The Evolution of Squid

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  • čas přidán 26. 08. 2020
  • Molluscs are usually the simplest of creatures often not having blood vessels, sometimes even lacking a proper brain. But one group of animals challenges this, Squid and their other Cephalopod cousins, cuttlefish and octopus. Surviving multiple mass extinctions bouncing through the turmoil of the planets changing environments the cephlapods were shaped and warped from an often simple group of creatures into very advanced forms. Some incredibly alien to us like their multiple brains and limbs, while others were convergent evolution like their closed circulatory systems and camera style eyes. But always with a twist reminding us how distantly related these creatures are from us. Their story is the evolution of molluscs turning into super molluscs.
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    Some Art work has been altered for the purposes of bettering them for video format; these alterations were done independent from the artists who created the original work, so they are not responsible for any inaccuracies that could have occurred with the changes being made.
    Sources:
    www.ncbi.nlm.nih.gov/pmc/arti...
    www.researchgate.net/publicat...
    ocean.si.edu/ocean-life/inver...
    www.researchgate.net/publicat...
    www.paleo.pan.pl/people/Dzik/P...

Komentáře • 2,4K

  • @SpankinDaBagel
    @SpankinDaBagel Před 4 lety +5653

    That little dude in the thumbnail has a sweet hat.

  • @slothape
    @slothape Před 4 lety +2637

    That thumbnail looks like a squid pretending to be a shark to scare tourists

    • @charlesherzog778
      @charlesherzog778 Před 4 lety +24

      This comment made my day

    • @santaana2932
      @santaana2932 Před 4 lety +5

      terrorists

    • @Caun-88
      @Caun-88 Před 4 lety +21

      Not in frame: his bro with a GoPro ready to catch the epic prank for Cephalotube

    • @Nmethyltransferase
      @Nmethyltransferase Před 4 lety +2

      It's going to jump out of the water, start singing, and tell you to suck its tentacles.

    • @petorius7174
      @petorius7174 Před 4 lety +2

      Oh tell me about it

  • @bugjams
    @bugjams Před 3 lety +1792

    Ancient Squid: Too squishy, yet not intelligent enough to evade predators
    Evolution: *c o n e*

    • @MouseGoat
      @MouseGoat Před 3 lety +91

      well at least Evolution did not make them into more craps

    • @BisexualPlagueDoctor
      @BisexualPlagueDoctor Před 3 lety +39

      @@MouseGoat evolution does that a lot

    • @mornin7134
      @mornin7134 Před 3 lety +9

      plot twist they used it for stabbing innocent uh not innocent animals

    • @CheddarCubed
      @CheddarCubed Před 3 lety +11

      Octopuses are so squishy

    • @papayer
      @papayer Před 2 lety +1

      @@CheddarCubed smoosh

  • @jacopodelbo5122
    @jacopodelbo5122 Před 3 lety +1658

    Me: "Why am I always so tired?"
    Me at 3 am: "Mmh, s q u i d"

  • @nightshades7921
    @nightshades7921 Před 4 lety +669

    Never change Chambered Nautilis, I love you just like you are ^.^
    I really don't want Nautilis to go extinct. Please don't die friends.

    • @genericalfishtycoon3853
      @genericalfishtycoon3853 Před 3 lety +37

      That's an odd cabbage, well kind of anyways. You could say it's odd-ish.

    • @dianatari8359
      @dianatari8359 Před 3 lety +37

      Me too! They're so primitive and.. stunning

    • @kraillemccollaum4111
      @kraillemccollaum4111 Před 3 lety +65

      sadly they've become endangered due to overfishing for their shells, an unfortunate fate for such a unique animal

    • @marinacarricaburu5044
      @marinacarricaburu5044 Před 3 lety +7

      No dient to nautiluses! Save all sea animals!

    • @marinacarricaburu5044
      @marinacarricaburu5044 Před 3 lety +9

      @@kraillemccollaum4111 they wont die if we try to keep them alive

  • @1TakoyakiStore
    @1TakoyakiStore Před 4 lety +742

    I find it remarkable that Argonauts (a kind of octopus) make a brood nest out of a material that they secrete that bears a striking resemblance to the coiled shells of the nautilus and ammonites despite being made from completely different processes. It's like they wish they still had shells.

    • @santiagoruiz76
      @santiagoruiz76 Před 3 lety +90

      Thats really interesting, evolution has weird turns of events haha. In fact, after losing their shell octopus got smart enough to grab shells from other animals like clams and use them as portable shells. That use of tools shows how smart this animals really are.

    • @28_ranggaclio
      @28_ranggaclio Před 3 lety +8

      it's called convergent evolution

    • @1TakoyakiStore
      @1TakoyakiStore Před 3 lety +36

      @@28_ranggaclio Is it though? If it was convergent evolution they would be making a legitimate shell and not some disposable brood chamber. Maybe convergent in appearance only but not really in function.

    • @28_ranggaclio
      @28_ranggaclio Před 3 lety +5

      @@1TakoyakiStore hmmm, yeah. Maybe still ongoing evolution?

    • @1TakoyakiStore
      @1TakoyakiStore Před 3 lety +23

      @@28_ranggaclio I honestly don't know what it would be called? It would be like if humans lost their eyes through evolution but then millions of years later they had skin patches on the face that resembled painted on eyes. Useless as eyes but in an oddly similar place and appearance.

  • @beaversforlife1298
    @beaversforlife1298 Před 3 lety +656

    pick your hat shape:
    Cone
    Spiral
    Wizard hat
    Brain hat

  • @kinangeagle133
    @kinangeagle133 Před 3 lety +356

    I can imagine those living fossils telling modern squids the good old “back in my day the water was clean.”

    • @plant5875
      @plant5875 Před 3 lety +34

      back in my day we weren't eaten alive in china 👍

    • @brocolindo1
      @brocolindo1 Před 3 lety +2

      ikr

    • @thegodzillafandomsrookie5514
      @thegodzillafandomsrookie5514 Před 3 lety +9

      Back In my day we couldent change color
      But we could get fit by running!

    • @n.g.s1mple29
      @n.g.s1mple29 Před 3 lety +27

      @@plant5875 yeah, they got eaten alive by other animals instead.

    • @janpavel1441
      @janpavel1441 Před 3 lety +24

      @@plant5875 I'm pretty sure that wild animals are eaten alive everywhere in the world

  • @RumCaptain
    @RumCaptain Před 4 lety +3801

    Think about all the species that existed in the past that never fossilized.

    • @SorenPenrose
      @SorenPenrose Před 3 lety +447

      how am I supposed to think about them if we don't have the fossils to reference?

    • @plant5875
      @plant5875 Před 3 lety +209

      @@SorenPenrose squid

    • @Joe-dy7bb
      @Joe-dy7bb Před 3 lety +740

      Pour one out for the boys who never made it

    • @jordan_roadhouse4798
      @jordan_roadhouse4798 Před 3 lety +196

      @@SorenPenrose
      Ivar the boneless.

    • @madamada5750
      @madamada5750 Před 3 lety +10

      Bruh

  • @cord420247
    @cord420247 Před 3 lety +63

    Cephalopod: you ain’t as flexible as me bro
    Vertebrate: at least people will know I existed

  • @keithkyli
    @keithkyli Před 3 lety +299

    When he talked about cephalopods moving deeper to avoid conflict with fish, it came to my mind that some of them have evolved into the biggest invertebrates, only to be eaten by sperm whales - which are themselves an oddball for mammals, evolved from fish, returning to the ocean with a lot of detours.

    • @prestigev6131
      @prestigev6131 Před 3 lety +60

      You’d be surprised how often stuff like this happened in prehistory. Mammals evolved and lived in the shadows of dinosaurs and took over the planet after mass extinction wiped them out. However mammal ancestors called synapsids ruled the world before the dinosaurs and the dinos only took over after a mass extinction killed most of the synapsids

    • @Alfonso88279
      @Alfonso88279 Před 2 lety +2

      Go, mammals!

    • @jacobgoodstone7572
      @jacobgoodstone7572 Před rokem

      Sperm whales didn't evolve from fish, at least not directly.

    • @41052
      @41052 Před rokem +16

      @@prestigev6131 maybe when we die off birds will rule again

    • @gingergamer8204
      @gingergamer8204 Před rokem +21

      Cephalopods: heehee hoohoo the fish will never find us down here 😈
      Some land creature going back into the ocean: :)

  • @freddykingofturtles
    @freddykingofturtles Před 3 lety +102

    "But never again would they dominate"
    "Is that a challenge?!" -Ammonites, before the great ink war of 2021

  • @aquilinodominguez932
    @aquilinodominguez932 Před 4 lety +676

    Splatoon lore looking pretty deep.

  • @UlexiteTVStoneLexite
    @UlexiteTVStoneLexite Před 4 lety +497

    Hehe I love the word Siphuncle. I always think it's a hybrid of Simon and Garfunkel.

  • @Corium1
    @Corium1 Před rokem +40

    The Nautilus is such a fascinating animal. I looked into it more and apparently they were hunted. Their inner shells were used for pearl substitutes in the Renaissance. Makes me amazed to think they've managed to survive this long

    • @Naturalist501
      @Naturalist501 Před 8 měsíci

      because they live at the bottom of the ocean

    • @Naturalist501
      @Naturalist501 Před 8 měsíci

      because they live at the bottom of the sea

    • @Corium1
      @Corium1 Před 8 měsíci

      @@Naturalist501 Ah dang I was hoping they lived in their own dimension whenever ours is too boring

  • @hollowstarfire
    @hollowstarfire Před 3 lety +15

    6:03 ...... my brain just...... I can’t think of anything else but... 7 meter dunce cap... it would have maybe looked like a colorful, alive, 7 meter dunce cap. About 23 feet of dunce cap, like a big ol’ elf hat. The gnomes have found a king.

  • @KomodoMagic
    @KomodoMagic Před 4 lety +602

    Squids, also known as Cthulhu Cultist

    • @thomaszaccone3960
      @thomaszaccone3960 Před 4 lety +5

      ❤❤❤❤

    • @lemmingscanfly5
      @lemmingscanfly5 Před 4 lety +43

      I mean Cthulu is generally depicted as an Octopus slapped on the face of a giant Gargoyle.

    • @thomaszaccone3960
      @thomaszaccone3960 Před 4 lety +2

      @@lemmingscanfly5 czcams.com/video/e_STCenzr3Y/video.html

    • @Newbmann
      @Newbmann Před 4 lety +4

      And as we all know HP Lovecraft compared Africans to squids
      So take that as you will since this was right after WW1.

    • @thomaszaccone3960
      @thomaszaccone3960 Před 4 lety +46

      Lovecraft was a product of his age and place (as are most people) - Anglo-Saxon New England in the late 1800s and early 1900s.
      You can't expect him to think like a 21st Century American.
      I think he was more xenophobic than racist and it shows in his stories.
      He was accused of anti-Semitism but his wife was Jewish. But since racism is illogical, you can't expect racists to think logically on that subject.
      Despite all that he was a master of early science fiction and picturesque and descriptive English. I love reading his works

  • @PixelstarWASD
    @PixelstarWASD Před 4 lety +498

    How could you not mention ammonites 😱 they're more closely related to modern shelless cephalopods than to nautili

    • @andrewgan557
      @andrewgan557 Před 4 lety +54

      I think that will be an topic for another day.

    • @rasmusvanwerkhoven1962
      @rasmusvanwerkhoven1962 Před 4 lety +5

      Andrew Gan hopefully yes

    • @elliot_rat
      @elliot_rat Před 4 lety +17

      ammonites are so rare that we don't really have a lot of information on them

    • @andrewgan557
      @andrewgan557 Před 4 lety +45

      @@elliot_rat the whole animal that is. the shells on other hand were very common. so common they often use them as index fossils alongside trilobites.

    • @andrewgan557
      @andrewgan557 Před 3 lety +24

      @@ItsEthanDude ammonites were an wholly different family of cephalopods.

  • @TheSkullConfernece
    @TheSkullConfernece Před 2 lety +21

    There really is no end to how much mollusks amaze me. They truly are the most fascinating creatures that I have ever stumbled across.

  • @SuperMrHiggins
    @SuperMrHiggins Před 3 lety +40

    I for one, in showing due deference to our future squid overlords, am greatly appreciative of this video showcasing the evolutionary history of life's greatest achievement.

    • @bray2964
      @bray2964 Před 2 lety +7

      That sounds like something a squidman would say

    • @ChalkMuncher
      @ChalkMuncher Před 2 lety

      How long till there’s cults devoted to plotting the downfall of humanity via nuclear bombing Antarctica, making the ice caps melt which creates a massive tidal disturbance that wipes out humanity and surpluses ocean life while worshiping the squid overlords and listening to the heavenly melody

    • @Mars-dw2zc
      @Mars-dw2zc Před 2 lety +3

      egg on ur face if corvids end up being the uplifted ones

  • @lemmingscanfly5
    @lemmingscanfly5 Před 4 lety +153

    Pretty sure squids and octopus are closer related to things like ammonites than nautilus are.
    Nautilus are part of a further off slightly more primitive sub-family .

    • @jerk5959
      @jerk5959 Před 3 lety +4

      The man also referred to the horseshoe crap as a relative.

    • @juanjoyaborja.3054
      @juanjoyaborja.3054 Před 2 lety +7

      Yes. Squids, octopuses, cuttlefish, and ammonites are grouped together as Coleoids, while nautiloids are completely different.

    • @wolfbane4875
      @wolfbane4875 Před rokem

      @@jerk5959 Horseshoe crap

  • @tobiaschaparro2372
    @tobiaschaparro2372 Před 4 lety +411

    I think squids are a great argument for the existence of intelligent aliens.
    Like, if both snails and rats can become that smart in wildly different ways, who's to say aliens didnt do it as well

    • @JohnyG29
      @JohnyG29 Před 4 lety +6

      Well we'll never know.

    • @LimeyLassen
      @LimeyLassen Před 4 lety +56

      Cephalopods basically ARE intelligent aliens.

    • @florix7889
      @florix7889 Před 4 lety +31

      Well they are a long way from human level intelligence it took 400 million years to have the first civilisation so it's not that easy

    • @blondbraid7986
      @blondbraid7986 Před 4 lety +40

      @@florix7889 Not to mention that even if there have been intelligent civilizations on other planets, if they've developed millions of years apart from humans, what's to say they haven't already died off by the time humans discover their planet or their entire planet have been swallowed by a star or similar?

    • @animationspace8550
      @animationspace8550 Před 4 lety +27

      Intelligence needs collaboration, creativity, construction, and communication in order to form a civilization, as well as the idea and urge to make one. Octopi sort of follow some of these, but to a small level, hence why they don't have tribes. Plus they are hyper aggressive. Besides, it's mainly octopi that show intense brain features. There definitely is some sort of aliens out there with groups behaving like societies, but still not much in majority. If we want to collect messages from them as well, we'll need them to use similar radio technology as us, making another barrier to us talking to them. This is just my take on this. It could be changed by you guy's opinions. Also, it would be cool to uplift octopi into intelligence.

  • @ChalkMuncher
    @ChalkMuncher Před 2 lety +5

    Splatoon’s the only franchise that got me this fascinated by any kind of animal, real or fictional

  • @iwasadeum
    @iwasadeum Před 2 lety +22

    Mollusca is probably my favorite phylum of organisms. Incredible adaptability and intelligence, packaged together with a very short lifespan. The core layer of organisms that will most likely survive any extinction event in some for or another.
    Imagine if octopus could live to be 78 years old like humans. What would they look like and how would they act? Makes you wonder how each phylum would look like had they been chosen by evolution to perpetually evolve.

  • @dubbixdub4376
    @dubbixdub4376 Před 4 lety +251

    Squidward is very happy to see this video, he got to see his great grandparents:)

  • @geoffreystuttle8080
    @geoffreystuttle8080 Před 4 lety +109

    I wonder if animals with multiple brains can feel lonely.

    • @davidbecke9737
      @davidbecke9737 Před 4 lety +39

      Or get along with themselves?

    • @justinwalker5441
      @justinwalker5441 Před 4 lety +13

      Ask yourself you have 4 technically my friend

    • @quitlife9279
      @quitlife9279 Před 4 lety +9

      @@justinwalker5441 Which brain do i ask??

    • @plederfagella9774
      @plederfagella9774 Před 3 lety +12

      We have 2 brains but they are connected so we don't notice them as separate and we can be lonely so yes...

    • @albertbatfinder5240
      @albertbatfinder5240 Před 3 lety +3

      I’m in two minds about that

  • @tamasmihaly1
    @tamasmihaly1 Před 2 lety +5

    Happening upon this channel is like finding gold in an attic.

  • @harrietharlow9929
    @harrietharlow9929 Před 2 lety +12

    Cephalopods are fascinating. So alien yet a part of the life of our planet.

  • @SA-be1bn
    @SA-be1bn Před 4 lety +444

    Your channel is growing hella fast, as it should be.

    • @MigWith
      @MigWith Před 4 lety +6

      exactly.

    • @selfishbeats
      @selfishbeats Před 4 lety +10

      Exciting for a channel like this to do that.

    • @joaocaju3061
      @joaocaju3061 Před 4 lety +15

      Soon, it will too lose it's shell in favor of a more advanced body plan.

    • @Newbmann
      @Newbmann Před 4 lety +4

      @@joaocaju3061 soon it will conquer the land
      Wait snails THEY ALREADY SECRETLY HAVE

    • @SA-be1bn
      @SA-be1bn Před 4 lety

      @I say the Truth D':

  • @Atlasbr001
    @Atlasbr001 Před 4 lety +33

    Damn, ancient squids hd some wacky shells. really cool.

  • @muscovyducks
    @muscovyducks Před 3 lety +26

    pretty good as always. just a few corrections: horseshoe crabs (Ecdysyzoa) and cephalopods (Lophotrochozoa) are not close relatives, and the majority of squid locomotion is achieved via jetting water through their siphons, as opposed to beating their fins.

  • @pup1030
    @pup1030 Před 3 lety +16

    fun fact: nautiluses love chicken
    i'm not joking, chicken works incredibly well when trying to trap nautiluses

    • @johannageisel5390
      @johannageisel5390 Před 3 lety +5

      How do you prevent the chicken from drowning?
      And can it actually dive deep enough to catch the nautilus?

    • @pup1030
      @pup1030 Před 3 lety +6

      @@johannageisel5390 cooked chicken, i mean, sorry for not clarifying

    • @johannageisel5390
      @johannageisel5390 Před 3 lety +7

      @@pup1030 Lol, I was just messing with you, friend. :D

    • @megonggaga8046
      @megonggaga8046 Před 3 lety +1

      sea chicken

    • @midleno8364
      @midleno8364 Před 3 lety

      @@megonggaga8046 seacken

  • @--Paws--
    @--Paws-- Před 4 lety +63

    Interesting, snails, my freshwater snails can either float up or down to the bottom only. They cannot maintain floating without refilling their shells with air once they surface. Some can glide mid-water with the help of mucus, however.

    • @veralenora7368
      @veralenora7368 Před 3 lety +9

      You might enjoy zefrank1 and his video on snails. Also peacock spiders, ostriches, bobbit worms, others. Lots of true facts.

    • @--Paws--
      @--Paws-- Před 3 lety +1

      @@veralenora7368 That surfing snail was really unique.

    • @kamerad_marzuki3631
      @kamerad_marzuki3631 Před 3 lety +6

      They'll eventually evolve into Cephalopod-like creatures in the distant future, plus they have 4 tentacles that resemble cephalopods.

  • @alejandrorojas1423
    @alejandrorojas1423 Před 4 lety +478

    CZcams: HEY! HEY YOU! YOU WANT TO LEARN ABOUT THE ORIGINS OF SQUUUUIIIIIIDSSS?
    Me: *Sighs and rubs my face* ...Yes....😔

  • @baikia777
    @baikia777 Před 4 lety +7

    I wanna see someone create a movie/game based on a version of earth where cephalopod based organisms were the ones that pioneered to live out of the water and then dominate the land and air. That would be so cool.

    • @agenthellothere
      @agenthellothere Před 3 lety +3

      There is actually a game, Splatoon
      It takes places 12k years in the future where all mammals go extinct and sea animals evolve to go on land and obtain a humanoid form, while the main creatures are Inklings and Octolings. Inklings evolve from squid and Octolings evolve from octopi. Only in the second game are you able to play as an octoling though, with a DLC called Octo Expansion, where you're an octoling trying to escape from deep underground to the Promised Land (aka the surface)
      I feel like I've rambled on about the game bit too much now haha, sorry about that

    • @slucarios
      @slucarios Před 3 lety

      I can’t tell if the original comment was a joke or not, lol

    • @justsayori3046
      @justsayori3046 Před rokem +1

      @@agenthellothere Don't forget the bear who employs Inklings/octolings to hunt salmon in order to achieve his goal of returning mammals to the planet.

    • @agenthellothere
      @agenthellothere Před rokem

      @@justsayori3046 you fr made me look at a 2 year old comment of me missing a joke to understand the context of what you were replying to

  • @miri8851
    @miri8851 Před 3 lety +16

    I loved this video. Octopuses 🐙 cuttlefish and squids 🦑 are so interesting and cute!

    • @papayer
      @papayer Před 2 lety +1

      squishy bois

    • @Fl4mekit
      @Fl4mekit Před rokem +2

      fr they’re literally so adorable

  • @Batangbaito
    @Batangbaito Před 4 lety +40

    Can we just acknowledge how fun it is to say the word "Siphuncle"

  • @spamletspamley672
    @spamletspamley672 Před 4 lety +83

    Has anyone come up with a good explanation of how/why ammonites evolved to coil up neatly, but then produced loads of weird 'evolute' forms, in various degrees of uncoiling, and even opening out into three dimensions of of separated coils? Were they trying to gain more surface area to aid cooling, perhaps?

    • @skeleleleletons5869
      @skeleleleletons5869 Před 4 lety +19

      Used to be straight then...
      B O N K

    • @Tvtyrant2
      @Tvtyrant2 Před 4 lety +13

      I usually chock stupid body designs up to chase away theory. My guess is it differentiated mating.

    • @mykro3257
      @mykro3257 Před 3 lety +2

      3 dimensions that we know of. :)

    • @PLF...
      @PLF... Před 3 lety +9

      Thats not how evolution works... There is no "trying to". Its by natural selection, not design. Whatever variation occurs is selected from - those that work live, the ones that dont, die.
      How the variation occurs is related to how the shell is formed. A small, but consistent skew in growing the shell will result in coiling, the extent of which can be both two- or three-dimensional.

    • @dweebteambuilderjones7627
      @dweebteambuilderjones7627 Před 2 lety +6

      The weird shapes made vertical diving easier and more energy-efficient.

  • @Yemmybun
    @Yemmybun Před 3 lety +3

    squid: we have been swimming in this world for millions of years.
    human: *squids are bewitching aliens*
    squid: excuse me?

  • @CMZneu
    @CMZneu Před 3 lety +7

    Great video! You made me research a bunch of stuff out of curiosity, like how nautilus live, they are basically dumb scavenging floating snails that can barely swim, breed and grow slowly, almost the total opposite of other cephalopods. Makes sense how they survived the mass extinctions but not sure how they are not the perfect snack for other predators.

  • @derrickbonsell
    @derrickbonsell Před 4 lety +48

    Genome sequencing would be a great tool to uncover if cephalopods are related to these limpet-like creatures and perhaps could resolve which of these species groups they evolved from.

    • @muscovyducks
      @muscovyducks Před 3 lety +11

      You mean phylogenetics? The ancestors are long extinct and wouldn't have intact DNA, so genomics wouldn't help with that side of things.

    • @molybdaen11
      @molybdaen11 Před 3 lety +4

      There is a new method which used the remaining proteins to get a guess how the DNA may lokked like. Because DNA starts to decay after ~ 1,5 million jears. Proteins last way longer.

    • @stefanalexanderlungu1503
      @stefanalexanderlungu1503 Před 2 lety

      @@molybdaen11 Don't proteins also have a half-life of less than a million years?

    • @Titancameraman64
      @Titancameraman64 Před 9 měsíci

      ​@@stefanalexanderlungu1503depends on the protein keratin is in feathers and those have been found over 60 million ago the biggest problem with this if we don't understand how DNA influence traits yet.

  • @shl24yw89
    @shl24yw89 Před 4 lety +15

    Multiple brains, multiple hearts, blue blood. Swimming casually underwater on Earth.
    Human: There's alien on Mars!!!!

    • @carlosandleon
      @carlosandleon Před 4 lety +4

      just because it's strange doesn't mean it's alien. We even eat them all the time

    • @carlosandleon
      @carlosandleon Před 4 lety +2

      @moo moo we're all related though, ultimately

    • @carlosandleon
      @carlosandleon Před 4 lety +3

      @moo moo that's why it's called the tree of life, different branches, same trunk

  • @scibear9944
    @scibear9944 Před 3 lety +5

    Horseshoe crabs are arthropods. While they do use hemocyanin like the cephalopods, they are only extremely distantly related to molluscs, being in separate phyla. In other words, there is as much genetic distance between arthropods and molluscs as there is between molluscs and humans, possibly even more. Because of this, the fact that some molluscs and some arthropods use hemocyanin is likely a case of convergence.

  • @carrier2823
    @carrier2823 Před 3 lety +4

    This is an awesome display of how frequently convergent evolution can occur even in different environments! Awesome!

  • @danielc7964
    @danielc7964 Před 4 lety +73

    You had me fooled, I misread the title as "The Evolution of Squidward"

  • @nikitasouth7543
    @nikitasouth7543 Před 4 lety +78

    I've never thought about this, but this video is what I really needed

  • @FloozieOne
    @FloozieOne Před 3 lety +5

    Thanks for this great video. I fell into your site chasing another thread and am super glad I did. I have to agree with a few of the comments here about ammonites vs. squid vs. nautilus. I am looking up at a cut and polished fossil ammonite, (2 halves of the same animal), I have on a shelf above my desk. It is about 6" across and the divisions picked up copper while the spaces filled with agate. It is incredibly beautiful but I mention it because at first glance it looks much more like a nautilus with the divisions getting larger as the animal grew, but many creatures that make segmented shells do this, think whelks, periwinkles, etc. however there aren't any that can float like a nautilus and that must put the nautilus in a family of its own so it does seem that they are further apart in the evolutionary tree from a squid or an octopus and much closer to an ammonite. After all, a nautilus is a very very old creature that found a perfect shape and feeding behavior and decided it was going to stop there and not bother to evolve any further while the other cephalopods went gaily off to invent circulation and eyes and multiple brains.

  • @Zeed_316
    @Zeed_316 Před 2 lety +16

    I always found it fascinating and weird that cephalopods have so many traditionally vertebrate traits despite our last common ancestor with them having none of them. Camera-like eyes, closed circulatory system, up and down opening and closing jaws, highly developed brain. It's so strange finding such a similar set of traits convergently evolve in two otherwise very different groups of animals.

    • @mimisezlol
      @mimisezlol Před rokem +4

      So nice, nature made them twice!... Or more.

  • @Rarest26
    @Rarest26 Před 4 lety +6

    Primordial W O O M Y

  • @potsmokindino
    @potsmokindino Před 4 lety +110

    Did I just hear cephalopods have 3 “brains”? I know they have 3 hearts but I am unsure about the brain part. They do have donut shaped brains, where the esophagus travels straight through the space in the middle of the brain.

    • @solar0wind
      @solar0wind Před 4 lety +53

      They don't have three brains. It's more like one brain that isn't just in one place. They also have a huge part of their brain in their tentacles for example.

    • @Flowtail
      @Flowtail Před 3 lety +10

      Octopuses' bodies _are_ their brains

    • @garrettspelman9379
      @garrettspelman9379 Před 3 lety +5

      there are also two lobes behind the eyes.

    • @thesuperginge1348
      @thesuperginge1348 Před 3 lety +7

      In a similar way, you could argue that our central nervous system is "part of our brain", no?

    • @Vasharan
      @Vasharan Před 3 lety +8

      @@thesuperginge1348 It you separate the cortex, neocortex and cerebellum, it could be argued that humans have 3 brains. If you then subdivide the left and right halves being able to operate independently, connected by information highways like the corpus callossum, it could be said we have six.

  • @Garythebeaver
    @Garythebeaver Před 3 lety +6

    Discovered your channel recently and I'm really enjoying it. It's bite sized yet detailed zoology that I think anyone who doesn't understand evolution should watch. When you focus in on particular orders / families you can see how it all happened, the branching of lineages makes sense, that's even before you add the insurmountable genetic evidence.
    Keep up the good work!

  • @alinursayat3854
    @alinursayat3854 Před 3 lety +13

    Cephalopods are very fascinating, the way they have evolved from a completely different evolutionary tree of very passive and simple creations into an intelligent predator. Thank you for the content!
    P.S. I was here before 100 thousand subscribers)

  • @skyem5250
    @skyem5250 Před 4 lety +12

    Limpet ancestors had coiled shells like other snails which secondarily became flat. Some limpets even have an atavistic swirl at the top.

  • @pabloalonsogonzalezvillase2178

    Hey man, just wanted to tell you that your videos are incredible, among a lot of 2-3 minute videos of basic and sometimes incorrect information about prehistoric animal, your are definitely one of the most complete and interesting, in other words your videos rock!
    Keep the doing them bro, I really admire your work.

  • @kamerad_marzuki3631
    @kamerad_marzuki3631 Před 3 lety +24

    You should've use the footage of aquatic snail instead of land snail since they look more like cephalopods, and even some aquatic snails can even float their own like cephalopods did millions of years ago.

  • @PacoGarcia5
    @PacoGarcia5 Před 3 lety +4

    i love this channel. I found it a few days ago and thanks to it i've rediscovered my passion for paleonthology. Keep it going, you are doing an amazing job!!

  • @benderisgreat95able
    @benderisgreat95able Před 4 lety +21

    I wasn't sober upon reading the title, and foolishly thought it was a long-awaited video on The Evolution of Stupid.

    • @wilfdarr
      @wilfdarr Před 4 lety +3

      After millions of years of evolution stupid still exists in our species at far too high a rate to be an abnormality, so there must be some evolutionary explanation!
      Next video please!

    • @iamrazor9831
      @iamrazor9831 Před 4 lety

      @@wilfdarr hmmm you may be on to something. Stupid people tend to reproduce at higher rates but also their offspring have a change of not being as stupid as their parents so there's a net increase in intelligence over time? I think?
      Anyway if enough dumb people have smart kids eventually the smart people will improve society some what, enough for dumb people to reproduce more easily continuing the cycle?
      Lemme know if I'm wrong somewhere here with this idea

    • @wilfdarr
      @wilfdarr Před 3 lety

      @@iamrazor9831 Biologically I have no problem with it. Politically, it implies that authoritarianism is inevitable, the intelligent outliers necessarily leading the stupid majority. It would certainly explain some things... 😔

    • @benderisgreat95able
      @benderisgreat95able Před 3 lety +2

      @@wilfdarr the explanation is that natural selection doesn't apply to developed societies due to medicine and technology removing the need for finely tuned genetics over the course of centuries to millennia.

    • @wilfdarr
      @wilfdarr Před 3 lety

      @@benderisgreat95able I disagree: that's like saying ants don't evolve because they tend to their wounded and work as a hive. But hives that work better will out perform hives that don't, for both social AND biological reasons. Medicine etc certainly slows this process, but especially once you consider the constant waring up to the 20th century, I don't believe you're argument valid since societies that out perform other societies will force the underperforming societies into extinction. That isn't to say that this argument couldn't be valid going forward with globalization, I just don't believe it valid up to the present. And the evolution of a pseudo hive is I believe exactly what I AM RAZOR was talking about.

  • @repositoryforresponses4131
    @repositoryforresponses4131 Před 4 lety +13

    One of the channels I'll gladly watch ads for!

  • @VeronicaCawelti
    @VeronicaCawelti Před 3 lety +8

    I just spent a couple of hours watching your videos and, though I like in-depth learning, I have to say I truly enjoyed learning the snippets of info you provide. The problem with most documentaries is they are kind of stuck at the high school level. They leave out a lot. So by watching your videos I'm catching bits of information such things don't provide. You have a very happy new subscriber.

  • @Fiperyx
    @Fiperyx Před 2 lety +5

    2013: ay were Squids
    2021: *s q u i d g a m e*

  • @jasepoag8930
    @jasepoag8930 Před 4 lety +15

    I thought i had heard it the other way around, that limpets actually evolved FROM snails, and occasionally show a small amount of shell coiling.

    • @kamerad_marzuki3631
      @kamerad_marzuki3631 Před 3 lety +1

      Limpets are actually a snail with primitive organs compared to Caenogastropods and Pulmanotes which have a more advanced central nervous system.

  • @desiderata8811
    @desiderata8811 Před 4 lety +20

    I find amazing the independent development of eyes in different species.
    Evolution is astoundingly beautiful.

    • @aldoushuxley5953
      @aldoushuxley5953 Před 3 lety +8

      the differences between our eyes are also very interesting. We use color sensing cells to see colors for example.
      Cephaopods use their pupil shape to different between different colors (with refraction).
      Thats why the pupil shape of cuttlefish, and octopuses to a lesser extend, is so weird

    • @oldcowbb
      @oldcowbb Před rokem

      ​@@aldoushuxley5953 and they evolved the sensor cells with the proper orientation so they don't have a blind spot

  • @jacksuitor1853
    @jacksuitor1853 Před 3 lety +1

    I love cephalopods, and this was an amazing “documentary” on them! Thank you for the information on my favourite marine buddies

  • @w0ody16
    @w0ody16 Před 3 lety +5

    Fascinating video that was really well done. Keep it up!
    These digestible and interesting videos that explain evolution and how we get the species that we have today is really important since there are still many who don't have even a basic understanding of how in depth this evolutionary process has been studied and just what it means for explaining the world around us as well as ourselves!

  • @grigorios21
    @grigorios21 Před rokem +6

    My ancestors... I'm so proud

  • @moonclip9997
    @moonclip9997 Před rokem +5

    I always wonder how a creature would look if it was completely outside of every category of lifeforms we actually have, it intrigues me to imagine a creature evolving to be a completely new concept of life we never saw before, like, how would it's skin look? Would it be bumpy? Would it ever evolve fur? How would it's eyes look? Would it even have eyes? How would it swim? And something that intrigues me even more is to imagine how that creature would evolve in a planet like ours when life was just starting

  • @chilldude30
    @chilldude30 Před rokem +2

    I just love your videos. I'm addicted. I'm a lawyer and I otherwise would know nothing about biology and evolution. It's so fascinating, and I really feel like I appreciate the world and even my own life in a different and more profound and informed way from what ive learned in your videos

  • @josequiles7430
    @josequiles7430 Před rokem +3

    Do keep in mind that cuttlefish and squids do have a shell, but it's an internal one

  • @pajarillo2723
    @pajarillo2723 Před 3 lety +4

    I love these videos, your content is of unbelievably high quality. You deserve many more subscribers. Keep it up.

  • @kamerad_marzuki3631
    @kamerad_marzuki3631 Před 3 lety +6

    4:25 The gastropods chilling on the seabed while their cousins ​​swim around.

  • @CriticalPosthumanism
    @CriticalPosthumanism Před 3 lety +1

    I just found this channel and I love it.
    It's interesting but also chill to listen to you.
    Subscribed!

  • @pr.tercer.gs.9934
    @pr.tercer.gs.9934 Před 3 lety +1

    loved this! binge watching this channel for sure. great content!

  • @indicus9075
    @indicus9075 Před 3 lety +7

    “The reason why more cephalapods decided to coil their shells was because coiled shells looked way cooler to them”

  • @buttermymuffin4396
    @buttermymuffin4396 Před 2 lety +3

    I wish I found this channel when I was doing my first year in zoology. Would have made learning so much easier

  • @boog_4579
    @boog_4579 Před 3 lety +2

    i really enjoy this type of content, taught me a lot i didn’t know

  • @kaiden7063
    @kaiden7063 Před 3 lety +2

    love watching your channel grow

  • @Juno_Kujo
    @Juno_Kujo Před 3 lety +21

    Then they turned into kids who are allergic to water and can turn into a squid that swims in ink.

    • @slucarios
      @slucarios Před 3 lety +2

      But they do have some really good music

    • @sleeeepyy_
      @sleeeepyy_ Před 2 lety

      their music taste was fire though

  • @abandoningbeforeban
    @abandoningbeforeban Před rokem +3

    for their next evolution - inklings and octolings

  • @DriverNeku
    @DriverNeku Před 3 lety +2

    I feel like squidward and Splatoon fans would like this.

  • @helmutzollner5496
    @helmutzollner5496 Před 2 lety

    This is an excellent documentary. Very well research and beautifully put together. Thank you for sharing.

  • @kaminaalbarn
    @kaminaalbarn Před 3 lety +4

    What lovely creatures! They really went their own way evolutionarily

  • @rachelevil
    @rachelevil Před 4 lety +3

    Plectronoceras' little wizard hat shell always amuses me

  • @lewis838
    @lewis838 Před 3 lety

    this channel is an absolute gem, so glad i found this

  • @johtojedi5328
    @johtojedi5328 Před 3 lety +2

    Admit it. We all learned the word "cephalopod" from playing Splatoon.

  • @Drakonus_
    @Drakonus_ Před 3 lety +8

    "YOU SHALL NOT PASS!!!"
    -Tiny lil' dude in the thumbnail

  • @matthew_thefallen
    @matthew_thefallen Před 4 lety +17

    Have you ever heard of an Argonaut? It's like a nautilus but it's an octopus like creature. It's scientific name is Argonauta Linnaeus. Really cool critter!

    • @pedroquinellatodantas9669
      @pedroquinellatodantas9669 Před 4 lety +8

      The way the Argonauts shell is made is totally different than the shell in other molluscs, the female Argonaut uses her arms to create it, while other molluscs use their body skin (sorry I dont know the name of the body skin in English, Im brazilian and in Portuguese we call "manto")

    • @incanusolorin2607
      @incanusolorin2607 Před 4 lety

      Pedro Quinellato Dantas Pra mim body skin chamava pele mesmo rs

    • @ambulocetusnatans
      @ambulocetusnatans Před 4 lety +1

      Thanks; never heard of them. Going to Wikipedia now.

    • @pedroquinellatodantas9669
      @pedroquinellatodantas9669 Před 3 lety

      @@incanusolorin2607 eu falei body skin justamente pq n sabia o nome específico em inglês kkkkkk mas o nome da "pele" dos moluscos é manto

    • @dweebteambuilderjones7627
      @dweebteambuilderjones7627 Před 2 lety

      @@pedroquinellatodantas9669 The English word is "mantle".

  • @DisPlot
    @DisPlot Před rokem +2

    according to the splatoon universe,squids started to live on land

  • @intellectualiconoclasm3264

    I enjoy this video of yours so much Income back to view it every several months.

  • @liamaldrich2476
    @liamaldrich2476 Před 3 lety +3

    I really just watched a video called "the evolution of a squid" voluntarily. I feel old.

  • @pac1fic055
    @pac1fic055 Před 3 lety +7

    This is heavy duty content. Here’s a hemocyanine filled heart 💙

  • @samhaines8228
    @samhaines8228 Před 3 lety +1

    just brilliant! deeply fascinated by the cephalopod development, especially as relating to biological implementation of functional amendments as an interplay with the chemistry of enviroment

  • @koriw1701
    @koriw1701 Před 3 lety

    Outstanding! I accidentally stumbled upon one of your videos and then your channel. After watching this one in particular, I immediately subscribed and hit 'all notifications' because I found your presentation so engaging; it wasn't so technical as to prevent my keep following the subject matter so thatt I would lose interest, but it was also intelligent enough to keep my interest and make me come back for more. Thank you for your great videos. I'll be back --- a LOT!

  • @angrykrabs9968
    @angrykrabs9968 Před 3 lety +8

    When i was a kid i always wanted to be a squid, idk why.

  • @Alexs23743
    @Alexs23743 Před 2 lety +3

    This video in a nutshell: Apparently, Nintendo's Splatoon franchise is real, and squids and humans have a surprising amount of stuff in common. Woomy. D:

  • @HenrythePaleoGuy
    @HenrythePaleoGuy Před 3 lety +2

    Congratulations on your channel doing so well! Great video. :)

  • @ellasubbotina
    @ellasubbotina Před 3 lety +1

    I'm so happy for having this channel in recomendations. Reminds me of good old days, when I loved tv programms about biological history))

  • @DJ-0
    @DJ-0 Před rokem +6

    i wish squids were real :(

  • @skinofseal
    @skinofseal Před rokem +6

    SPLATOON LORE DROP ‼️‼️

  • @BenTheBeanYT
    @BenTheBeanYT Před 3 lety +2

    Honestly I love this one animal at a time approach to evolution!

  • @tobsmonster2
    @tobsmonster2 Před 3 lety

    Great presentation, very informative. Thank you