphins look like ichthyosaurs. The reptiles did the fish thing first.
@toughbutsweet12 жыл бұрын
And they are both kind of cute.
@nicolaasstempels82072 жыл бұрын
And more than just their general shape, they breathed air and were viviparous. Indeed classic convergence.
@stoyantodorov21332 жыл бұрын
@@Goudhaantje1993 Fish did the fish thing first. So technically both dolphins and ichthyosaurs look like fish.
@Flufux2 жыл бұрын
Okay, I knew Cymbospondylus was big, but I did not know they grew THAT big.
@scott12852 жыл бұрын
That's a spicey ichthyosaur!
@danny55510002 жыл бұрын
Gabriel iglesias said it best. DAMN!
@Scarletraven872 жыл бұрын
Probably bigger. The fossil record proves who existed, not who didn't. Sure, one can speculate, theorize and conclude. But if you found just one of said species it probably wasn't the largest of its kind.
@adlockhungry3042 жыл бұрын
Insane, right?
@dinofanaticgojifan57602 жыл бұрын
Me too.
@leeleaman80572 жыл бұрын
I’d like to say thank you to PBS Eon’s. Nothing has ever inspired me like this channel. I cannot wait to see what comes next
@TyTimeIsAwesome2 жыл бұрын
It took this animal 3 million years to get so big. While that's short compared to others as mentioned like the blue whale, I still can't help but be amazed this animal was around for so long. Modern humans have only been around for 300,000 years. It's crazy to see what we'll be in 3 million years.
@valiroime2 жыл бұрын
If we survive ourselves. We’re our own worst enemy.
@TyTimeIsAwesome2 жыл бұрын
@@valiroime Maybe. Whose to say in a million, no- in just another 300,000 years what kinds of creatures will arise. My prediction is that our biggest rival as humans won't be large, intelligent animals, but rather the microscopic ones like bacteria/viruses that will challenge us.
@ekosubandie20942 жыл бұрын
Whales actually reached megafaunal size in 5 million years though with Basilosaurus at 15 to 20 meters no less, but then they kinda shrunk again after Eocene and only become true colossal leviathans after Miocene epoch
@gerrardjones282 жыл бұрын
I mean I were still living like we are now we probably wouldn't change that much, hopefully we'll be around in 3 million years
@dv92392 жыл бұрын
If you start swimming now your great great great great great great great great great grandchild might grow up to be around 8 feet tall
@alioramus16372 жыл бұрын
ichthyosaurs are one of evolutions success stories. They existed from the early triassic 250 million years ago to the late cretaceous 90 million years ago. They diversified in to many niches in the ocean that cetaceans are filling today. They revolutionized the seas for ever. There are Ichthyosaurs similar to Shonisaurus believed to have reaches sizes comparable to that of blue whales.
@bkjeong43022 жыл бұрын
Ichthyosaurs even held out much better against competition than previously thought (then again, this seems to be the rule rather than the exception in supposed cases of group-level displacement). They actually had one last wave of diversification (including into apex predator niches) in the Early Cretaceous before being wiped out by the Cenomanian-Turonian Boundary Event. It’s only after this that mosasaurs become fully aquatic and high successful, indicating that ichthyosaurs (and the pliosaurid plesiosaurs) were preventing them from taking over beforehand.
@DogsWallop2 жыл бұрын
I love how some laid eggs and others had live young
@shauni_jade2 жыл бұрын
Not so successful if they're all dead don't you think
@gastonpossel2 жыл бұрын
@@shauni_jade They were around as ichthyosaurids for 160 million years. Thats a strong success case compared to hominids, that have been around just a couple of millions of years as human/ape shaped animals (and shurely won't last much longer, in the light of recent developments).
@dstinnettmusic2 жыл бұрын
@@shauni_jade all species will go extinct eventually. Don’t cry because it’s over, smile because it happened.
@idraote2 жыл бұрын
We sometimes talk about animals evolving through millions of years and then going extinct as if it were nothing... But our own genus is just about 2 million years old (depending on how you count and which species you consider to be "human"). That kind of put things in perspective, doesn't it?
@abelhapedras2 жыл бұрын
Right! Our own species has only existed for about 200 thousand years...
@ejenfaiproduction1552 жыл бұрын
If everybody understanding this, everybody want to live in harmony
@Hero_Bryan2 жыл бұрын
And yet we have become the smartest and the most sucessful species to live on the planet in that short timespan
@jamiek6452 жыл бұрын
@@Hero_Bryan unless there was another species before who was more intelligent than us and considered doing the stuff we do but thought better of it so left no sign of their intelligence
@Samdgtmgtma2 жыл бұрын
@@jamiek645 yeah no you likely have to develop to a degree that would cause you to leave substantial evidence in the fossil record in order to realize and choose not to cause the damage advance society can
@MrSigmaSharp2 жыл бұрын
I'm fascinated by the sheer scale of things specially time, in this channel. Very rapidly... 3 million years.
@TragoudistrosMPH2 жыл бұрын
Look at whale's 50 million years... Imagine being lost for 3 days, vs 50 days... But yeah, stunning amounts of time!
@sdrtcacgnrjrc2 жыл бұрын
Kind of puts things in perspective
@donotreply89792 жыл бұрын
Unnecessary commas and periods
@MerkhVision2 жыл бұрын
@@donotreply8979 your comment is unnecessary lol, the original one wasn’t that bad.
@syx99862 жыл бұрын
I'm from Nevada, and the ichthyosaurus is our state fossil. Thanks for the ending credit acknowledgment of my people, the Northern Paiute!
@SacrosanctStories2 жыл бұрын
Yes indeed! I thank them for indigenous acknowledgment, too!
@JaysonBicBoi2 жыл бұрын
I mean yall do kinda look like them 😂
@LadyViscera2 жыл бұрын
Okay, now this is weird. I hadn’t thought about cymbospondylus since I was a little kid, and suddenly earlier today I remembered they existed and how cool they sound. And now this video has come out, teaching me about the exact subject I thought about looking into only a few hours ago.
@aaronmarks93662 жыл бұрын
I love when things like that happen
@gandalfforpresident46762 жыл бұрын
It's usually moments like this that make you question reality.
@quinmatthew12 жыл бұрын
Nigel Marvin?
@themiddleman30602 жыл бұрын
Yeah cuz most kids remember the latin name 🙊
@zarmindrow58312 жыл бұрын
Probably psychic. Be careful.
@1998topornik2 жыл бұрын
Such rapid appearance of animal this size after the most devastating mass extinction is incredible.
@maddieb.42822 жыл бұрын
Extinction events open up a lot of environmental niches so some really exciting explosions of evolutionary change can happen afterwards! It’s pretty wild!
@polespinosa48582 жыл бұрын
3 million years for such an impressive change its incredible!
@DefektiveEnvy2 жыл бұрын
I find icthyosaurs so fascinating. I just love looking at the specimen at my local museum. I consider myself lucky to have been able to see the collection at the London museum of natural history, that was really fantastic
@Eo_Tunun2 жыл бұрын
With the cold blooded lizards, the laws of scale make gigantism very helpful: The length growing linearly, the surface grows with the length squared and the volume with length cubed, the volume over surface ratio keeps growing. In cold environments like the sea this helps the ability of a predator to move more quickly and to maintain heat it collected when dwelling near the surface in regions warmed by sunlight for longer and maintains the heat of its own metabolism generated when active. So it's not a surprise bigger ichtyosaurs were a success.
@rafikioftatooine52682 жыл бұрын
That's alot of english for me not too be able too understand a word.
@Eo_Tunun2 жыл бұрын
@@rafikioftatooine5268 It mainly is the maths. Lenth: L Area L² Volume: L³ If you double the length of a body, its surface area gets four times a big, its volume eight times as much as it was before. The loss of heat from a body is proportional with its surface area. The bigger a body is, the smaller the ratio of volume over area gets, so the heat loss gets less. Muscles produce warmth when working, also with cold blooded animals. A big cold blooded being will thus have some of the advantages of warm bloodedness by just becoming very big.
@alioramus16372 жыл бұрын
Ichtyosaurs were warmblooded. We have direct evidence of it as fossils of them were found with blubber. Modern cetaceans, seals and even polar bears have it to keep them warm in the cold water.
@Eo_Tunun2 жыл бұрын
@@alioramus1637 Does a heat insulating feature suffice to say a species was able to actively control its warmth via metabolism? Still a stunning and highly interesting bit of info for which I thank you! ^^)
@ThePotatoSapien2 жыл бұрын
…pretty sure ichthyosaurs were warm-blooded dude
@matthewpraayjr.97972 жыл бұрын
I’m surprised dunkleosteus reaching 30 feet and being a massive powerfully built fish isn’t considered the first “giant”
@manzac1122 жыл бұрын
40 foot Parahelicoprion: I got you.....
@Games_and_Music2 жыл бұрын
@@manzac112 Dunkleosteus is from the Devonian, a couple sneezes before the Parahelicoprion's Permian.
@Games_and_Music2 жыл бұрын
As far as i know, Dunkleosteus was the first giant apex predator. It's been my favorite prehistoric animal ever since they found feathers on raptors.
@TheHortoman2 жыл бұрын
@@Games_and_Music well maybe vertebrate, orthocone and jaekelopterus were earlier and very big and its a stupid classification "giant" whatever that means
@Ezullof2 жыл бұрын
@@TheHortoman Orthocones are the name of a certain type of shell. It's not a species. Some orthocones can be quite long, but I'm not sure if the longer ones actually predate Dunkleosteus. Sea scorpions could reach impressive sizes for their time, but they were still dwarfs compared to Dunkleosteus.
@Secret_Takodachi Жыл бұрын
I like how in every artist rendition you can see Ichthyosaurs going "AAAAAAAAAA" 😂❤
@adamthompson40722 жыл бұрын
Love the fact that I can't imagine how large something is (ichthyosaurs, whales) without having a visual reference
@chelseacomps8292 жыл бұрын
Yep
@SirLad2 жыл бұрын
Need that banana for scale.
@rwomble12 жыл бұрын
These evolutionary biology videos are great! it's awesome PBS is putting out these accessible and informative snapshots of time. It makes people I know what to become paleontologists!
@Om_Ondos2 жыл бұрын
You guys are amazing with these disclaimers regarding indigenous peoples. This is often disregarded and I’m happy to see that some people take this into account when creating content
@SgtKaneGunlock2 жыл бұрын
"Multiple Leviathan class lifeforms have been detected in this area are you sure what your doing is worth it?"
@sarahdike302 жыл бұрын
can you please make a video about megalania it's a giant komodo dragon that lived in Australia.
@michaelk19thcfan102 жыл бұрын
In honor of Women's History Month, English fossil hunter and paleontologist Mary Anning discovered the first identified Ichthyosaurs in 1811 at age 12. 1811 also saw the publication of Jane Austen's first novel "Sense and Sensibility".
@TheYuriiaraujo2 жыл бұрын
👏🏼👏🏼👏🏼
@MrsBrit12 жыл бұрын
And she's wearing her Mary Anning Rocks shirt! The status is in its final stages of casting and will be displayed soonish!
@nwahnerevar93982 жыл бұрын
There's also a film featuring her played by Kate Winslet. Saoirse Ronan sits on her face at one point.
@enkisdaughter47953 ай бұрын
@@nwahnerevar9398That’s the usual Hollyweird perversity. Happy to hear that Hollyweird is dying off because people are fed up of the perversions within the industry. There’s nothing historical to suggest such a thing. I’m an English woman and very proud of Mary Anning.
@nwahnerevar93983 ай бұрын
@@enkisdaughter4795 I'm proud of Mary Anning too, which is why there's nothing wrong with watching her lez out a bit.
@fihyrulesmonado76592 жыл бұрын
You’re telling me this thing was a real-life Subnautica monster? That’s cool.
@MargoMB192 жыл бұрын
That adorable big-eyed conodont! I love how cute some of the depictions in these videos are.
@Tsotha2 жыл бұрын
knew that some ichthyosaur species (like Shonasaurus and Shastasaurus) got as big as the biggest modern day whales but never heard of this one until now, thanks for the video
@koalamarsc74522 жыл бұрын
Bruh this channel has got me hooked and I’m learning about this stuff rn in class
@TragoudistrosMPH2 жыл бұрын
*meme of guy checking out girl (Eons) while next to offended girl (Teacher)*
@michaeldy31572 жыл бұрын
A episode about colorados flourisants rare fossils is needed. We would know little of that eras small animals without them and the site. But another great ep here
@GoodLuckSugar2 жыл бұрын
I'm a simple man: I see a new Eons video, I click the hand up
@thelaughinghyenas84652 жыл бұрын
Now this is more like it! This is the detail and quality that I expect from Eons. Keep these up.
@raulvidal23432 жыл бұрын
Lizard seals, lizard dolphins and lizard sharks, the ichthyosaurs are amazing.
@jamesmitchell69252 жыл бұрын
Yeesssssss. More of this type of content, please! I can’t like this hard enough. Also, you’re my favorite host. Is there an elasmosaur episode yet? Why is it’s neck so long? Is it possible that a few survived to inspire myths like Loch Ness? Are they more related to ichthyosaurs or specific dinosaurs? Are pterosaurs more like birds than dinosaurs like velociraptor or stegosaurus ? Is apatosaurus or triceratops more like modern birds than pterosaurs? What were gorgonopsids and other Paleozoic megafauna like? Just trying to suggest topics for episode. Thanks for making this everyday everyone.
@tapele59872 жыл бұрын
Isn't it possible that the way icthyosaurus reproduced also played an important role in their quick transition to gigantism?
@zarmindrow58312 жыл бұрын
What do you mean, doggie style?
@thomasshelbyasmrconnoiseur70462 жыл бұрын
Probably missionary
@jeffreygao39562 жыл бұрын
Doubtful, it was just live birth. No different from most marine reptiles.
@lyrimetacurl02 жыл бұрын
Fishy style
@Junketh712 жыл бұрын
I remember seeing this animal in Impossible Pictures’ Sea Monsters trilogy. It was one of the first truly big sea reptiles of the Mesozoic.
@Blankanvaz2 жыл бұрын
8:32 I see that salmon just chilling there.
@DardS8Br2 жыл бұрын
I saw Cymbospondylus at the LA NHM the day after it was described, and let me tell you, it was HUGE. The skull alone was taller than I am, and probably weighed a couple hundred pounds.
@husselbeh10582 жыл бұрын
I genuinely love this channel so much. I'm far from an expert or even close to knowledgeable on any of these subjects but they fascinate me greatly. These videos are so easy to digest and delivered in a way that makes them easy to understand even for noob like me ^^ Thanks to all of you at Eons for your continued work, I wish I could afford to support you more
@SweetBerryWine30002 жыл бұрын
I love your t-shirt Callie! Looking forward to the eventual installation of the Mary Anning statue in Lyme Regis. I also love ichthyosaurs, and I love this channel! Great stuff all around. :)
@leeleaman80572 жыл бұрын
It’s amazing how quickly they evolved. It makes me wonder who evolved fasted in the fossil record.
@LimeyLassen2 жыл бұрын
Humans are one of the contenders for that honor!
@nicolaasstempels82072 жыл бұрын
Insects?
@shannarafryer31112 жыл бұрын
Probably fish and insects
@Magmafrost132 жыл бұрын
5:44 that seems like a misleading way to phrase that. All ecosystems are most productive at the lowest level of the food chain. Its not possible for them to not be. That's *why* baleen whales can be so big, because they exploit the more productive lower levels instead of the less productive higher levels.
@shiny_birb26782 жыл бұрын
Sounds a lot like capitalism
@themiddleman30602 жыл бұрын
2:56 woooah look at the eyes on this beauty
@reidflemingworldstoughestm13942 жыл бұрын
"Are you still walking on land?" "Yeah." "OMG, that's so Permian."
@redwolf1219902 жыл бұрын
Gotta love the host-to-animal size comparison. Dinos and related animals got BIG.
@mattwaw26432 жыл бұрын
As always, you delivered a very complicated knowledge in a very simple way. /and that contribution note at the end was very nice.
@MrBogus2132 жыл бұрын
If there's an afterlife of any type, I sincerely hope I could be provided the ability to view, observe and learn about all life to ever exist.
@greva29042 жыл бұрын
In that case you’ll spend most of eternity learning about bacteria and nematodes. Rather you than me!
@shiny_birb26782 жыл бұрын
Honestly I hope when I die I get to learn about everything like that. The ability to scroll through time, zoom in on certain animals, learn about how the universe works...
@cherrysdiy50052 жыл бұрын
I'd always thought the hereafter could be much like that. Heaven, to me, is a place where everyone is reunited again and you will learn all you ever wanted to know.
@DeathInTheSnow2 жыл бұрын
I wonder how long they would have gone before they all came colossal crabs... On a side note, what variety of intelligence was there for ancient earthlings like these? Was there any inclination of tool use like there is with modern dinosaurs and some modern synapsida? Are there any hypotheses on trapping during hunting? Or play during adolescence? I'm super curious about what we've learnt!
@MarkWTK2 жыл бұрын
oh i didn't know about dinosaurs using tools? is it for cracking eggs?
@DeathInTheSnow2 жыл бұрын
@@MarkWTK They use them for opening seeds and reaching food in difficult places, such as within long, narrow hollow structures.
@stefanostokatlidis48612 жыл бұрын
Tool use in the water is quite difficult. Probably we wouldn’t find any signs of tool use and play in cetaceans if they were all extinct by now. We would say just massive animals adapted for predation. Probably in life they had some intelligence, but we don’t know. Their way of growth was different though. Mammals nurse their young with milk. Probably those animals were going to be able to eat immediately. So no adolescence in the same way as in mammals.
@felixsanders16912 жыл бұрын
The sheer difference in scale of life on earth is something truly wonderful, to see a living blue whale in the wild is one of the top points of my bucket list.
@flotterotter172 жыл бұрын
Hey, great video as always! I really love the first episode of the podcast, it was amazing to listen to and I was sad when it already ended after 18 minutes. Can't wait for new episodes!
@feliciagarcia2332 жыл бұрын
Please please do a video on how dogs turned into seals. Nov 28 2018 Hank talked about it in a video and I've waited for it ever since lol
@sithlordbilly42062 жыл бұрын
The little animal guy in the beginning of the video is a cute little guy! 😍
@AliceHollend2 жыл бұрын
I just want to thank Michelle for her cheerful voice and intonation! It's somehow both cheerful and calming.
@veggieboyultimate2 жыл бұрын
If this discovery was made before Walking With Monsters Sea Monsters, the Cymbospondylus experience could've been scarier.
@joaquimb.3692 жыл бұрын
Dear Santa, for Christmas I would love to get an Eon's episode on Island continent South America ecology. Maybe it will come true in time for Christmas.
@the_gaming_hyena242 жыл бұрын
Fascinating. Could you do a video on the ceratopsians?
@a.kitcat.b2 жыл бұрын
I uh...misjudged their size until you put up the size reference compared to you. That's a really big reptile!! It's so interesting how they had some of the first large creatures and I mostly love them for their eyes- so big!!
@stephen98692 жыл бұрын
Can you guys possibly make a video on how and when animals first learned to instinctively fear humans? I know its a tricky one!! I just got the idea when a bird came up to the birdfeeder outside my bedroom window, but flew off without feeding as soon as it noticed me, and it got me thinking...
@MinStam2 жыл бұрын
Yes, my favorite marine animal
@luthfiannisarusdartoputri3072 жыл бұрын
i love binge-watching all of PBS Eons' vids (and their shorts too!) especially when im about to wakey-wakey from the drowsiness doing my own business. thank you guys, keep em coming.
@85jacob852 жыл бұрын
Probably my favorite KZbin channel.
@Sammyverb2 жыл бұрын
When they acknowledged indigenous lands my heart melted
@mpumelelokhumalo71072 жыл бұрын
Honestly, I always get stumped when these guys are like: "It was a rapid change" Me: "So... like, ten years?" Them: "2 million years" 😭😭😭
@SacrosanctStories2 жыл бұрын
Thank you for acknowledging indigenous peoples.
@samuele37752 жыл бұрын
I can give you the best honor i can give: watching your videos while eating
@nerdyandawesome2 жыл бұрын
Idea for a new episode: Why are the biggest species in the seas not fish? Is there a natural size limit for fish?
@bala57802 жыл бұрын
Great idea
@smurfyday2 жыл бұрын
I think mammals are so much more warm-blooded and have huge brains, they're driving even sharks towards extinction.
@nicolaasstempels82072 жыл бұрын
I think breathing air with a high O2 content may have something to do with that. Note, some sharks can get really huge such as Megalodon, and the extant whale shark. The ray-finned Leedsichtis problematicus is estimated to have been even larger, at least 17 m.
@dynojackal19112 жыл бұрын
Totally missed out on mentioning Shonisaurus by name. Would've loved here so details on THE largest icthyosaur ever.
@Tsotha10 ай бұрын
I find it fascinating that Shonisaurus might have grown bigger than modern blue whales! Ben G. Thomas has a video about that species, in case you follow his chanenl.
@RXTRUX12 жыл бұрын
Getting really large is a deadly game, the slightest reduction in underlying biomass and you starve.
@audrey26582 жыл бұрын
I just gotta say i always greatly appreciate how you add actual scales to the hosts and the animals youre discussing. It seems more accurate and understandable than the gridded drawings.
@TheDinosaurus992 жыл бұрын
Wow what an interesting episode. Ivhthyosaurs were actually the first giant animals on earth!!!! Wow, that's a fun fact. Don't forgot to do evolutionary history of both tyrannosaurids, pinnipeds and also sea birds as well.
@donotreply89792 жыл бұрын
WOW WOW WOW WRITE NORMALLY PLEASE
@MerkhVision2 жыл бұрын
@@donotreply8979 their writing WAS normal, what are u talkin about
@hyunsung322 жыл бұрын
"It's a cymbospondylus! One of those large aquatic reptiles, the icthyosaurs...!" -Some british time-traveling wildlife man probably
@voyagerfromouterspace68292 жыл бұрын
I just realize you guys don’t have a dedicated Plesiosaur video, I hope you make one!
@rometotalwar123452 жыл бұрын
I miss you Steve, I hope you're ok
@DFloyd842 жыл бұрын
He's hiding from the colossal ichthyosaurs.
@eiruir2 жыл бұрын
"the rise of the giant ichthyosaurs began with a global ecological catastrophe" aw jeeze man I cant wait to see what new species come out of extinction in the Anthropocene ;-;
@ziumzium50492 жыл бұрын
Actually, it's quite wonderful to imagin what wonderful forms of life will come around after we finish making our upheaval in geological timescale. Even Premian-Triassic wasn't as destructive as we are. I guess humans can only wonder what mind-blownig creatures will emerge from our failures in a few million years. I personally root for cephalopods to become mangrove dwellers and then full-blown arboreals. The only way to save Earth from dolphin dominance xD
@TragoudistrosMPH2 жыл бұрын
Pigeon, sparrow, rat, roach, ant, or cat?
@enniomojica78122 жыл бұрын
I don’t know why but I feel a deep primordial fear of the deep water and seeing these creatures makes me shudder.
@dan2403932 жыл бұрын
That conodont caught me completely by surprise! It looks like a pop-art meme.
@nowhereman60192 жыл бұрын
Is returning to the sea just a requirement for animals to be huge?
@_rosmarino2 жыл бұрын
It does certainly help. They already have a strong bone structure to support their weight on land
@audrey26582 жыл бұрын
Im fairly certain it does. the lack of gravity in the water can help such massive beings move freely and swift enough to catch food.
@_rosmarino2 жыл бұрын
@@audrey2658 this explains why they are found in the ocean but does not explain why it's usually animals that evolve from land BACK to the sea like whales or ichthyosaurus did
@misspoppyseed39092 жыл бұрын
@@_rosmarino many animals return to the sea following mass extinction events due to an abundance of prey not found on land. By hunting in shallow waters for a long time they would eventually evolve more aquatic adaptions, which leads to deeper water hunting and more adaptions over time. Think of whales and cetaceans- the most likely reason is that the earliest whales, back when they were mammals, found an abundance of untapped prey in the seas which encouraged them back to the water. Over time they began to become more specialised for water hunting and living, and eventually grew into the animals we know today!
@leeleaman80572 жыл бұрын
What about an episode about where many fossils can be found? For anyone who wants to find something (: This episode is epic - Thank you Eons
@squidlord91102 жыл бұрын
i think most fossil deposits are like zones where you can't take home the fossils, but this is where i am from
@dalailarose15962 жыл бұрын
You can find fossils of trilobites in many places in the US, but the average person doesn't have the equipment or skill to locate, identify, & safely remove rarer fossils, & would risk damaging them, since a lot of information is in the rocks around the fossil.
@dalailarose15962 жыл бұрын
Your best bet might be to contact a team of archaeologists on a dig & ask to accompany them.
@mmseng22 жыл бұрын
Nice job on the subtle sound design on this one.
@daniell14832 жыл бұрын
Something I've always wondered is whether ichthyosaurs were ectothermic or endothermic. Fish obviously are cold-blooded but scientists think dinosaurs were endothermic or misothermic, and the archosaurs of today (crocodilians) are ectothermic. I guess this question extends to the other marine reptiles like mosasaurs and plesiosaurs.
@sailboat9082 жыл бұрын
Even with fish it's not so simple. Tuna are warm-blooded, for example.
@greva29042 жыл бұрын
Well they’re known as marine reptiles, not marine dinosaurs for a reason - they were reptiles and presumably cold blooded.
@TragoudistrosMPH2 жыл бұрын
Great whites are actually warm blooded too
@daniell14832 жыл бұрын
@@greva2904 But Birds are also reptiles and are warm-blooded. So being a reptile does not necessarily mean an animal is ectothermal.
@Ezullof2 жыл бұрын
@@greva2904 That's not really a relevant distinction. "reptile" aren't really a meaningful category, and it certainly isn't when it comes to body temperature. It's only really relevant when talking about the skeletal structure or reproduction.
@lukebrennan16582 жыл бұрын
Can you make a video about what determines whether plentiful resources leads to a high population vs larger body size?
@multiyapples2 жыл бұрын
Interesting and cool.
@alejandrojaramillouran37102 жыл бұрын
What about a video on the history of Andes formation?
@martingonzales11312 жыл бұрын
I like how you emphasized the name “fish lizards!” Like they gave it themselves millions of years ago.
@marquesbowden01302 жыл бұрын
I'm surprised Shonisaurus wasn't mentioned in this video. That being said, Icthyosaurs are cool marine reptiles
@Angry_Squirrel5552 жыл бұрын
It’s interesting to think that Ichthyosaurs lived closer temporally to the ancient Egyptians than the beginnings of the Triassic period.
@aaronmarks93662 жыл бұрын
That just blew my mind
@cameronjim29832 жыл бұрын
No expert on the matter, but it might’ve also had something to do w/ their means of reproduction. (Most) reptiles when they’re born are practically set and ready to go vs mammals who take longer to gestate the bigger they get and will need parental care and feed off milk. Of course, this is merely me guessing.
@miketalas79982 жыл бұрын
That last paragraph, about the Injuns Land was true, My Aunty Pearl who was one of the last children to have seen and grew up on or around the Old Hopi Ways. She told me, that her Uncle, would tell story's about the Dinosaur Foot Prints, there on the Hopi Land, ***That He Would*** "WRASTLE THE GREAT BEAST'S AND THROW THEM OFF THE RIVER BANK!!!" She said, because they were children, they believed, the Tall Tale, with Wide Eyed Wonder!!! :D
@Mai-sx3yf2 жыл бұрын
I love the passion in your voice! Makes learning entertaining.
@AskMia4112 жыл бұрын
3:05 That Conodont looks like it's seen some things!
@ArnoldTriyudho2 жыл бұрын
0:02 Is that a water lizard doggo..??
@macroplata51242 жыл бұрын
I would love a video about plesiosaurs etc aswell
@patrickmccurry15632 жыл бұрын
Now I wonder what and when the first giant soft bodied invertebrate was. Obviously not this big, but without hard parts I doubt we'd ever know or at least be certain we got the right ballpark.
@accessdenied3350 Жыл бұрын
Thank you for acknowledging the indigenous cultures
@sithlordbilly42062 жыл бұрын
Some of them in the video look like "Modified Dolphins" to me! 😲
@crazycain19842 жыл бұрын
The evolution of whales is so fascinating. My favorite of the Ancient species is Brygmophyseter aka the "Biting Sperm Whale" that lived with & even battled the famous Megladon around 50 million yrs ago
@golisopodgaming22012 жыл бұрын
dude you just unlocked a memory of an episode of "jurassoc fight club" haha
@crazycain19842 жыл бұрын
@@golisopodgaming2201 love jurassic fight club. Got the whole season on DVD
@markweidemann46412 жыл бұрын
Such a Great Vid!!! New Content is so well Presented!!!
@StefanVeenstra2 жыл бұрын
The biggest speedrunners.
@williamchamberlain22632 жыл бұрын
The speediest bigrunners.
@batlesbian2 жыл бұрын
So glad she's still on the channel, not sure why but i was worried she'd been replaced by the new girl (who's cool too ofc). She's my absolute favorite presenter on the channel! 🦕
@chubbrock6592 жыл бұрын
when I hear about evolutionary changes I picture the changes happening almost instantly, but I have to remember that it takes millions of years for these changes to occur.
@seventhson272 жыл бұрын
PEOPLE DON'T SEEM to appreciate just how long a million years is.
@devinbrooks1362 жыл бұрын
Dang, nice respectful message there to first nations, love it.