What Caused The Cambrian Explosion?

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  • Опубликовано: 23 янв 2025

Комментарии • 1,6 тыс.

  • @SoraHjort
    @SoraHjort Год назад +2659

    Gez, betterhelp is really trying to do a redemption tour/history sweeping with all these sponsorships on various channels after the stuff that went down a couple years back when they got caught mishandling patient info and unqualified professionals they hired. Selling patient info to various people should have destroyed the company... I mean when you get the FTC going after over it, you know you've screwed up.

    • @thecianinator
      @thecianinator Год назад

      They're just doing what NordVPN did after they leaked every single one of their usernames and passwords: doubling down on advertising and hoping people forget.

    • @rockstdy2154
      @rockstdy2154 Год назад

      www.ftc.gov/business-guidance/blog/2023/03/ftc-says-online-counseling-service-betterhelp-pushed-people-handing-over-health-information-broke

    • @theo6741
      @theo6741 Год назад +384

      Also monopolized/corporatized mental health treatment sounds ominous

    • @carterrrrrrr
      @carterrrrrrr Год назад +186

      @@theo6741 i mean thats the america we live in lol
      pov private healthcare

    • @antoniohorta5656
      @antoniohorta5656 Год назад +22

      Hope you like the content, negative Nancy

  • @jasperdragon00
    @jasperdragon00 Год назад +969

    glad your channel is getting sponsored, but i must remind people that betterhelp does not have the best practices and they have mishandled medical data as well as hired therapists without qualifications that have severely mistreated patients. just want people to stay safe

    • @tamarausher60
      @tamarausher60 Год назад +11

      There are channels sponsored by whisky, Coca cola, sigaretts and medicinal drugs. By military- industrial consortiums and by countries with dictatorship type of government.. so always we are at risk, and that are we who need to have some common sense and dont criticize such a very good channel that need be sponsored to continue making this superb content.

    • @KenikoB
      @KenikoB Год назад +49

      ​@@tamarausher60 Yeah and those suck too
      also the way sponsors work is that the company will stop sponsoring a channel that doesn't get them any business. comments like these are to make sure the people watching don't go use the service just because they see it on this channel.

    • @NathalieCwiekSwiercz
      @NathalieCwiekSwiercz Год назад

      ​@@tamarausher60first of all, the VAST majority of people knows that alcohol and tobacco is dangerous. But with companies like better help that's not the case, (and it's really serious what they have done) especially when it comes to subscribers/users with disabilities or mental illness and such, they can be very trusting and easy to take advantage of, wich better help does and they have done A LOT more than that.
      Its disgusting.
      And listen, this channel has over 50000 subscribers and they have a few other channels with even more, this isn't one or two persons doing all this hard work on their own, this is more or less a company/business, so no, they do NOT "need" sponsors. They choose to have sponsors.
      And they are ABSOLUTELY at fault for chosing money over their subscriber's health and wellbeing. Betterhelp has done disgusting stuff, inexcusable stuff, and people know this, especially those who choose to work with them like this channel, you always look into your sponsors, especially channels as big as this, and they still choose to support them, that's disgusting.
      Don't put RUclips channels on a pedestal, even if you enjoy their content, do your research always and please dont support behavior like this, call it out, that's how people grow and this world gets better

    • @OneVoiceMore
      @OneVoiceMore Год назад +3

      The video itself is mishandling information, so it seems thematic.

    • @0Logan05
      @0Logan05 Год назад

      Fitting..Pseudo intellectual Sponsorship for a channel pushing Satanic Theories as Fact.
      This is the great deception..Lies lies and more lies to cover Reality.

  • @SenorTucano
    @SenorTucano Год назад +470

    A change in ocean chemistry may have played a significant role in the Cambrian explosion. A gradual change from acid to alkaline would have permitted calcareous exoskeletons to evolve.

    • @alexcontreras6103
      @alexcontreras6103 Год назад +10

      true

    • @o1-preview
      @o1-preview Год назад +18

      that's how particle life works, I think we kinda solved where we came from to be honest.

    • @PartyMusic775
      @PartyMusic775 Год назад

      If you mean primordial soup, every scientific experiment and test to try to validate the theory has failed,
      @@o1-preview

    • @travisa.992
      @travisa.992 Год назад +34

      More likely that this just means the amount of fossilization changed, while the actual animal abundance was more or less the same.

    • @BeckBeckGo
      @BeckBeckGo Год назад +5

      This makes sense! I keep a coral fish tank and I have some marine snails in there. And I have to watch the pH (lots of factors but definitely pH) very carefully

  • @Oberon4278
    @Oberon4278 Год назад +581

    My favorite part of RUclips is how they time ads perfectly for when I'm almost but not quite asleep.

    • @patrickwatrin5093
      @patrickwatrin5093 Год назад +31

      Absolutely maddening

    • @shortbusbully
      @shortbusbully Год назад +83

      And they are 10 decibels louder than the video

    • @dr.briandecker496
      @dr.briandecker496 Год назад +39

      This is like the main reason I pay for premium. Was ruining my favorite way to fall asleep

    • @iainballas
      @iainballas Год назад

      @@dr.briandecker496 Had to pay for it... I use it for a lot of background music in DnD games, and adblock got too unreliable. I hope most stay strong though./

    • @Mooondoggy
      @Mooondoggy 11 месяцев назад +22

      Sponsorblock + DeArrow have changed my life and save me 13 quid a month

  • @PaleoEdits
    @PaleoEdits Год назад +177

    Finally! My favourite earth-history channel returns!
    Edit: wonderful job, loved it. Very thoroughly presented, with some cool metaphors.

  • @erictaylor5462
    @erictaylor5462 Год назад +103

    One thing to keep in mind, a "moment" in the geologic timescale could be 10's of millions of years.

    • @lobban2
      @lobban2 7 месяцев назад +4

      That's true. We're talking many thousands of generations at the very least.

    • @ginnygin7141
      @ginnygin7141 2 месяца назад +1

      A moment is relative when billions of years are the timeframe

  • @HGGundamPlays
    @HGGundamPlays Год назад +127

    One of the theories I've heard that I like to explain the Cambrian Explosion is the ending of one of the many Snowball Earth era's, all the extra mineral material being washed into the oceans gave life a much more diverse chemical and mineral soup to evolve from.

    • @alexcontreras6103
      @alexcontreras6103 Год назад +5

      interesting

    • @moneyandtimefreedom3352
      @moneyandtimefreedom3352 Год назад +5

      Would this have happened as asteroids hit earth bringing new life along with new food available for life in the form of new chemistry or minerals? Making it available to these organisms and emerging life forms ?

    • @TheGuyCalledX
      @TheGuyCalledX Год назад +21

      ​@@moneyandtimefreedom3352panspermia is possible, but would likely have happened much earlier. All life discovered today shares a couple hundred genes which point to a bacteria-like single-celled ancestor -- LUCA

    • @Kevin-jb2pv
      @Kevin-jb2pv 10 месяцев назад +2

      I see the Cambrian explosion more like when a procedurally generated game like Minecraft or Dwarf Fortress makes a new world and starts throwing pure RNG at the wall to see what sticks and then starts weeding out the mistakes.

    • @OneVoiceMore
      @OneVoiceMore 8 месяцев назад +1

      LOL

  • @popman48
    @popman48 Год назад +25

    Leila, Pete, and David, this series is, in my opinion, the best series on RUclips. From research/writing, to editing, to presentation, it is absolutely top notch. I watch a lot of content on RUclips and some of it is well done, but none as good, in total, as what you do. Just Wow! Thank you for the hours and hours of work that go into each episode. I learn so much from each one. I wish everyone had the luxury of time to experience these gems.

  • @gabbyn978
    @gabbyn978 Год назад +199

    I once read a biography about Wallace. In that book, it was said that Wallace (who gave the Wallace Line its name) contacted Charles Darwin, in order to discuss his own findings. Whithin the correspondence, he asked Darwin to publish their common idea in his book, as Wallace had the feeling he was not confident enough and would not be able to deal with the backlash that such a thesis would cause. So there was no competition at all, Wallace simply left this task to Darwin.

    • @llanitedave
      @llanitedave Год назад +100

      It's true that Darwin thought Wallace deserved more credit for the theory than he ever claimed. He wrote to him “You are the only man I ever heard of who persistently does himself an injustice & never demands justice” (14 April 1869). But Wallace recognized that Darwin's work on the theory not only predated his own, but explored it in much greater depth than Wallace had ever envisioned. Wallace mostly claimed credit for being the impetus that pushed Darwin into the action of actually publishing his long-delayed book. Later, Darwin and Wallace corresponded extensively and shared their ideas freely, each helping influence the evolution of the other's evolutionary ideas, even though those became increasingly divergent over time.

    • @SmartWentCrazy.
      @SmartWentCrazy. Год назад +25

      ⁠​⁠​⁠@@llanitedaveWow, that is rather heart warming.
      Also, It’s a little bit ironic because survival of the fittest if (crudely) “applied” to the scenario would predict a far more adversarial approach to their respective academic contributions.

    • @llanitedave
      @llanitedave Год назад +39

      @@SmartWentCrazy. If crudely applied, perhaps. But the concept of "fitness" actually allows for a lot of finesse in the real word. A feature or behavior that is "fit" depends greatly on the local context in the current environment. Big, strong, and confrontational is not always the most successful combination. In humans, reproductive success involves the skill of maintaining interpersonal relationships and cultivating cooperating peers and allies. That quality also has a bonus when it comes to sustaining a civilization.

    • @robotboy719
      @robotboy719 Год назад +21

      @@llanitedave All true and it raises an essential about why Darwin was able to develop the theory to greater depth. Put simply, Darwin was a rich gentleman, a member of the ruling class, and Wallace was a working stiff. While Darwin was able to muse in his garden for years, Wallace was in the hot zone trying to make money. In fact, it was only being knocked out for months with a tropical fever that allowed him to put the paper together that shocked Darwin into action. Wallace and Darwin understood that if Wallace came forward as the promoter of the theory, he could quite easily be dismissed, ridiculed, ignored. Whereas Darwin was well-connected with the scientific establishment and would at least get a hearing.

    • @llanitedave
      @llanitedave Год назад +14

      @@robotboy719 That's partly true. Darwin, as a member of the upper class, had a certain amount of credibility from the start. But for the most part, the credibility was hard-won. Darwin's grandfather Erasmus was also a member of the upper class, wrote on many issues, and even had an idea that species might be changeable. But none of his musings got any traction, primarily because in addition to being upper class, he was thought to be a bit of a flake. So even then, there was more to credibility than class. Darwin was already a famous and respected naturalist before Wallace even entered the field, his voyage on the Beagle was already the stuff of legend, and his expertise and scholarship was well-known. The fact that Wallace was a relatively unknown quantity was not merely because of his more humble origins, but simply because he had less experience and less of a track record than Darwin did, a fact which he readily acknowledged. It's true that Wallace's reputation rose greatly because Darwin was his mentor, and its true that Wallace's version of the theory would have gotten very little attention had it not been for Darwin. But it's also true that Darwin's work was far more developed, broader, deeper, more well referenced, and had a much larger store of data backing it up. Wallace's insight was amazing, original, and mostly correct, but it's not unfair to say that Darwin's theory was already largely complete before Wallace wrote him about it, and deserved primary credit.

  • @AldrinAlbano
    @AldrinAlbano Год назад +120

    This episode was a 'Tour de Force" to explain our current understanding of the Cambrian Explosion [of life] on Earth. Worth every minute of my Christmas Holiday vacation. Thank you so much!!

    • @adrian_6693
      @adrian_6693 Год назад +1

      dong dong dong dong 🎉🎉🎉🎉
      happy holidays🤗
      ayaw kol😂

    • @gerardjones7881
      @gerardjones7881 11 месяцев назад

      A good therapist doesn't give advice or try to run anyone's life.
      Anyone who does that is playing god.

    • @christianhoffman7407
      @christianhoffman7407 11 месяцев назад +1

      @@gerardjones7881 What are you talking about? Are you ok?

    • @user-qu5nw1ss2w
      @user-qu5nw1ss2w 11 месяцев назад

      ​@christianhoffman7407 i think they meant to reply to a completely different comment about the sponsor 😂

  • @kenwarner
    @kenwarner 11 месяцев назад +10

    Can't help but feel such a deep gratitude to the minds who figured all this out, and also to the creators of this video for their detailed presentation, made available on RUclips for free. What a time to be alive!

  • @j.campbell4497
    @j.campbell4497 Год назад +72

    Just amazing how you consistently turn out the highest quality content on RUclips. Thank You!

    • @simonmasters3295
      @simonmasters3295 11 месяцев назад +2

      Not the highest, just some nice pictures and a soft voice. Listen to what is being said and it is not 100% top notch, nor fast paced, authoritive or gritty enough to eliminate the "maybe it happened this way, we don't really know" voice. We know. We know earth was a snowball just before and then eukaryotic life "exploded"... plus hard exoskeletons remember? Perhaps the key is in the evidence that survives. Has exoskeleton chemistry received enough attention?

    • @gaminawulfsdottir3253
      @gaminawulfsdottir3253 11 месяцев назад +2

      @@simonmasters3295 I would add that the nice pictures cannot be trusted. at 12:29 they misrepresent an African antelope (and a background that is obviously African, not North American) as an American pronghorn antelope.

    • @zachlaabs5257
      @zachlaabs5257 11 месяцев назад

      ​@@simonmasters3295yeah but I mean dudes churning out multiple free documentaries a month that are high quality and very interesting. He really is one of the best channels right now!

    • @kittypencils4463
      @kittypencils4463 10 месяцев назад

      @@simonmasters3295Then what is the highest?

  • @MrBucidart
    @MrBucidart Год назад +32

    Thank you, Leila Battison and the crew for the video. By far the best series on the tube.

    • @ominous-omnipresent-they
      @ominous-omnipresent-they 8 месяцев назад

      Nah, that would be AronRa's comprehensive _Systematic Classification of Life_ series.

  • @Malconeous
    @Malconeous Год назад +76

    I would say the diversification and phylogenetic placement of the Ediacaran biota is a greater mystery, but I'm still grateful for this video

    • @bmolitor615
      @bmolitor615 Год назад +19

      As soon as I heard about the Ediacaran, my main thought was along the lines of "Whoooa, look, The Original Slime Layer figured out how to coordinate and communicate between cells such that now we've got attractive non-random tissue-like growth patterns! Kids, the world is your oyster, what are you going to do with TISSUES?" And indeed, the Cambrians [etc.] went nuts with this great idea…

    • @Ashitaka-gx2od
      @Ashitaka-gx2od Год назад +21

      The two mysterious are really closely related, so much so they almost can't be discussed separately. Most of the Ediacaran biota can't be related later Cambrian biota, so either most Ediacaran forms died out with no descendants, and complex animal life appeared twice, or there is a lot of missing fossils that bridge the gap between Cambrian and Ediacaran forms. Likely there is a mixture of the two at play. This is not to mention that a lot of cambrian forms are hard to place in the animal family tree as well.

    • @Malconeous
      @Malconeous Год назад +9

      @@Ashitaka-gx2od they're not exactly related they occured at different times under vastly different conditions. The only relation is that in some unknown way, the Ediacaran influenced the setting of the stage for the Cambrian. Geologically and Biologically they are extremely alien to eachother.

    • @theoldman5896
      @theoldman5896 Год назад

      @Malconeous Given that they both "dovetailed" off of the nearly billion-year-long Proterozoic era of single-celled organisms is worth noting at least. It's weird. Especially since multicellularity took so long to "evolve" normally, for it to just happen twice in geologically quick succession is suspicious (unless they're related, or, as you put it, one created the conditions needed for the other)
      One "could" argue that humans created the conditions for AI to spontaniously "evolve," so say in millions of years from now, it would be nessesary to study "ancient humans" AND "AI" together to fully grasp the situation, even though, technically, AI didn't evolve "from" us directly. We'd still be related subjects.

    • @dosadnizub
      @dosadnizub Год назад +5

      There was a whole episode dedicated to ediacran, it was really nice

  • @AnidHarker
    @AnidHarker Год назад +11

    Throwing confetti at the news that this will finally be up in just a bit longer after waiting for so long for it. Thank you, team!

  • @Headtalk
    @Headtalk Год назад +15

    It makes so happy to see someone else also compare literally everything to how matter seems to go through cycles of building micro-structures which then become pieces in more complex structures which then become the small pieces in even more complex stuff.

    • @tyranmcgrathmnkklkl
      @tyranmcgrathmnkklkl Год назад

      Which includes us, the human, right? We're all part of something

    • @tommym8trix
      @tommym8trix Год назад

      It's why there is almost certainly life on other planets

    • @lemonstealinghorsdoeuvre
      @lemonstealinghorsdoeuvre 11 месяцев назад

      Not literally everything. There is a theory nobody seems to have come up with, one that I think is obvious, but I have yet to publish. I end up watching most docs like this, all published papers, and attempt to hear as many lectures as I can find, just to make sure I don't get beaten to the punch.

  • @journeythroughearthshistor5600
    @journeythroughearthshistor5600 Год назад +62

    "It's the Cambrian Explosion!"
    - Bill Wurtz

    • @laleluna8053
      @laleluna8053 11 месяцев назад +9

      "Wow, that's animals n stuff"

    • @levitateme
      @levitateme 10 месяцев назад +2

      now that 6 second jingle is gonna be in my head all day, along with the lasor thing.

    • @CallMeMimi27
      @CallMeMimi27 4 месяца назад

      but we are still in the water! can we go on land?
      N O
      why?
      T H E S U N I S A D E A D L Y L A S E R

    • @-KingGanon
      @-KingGanon 4 месяца назад +1

      @@CallMeMimi27not anymore there’s a blanket

    • @Sagan-yw8ji
      @Sagan-yw8ji 3 месяца назад

      @@-KingGanon Now the animals can go on land! Come on animals, let's go on land!

  • @nikolasaev
    @nikolasaev Год назад +7

    It os great that even though there are two additional channels already, you still continue to tell the History of the Earth. I was so waiting for another episode! Amazing one!

  • @erikm8372
    @erikm8372 Год назад +56

    12:30 -FYI, this antelope is a type of African hartebeest (not sure the exact species or subspecies). They’re members of the genus _Alcelaphus_ in family Bovidae (cattle, antelope, sheep, goats); American pronghorn belong to the family Antilocapridae, of which they are the only surviving members. Their nearest relatives are giraffes and okapi. 😊 hehe

    • @scottydu81
      @scottydu81 Год назад +6

      Do they like ear scritches and belly rubs?

    • @kellyharrison5184
      @kellyharrison5184 Год назад +7

      I noticed that, too. A minor mistake, but worth mentioning.

    • @SortaLost11
      @SortaLost11 2 месяца назад

      @@scottydu81they are the fastest land mammal in North America. They would be about a quarter mile away before you blink if you try to pet one. But they are very cute.

    • @scottydu81
      @scottydu81 2 месяца назад

      @@SortaLost11 I wanna pet one!

    • @JamesBohlscheid
      @JamesBohlscheid Месяц назад +1

      That's what I came here to say.... Sloppy that.

  • @neongreenon
    @neongreenon Год назад +50

    I love your channel, but I wish the sound was more smooth~ like the music in between thoughts/sentences is always so much louder than the narration.

    • @Just.A.T-Rex
      @Just.A.T-Rex 7 месяцев назад +6

      Use the stable volume option in settings (gear icon at top)>additional settings>stable volume on/off

    • @The_InfantMalePollockFrancis
      @The_InfantMalePollockFrancis 7 месяцев назад +2

      I love your channel but I wish you wouldn't use commas before conjunctions, unnecessary punctuation such as a tilde and use an -er comparative with a single syllable adjective instead of using "more" like why did you say "more smooth" instead of smoother yet you used "louder"

    • @araceli2827
      @araceli2827 6 месяцев назад +4

      ​@@The_InfantMalePollockFrancis you know that maybe that person is not English native speaker? (Like me) You can correct people without being that salty

    • @araceli2827
      @araceli2827 6 месяцев назад +1

      ​@@Just.A.T-Rex Thank you, I didn't know this was an option. But it deactivates 😢

    • @KosmiekAltertainment
      @KosmiekAltertainment 5 месяцев назад +2

      i have to agree. These topics deserve a little more peace and quiet, the music is just a bit too present at times.

  • @RootsMj
    @RootsMj Год назад +29

    You made geology very, very interesting. You, good sir, have a super power and I'm happy to be able to experience it. Thank you!

    • @Mikelaxo
      @Mikelaxo Год назад

      Geology had always been very very interesting, what are your talking about?

  • @powerforu94
    @powerforu94 Год назад +11

    I've been waiting for this ever since I found this channel more than an year ago!!
    Great early Christmas gift from you guys!

  • @Wandering_Chemist
    @Wandering_Chemist Год назад +46

    I was the one who kept bothering yall for a new episode of History of the Earth for what 6 months now? And gentlemen, you made the wait worth it more than you could ever know! I fucking love this series. Thank you 🙏 and hope you enjoy your holidays cheers 🍻

    • @characterblub2.0
      @characterblub2.0 Год назад +3

      I honestly wondered if they dropped it with all the other channels going on 😂

    • @Wandering_Chemist
      @Wandering_Chemist Год назад +2

      @@characterblub2.0 trust me dude…so did I lol that’s why every community post I would just post asking about this channel lol 😂

    • @maidatenpulamea
      @maidatenpulamea Год назад +2

      1:33 hours of video and 95% of it is trash. Either it's the same information available anywhere on youtube (but in a much more concise form) or the narrator just goes on and on with endless questions. In conclusion, a pointless video, neither showing the history and the plethora of theories about the cambrian explosion nor anything new about it.

    • @Just.A.T-Rex
      @Just.A.T-Rex 7 месяцев назад

      I made the one posted after this happen. Gang gang

    • @Just.A.T-Rex
      @Just.A.T-Rex 7 месяцев назад

      DEFINES A MOLLUSCS

  • @aaronwimmers8904
    @aaronwimmers8904 Год назад +17

    Your videos never fail to fascinate and educate. Thank you for these.

  • @solitudessilentgroove
    @solitudessilentgroove Год назад +133

    Constructive criticism on audio edits - I often fall asleep listening to RUclips. When the narrator has a nice voice it helps me sleep. This narrator is perfect, but the music edits that go up in volume in-between his words is very distracting and even wakes me from sleep. I suggest just leaving the music volume steady and not making it go up and down with the talking. Thanks for awesome content.

    • @keirawillow
      @keirawillow Год назад +14

      I noticed this too, I wonder if its a new editor because the weird subheadings at the bottom left of the screen are new too.

    • @voidisyinyangvoidisyinyang885
      @voidisyinyangvoidisyinyang885 Год назад +3

      try 2xing the vid - the music become more interesting and the voice less boring.

    • @MalcolmSnelgrove
      @MalcolmSnelgrove Год назад +13

      The music seems more noticeable and wildy disjointed in this video compared to previous ones. I also listen often when falling asleep (no ads with subscription) and end up listen to each video many times.

    • @amandine512
      @amandine512 11 месяцев назад

      If you want good videos to fall asleep to, check out Classic Ghost Stories Podcast.

    • @TwinkleTwinkleTruly
      @TwinkleTwinkleTruly 10 месяцев назад +3

      Yeah, and it can be somewhat distracting too. I use the videos when I play games, and I really enjoy when there’s just low background music that doesn’t change in volume. That way there’s no need to fiddle with it and they just need to focus on the audio quality of said music and the voice. So far there hasn’t been any issues with the narration, but I know of some channels where an otherwise wonderful video gets ruined because the voice is fuzzy, there’s a faint echo or they don’t keep the mic in front of them properly, so their voice changes whenever they move their head. It’s such a shame, cuz it is so distracting when that happens! Although, I suppose there’s less risk of that happening here, since the narrator isn’t on screen and can fully focus on talking instead of looking at the camera.

  • @NerveBag
    @NerveBag Год назад +17

    Enjoyed the video. But why does the background music change every ten freakin' seconds? Very jarring and distracting.

  • @oobrocks
    @oobrocks Год назад +25

    Incredible doc, including “we don’t know and maybe we never will “.

    • @MeanBeanComedy
      @MeanBeanComedy 3 месяца назад

      Nah, that's loser talk.

    • @benjamindover5676
      @benjamindover5676 Месяц назад +3

      That is the language of science.
      Despite Darwin's lack of fossil or DNA evidence, he was spot on about the main parts of evolution.
      Today, his theory is an established fact.
      There is more than just mountains of evidence for evolution, so much so that we can call it a fact.

    • @microwave-radiation
      @microwave-radiation 21 день назад

      @@benjamindover5676 in science a theory is a fact hence gravitational theory tectonic theory and yes the theory of evolution

  • @SpencerBilodeau
    @SpencerBilodeau 11 месяцев назад +12

    You said 'meow'. Like 'meow tian shan shales'. I respect this. Any good documentary should have a narrator squeezing a 'meow' in somewhere.

  • @danleclerc645
    @danleclerc645 11 месяцев назад

    Thanks!

  • @sp_ce.
    @sp_ce. Год назад +4

    Just yesterday I looked at your channel checking if you’d uploaded. Thank you for the early Christmas present!

  • @swagtachiuchiha1501
    @swagtachiuchiha1501 Год назад +6

    Can't wait to watch this throughout my day tomorrow

  • @michaellamb134
    @michaellamb134 6 месяцев назад +8

    Evolution is not so hard to imagine once you grasp the scale of time's magnitude. Here's a new life form that survives in a specific manner. Here's one offspring that includes a gene that has a chance to randomly mutate. A million years pass, what would will be more likely to survive. The niche survivor?.. Or the randomly varied array of randomised species.

  • @Mishn0
    @Mishn0 Год назад +8

    @12:29 I think your Pronghorn antelope is really a Topi antelope from East Africa.

  • @Hellbender8574
    @Hellbender8574 Год назад +11

    I love the Paleozoic. I can't wait for the next episode! Thanks for creating these.

    • @wolfpackastrobiology3690
      @wolfpackastrobiology3690 Год назад +1

      Hopefully it'll be about the Ordovician Radiation.

    • @Hellbender8574
      @Hellbender8574 Год назад +1

      ​@@wolfpackastrobiology3690yeah, me too. I love the Ordovician period because my son found an Ordovician fossil bed near our house and I always want to learn more about the ecosystem from back then. And see them colorfully swimming and wiggling around, rendered in CGI.

  • @jakemoeller7850
    @jakemoeller7850 Год назад +5

    This is such a fascinating time in Earth's history. I am looking forward to the video!

  • @faraha87
    @faraha87 Год назад

    Thanks

  • @atanacioluna292
    @atanacioluna292 Год назад +3

    Loved your build up and the depth of perspective .

  • @waveney42
    @waveney42 Год назад +1

    What a fabulous series. I came across it yesterday morning, I've watched them all in 2 days. Information dense, real information, really good.

  • @arteckjay6537
    @arteckjay6537 2 месяца назад +4

    I may be late, but its worth pointing out that the creation of AI and biological evolution are only *vaguely analogous, not to be taken for anything more than an extremely simplified similarity. Artificial intelligence really leans into the "artificial" part, where humans have fine-tuned and shaped its design. Referring to it as a "mirror" of evolution is inaccurate, and could lead to a misunderstanding of how evolution works. Natural selection is a process of natural pressures, not curated creation with a goal.

  • @ahabkapitany
    @ahabkapitany Год назад +14

    the Cambrian Explosion of the most fascinating topics in paleontology

    • @ahabkapitany
      @ahabkapitany Год назад

      ​@jamesmills2087 I said paleontology

    • @levitateme
      @levitateme 10 месяцев назад

      of course, "it's the cambrian explosion." Bill Wurtz

  • @chrischester1353
    @chrischester1353 Год назад +18

    At 12:30, the animal in the film is NOT a pronghorn antelope. And this footage, as evidenced by the tree in the background, was taken in Africa.

    • @jlzombiecat
      @jlzombiecat Год назад +5

      Also evidenced by the un-pronged horns.

    • @georgegrader9038
      @georgegrader9038 Год назад +1

      ha caught that too!

    • @timfredericks5018
      @timfredericks5018 Год назад +2

      yeah looked like a khudu

    • @grantjones8690
      @grantjones8690 Год назад +2

      at time 12;40. Not a pronghorn. kind of shadows the credibility of the whole video

    • @neildavidson4115
      @neildavidson4115 3 месяца назад

      Not kudu … topi (common in Maasai Mara)

  • @purplehaze2358
    @purplehaze2358 Год назад +106

    So basically, this could be summarized as;
    "What caused the Cambrian explosion?"
    "Yes."

    • @homuraakemi493
      @homuraakemi493 Год назад +4

      Perhaps.

    • @sizanogreen9900
      @sizanogreen9900 Год назад +7

      I'd personally guess that it really was a combination of all of the above as well as maybe some other factors. Maybe that moment was us overcoming a Great Filter and such extraordinary convergences were needed for that jump.

    • @pauleohl
      @pauleohl Год назад

      Think radiation and not in the biological sense. Intense volcanism brings up radioactive elements that alter the DNA of existing organisms. Most are fatal, hence cancer, but some are beneficial and you have a modified organism.

    • @theoldman5896
      @theoldman5896 Год назад +2

      @@sizanogreen9900 We're probably the only forms of life in this entire super-cluster of galaxies that miraculously overcame such a ridiculous hurdle of improbably and coincidence. Probably why we're all alone.

    • @antonyloc
      @antonyloc Год назад +1

      And AI too, somehow even gets a mention lol

  • @eokic
    @eokic Год назад +64

    I love these videos but can you please reduce the music volume throughout? And the jumps in volume when the narration stops are quite annoying

    • @brainsthecatandhisfellowfe9710
      @brainsthecatandhisfellowfe9710 11 месяцев назад +1

      Turn your volume down somewhat

    • @jasondashney
      @jasondashney 10 месяцев назад +1

      I unsubscribed because of that.

    • @DomesticAlmonds
      @DomesticAlmonds 10 месяцев назад +1

      ​@@brainsthecatandhisfellowfe9710that doesn't work when only one of the audio elements of the video is loud at random times. It's not consistent and it's not the ENTIRE video that's too loud, it's just the music that, for some reason, is loud as hell when he isn't talking.

    • @suzbone
      @suzbone 7 месяцев назад

      Go to the video settings and turn on volume smoothing. It's AWESOME

    • @mwolkove
      @mwolkove 5 месяцев назад

      ​@suzbone hoping you can help me out, cuz I can't find where that setting is in the android app.

  • @PhantomHouseplant2018
    @PhantomHouseplant2018 Год назад +1

    Ommgg this is amazing. The cancer-like cell multiplication idea was incredibly fascinating to me!!

  • @bradenhoefert2109
    @bradenhoefert2109 Год назад +8

    A great video, as usual. But glyptodonts didn’t evolve into armadillos. Glyptodonts and armadillos share a common ancestor which was small. The larger glyptodonts went extinct while the smaller armadillos remain.

  • @VOMITQUEEN
    @VOMITQUEEN Год назад +2

    I’VE BEEN WAITING SO LONG FOR THIS

  • @rkozakand
    @rkozakand Год назад +14

    At 12:47, you mention pronghorn, but the video shown is of an African antelope, likely a hartbeast.

  • @michaelbirbeck9554
    @michaelbirbeck9554 4 месяца назад

    It's an outstanding series. A balm for the mind and soul. Beautifully produced, informative, and intellectually stimulating.

  • @Landrew0
    @Landrew0 Год назад +17

    Something is wrong with the sound on this one;
    It sounds muffled, bassy and lower volume.

    • @voidisyinyangvoidisyinyang885
      @voidisyinyangvoidisyinyang885 Год назад

      why aren't you 2xing it?

    • @OutbackCatgirl
      @OutbackCatgirl 5 месяцев назад

      ​@@voidisyinyangvoidisyinyang885 that doesn't fix the issue from my testing. plus, watching at 2x makes it harder to absorb the content imo.

  • @kylezo
    @kylezo 11 месяцев назад +64

    This is sooooo weird if you actually pay attention to it. the sudden music shifts, unrelated footage, the way he repeats himself and continually changes the way he pronounces things, lol. it's really actually even more hypnotic in that way. it keeps you kinda dizzy lol

    • @Anton-tf9iw
      @Anton-tf9iw 7 месяцев назад +1

      GPT 4.0 used in this "docu" I presume?

    • @AM-qk7ox
      @AM-qk7ox 7 месяцев назад +1

      And probably an AI voiceover

    • @alecity4877
      @alecity4877 7 месяцев назад +13

      @@AM-qk7ox no, if you watch the older videos, you will see the voice is of the same narrator since before AI voicing was a thing. It's simply a narrator that has got his own cadences and tones nailed down to a standard.

    • @AM-qk7ox
      @AM-qk7ox 7 месяцев назад

      @@alecity4877 yeah I know I've been subbed for a few years. Just wanted to bait some know it all into responding to me. Congrats!

    • @alecity4877
      @alecity4877 7 месяцев назад +11

      @@AM-qk7ox ... Ok I guess.

  • @vee1267
    @vee1267 Год назад +3

    What a wonderful Christmas gift! 😄 it’s been a while since the last video but it’s excellent as always!

  • @garrethopwood8178
    @garrethopwood8178 Год назад +7

    I've been excited for a video on the Cambrian Explosion to come out here, and it did not disappoint! The analogy to AI is an impressively relevant and elucidating one. Thank you for creating these!

  • @Steven-mv4bb
    @Steven-mv4bb Год назад +4

    I use these vids for sleep and would honestly love them with no distracting background music. Keep up the good work!

  • @HappyFunNorm
    @HappyFunNorm Год назад +62

    I'm still not convinced there WAS a Cambrian explosion. I tend to think there are just more fossils because harder body structures evolved.

    • @GuardianSoulkeeper
      @GuardianSoulkeeper Год назад +40

      Thats... what the Cambrian explosion was.

    • @Daneki
      @Daneki Год назад +27

      Hold the phone, hundred years of science - this one guy isn't convinced

    • @theoldman5896
      @theoldman5896 Год назад +27

      @Daneki DON'T QUESTION MY RELIGION! (Seriously, don't be silly. Nothing is ever 100% proven in fields like this. Questioning narratives should ALWAYS be encouraged. Even if it sounds goofy at first. That's the heart and soul of scientific freedom.)

    • @SiriusSphynx
      @SiriusSphynx Год назад +19

      ​​@@theoldman5896unless you want to make something into a religious argument when religion was never mentioned. Like why even bring it up

    • @SiriusSphynx
      @SiriusSphynx Год назад +3

      ​@@Danekiread the response above you

  • @atomdent
    @atomdent Год назад +1

    Time well spent,thank you!

  • @Dadas0560
    @Dadas0560 Год назад +6

    Why is anybody searching for "the one thing"???
    Why should there be any one thing?
    It's always a lot of things working together...

  • @brendandunne4401
    @brendandunne4401 Год назад

    Thank you! That was well worth waiting for. Well done Leila! Superb text!

  • @PlumBerryDelicious
    @PlumBerryDelicious Год назад +3

    Fantastic video! Thanks for your hard work!! 💜💙💚💛🧡❤💜

  • @canag0d
    @canag0d 18 дней назад +1

    This is the best thing I’ve ever seen. Saw? Scene? Sorry my brain is broken at the moment.

  • @shanathered5910
    @shanathered5910 Год назад +20

    also, can we applaud that he hyped up the phrase "cambrian explosion" so well that he didn't even need to say it until 8 minutes in?

  • @annastebelskyj580
    @annastebelskyj580 Год назад

    Wowee, your most thorough deep dive yet! I've always loved your writing style, and this installment is top notch work from a top notch writer.

  • @SotraEngine4
    @SotraEngine4 Год назад +15

    Please don't take sponsorships from BetterHelp

  • @Cancoillotteman
    @Cancoillotteman Год назад

    Yeesss !! We've been waiting for this channel to publish ! I am trully elated ! :D

  • @igorzkoppt
    @igorzkoppt Год назад +3

    Love your work, I usually watch each of your video several times over, to refresh what I learned the last time.

  • @baraskparas9559
    @baraskparas9559 2 месяца назад +1

    Usually the simplest answer is the most accurate. First of all 'explosion' is a misnomer since the phenomenon began in the Ediacran. The second cause is the end of the Snowball Earth era allowed the increase in size , driven by cold that affects smaller animals more than larger, began to be driven by the arms race to survive in a macroscopic world dominated by a predatory mode of nutrition.

  • @lucasjames7524
    @lucasjames7524 Год назад +10

    While I understand how it is impossible to appreciate the difficulty of reaching a new realization about something once that new level has been reached (i.e. "hindsight is 20/20"), it still amazes me that evolution was not developed as a theory until the 1800s. That's so recent, in the grand scheme of things. It seems like that came so late, and that it is something that would have been better suited to emerging in the Renaissance or something. Just wild how things go in the course of history.

    • @daleowens7695
      @daleowens7695 Год назад +4

      Im sure some of the more receptive people through history suspected something similar. Usually takes someone with a unique intellect to formalize these sorts of things.

    • @Yankees640live
      @Yankees640live Год назад +6

      I’m sure religion is to blame for this one

    • @Aliandrin
      @Aliandrin Год назад +2

      I don't think religion is entirely to blame. People selectively bred animals since much earlier so they knew exactly what was going on because they had their hands on every part of the process. The idea that it was how complex life started, or that the pigeons you meticulously breed for prettier feathered feet were once dinosaurs, is where the massive leap comes in.

    • @dianahill5116
      @dianahill5116 Год назад

      ​@@Yankees640live
      Religion is a derivative of narricissim.

    • @dianahill5116
      @dianahill5116 Год назад

      ​@@Yankees640live
      Religion is fiction.

  • @Uhtred-the-bold
    @Uhtred-the-bold Год назад +4

    Dude makes great videos! I’d like to see some more from History Time, but these are great too!

  • @Festivejelly
    @Festivejelly 4 месяца назад

    I used to sleep to these but I feel bad because they are far too interesting. Now i listen to them as I work. These are great along with History of the Universe.

  • @wafikiri_
    @wafikiri_ Год назад +15

    The key to the Cambrian explosion might be mobility. Mobility allows to quickly find new niches, new opportunities to survive and evolve.

  • @sedatolcer6799
    @sedatolcer6799 11 месяцев назад

    Very well written (and spoken) documentary on this difficult and fascinating topic..

  • @BanjoGate
    @BanjoGate Год назад +24

    Whoever chose the background music and did the mixing of it fading in with the narration fading out... home, you're drunk.

    • @fruitbatcat
      @fruitbatcat Год назад +3

      yeah, narration is good but far too quiet up to the backing music which becomes a distraction as it's so loud at times.

    • @voidisyinyangvoidisyinyang885
      @voidisyinyangvoidisyinyang885 Год назад

      You gotta 2x these vids and don't watch them - then just read and respond to comments. hahaha

    • @OutbackCatgirl
      @OutbackCatgirl 5 месяцев назад

      are you just using the video as interesting background noise with occasional blasts of insight mixed in? because that would explain a lot

  • @jimc.goodfellas
    @jimc.goodfellas Год назад +1

    I love these channels. Thanks for the early Christmas presents friends

  • @alterego634
    @alterego634 11 месяцев назад +3

    Amazing documentary like every other from “History of” Its only shame that DJ had to drop sick beats every third word, it’s demolishing through earphones. Would be better if speaker voice was frontline, but thats only my opinion, keep on rocking History guys!

  • @ricardo-larosa
    @ricardo-larosa Год назад +2

    I’ve been waiting for this for a long time 🎉

  • @robotboy719
    @robotboy719 Год назад +4

    It seems that you've incorrectly conflated Gondwana with Pannotia and Pangaea [1:00:08]. The super-continent Pannotia formed when Proto-Laurasia was added to Gondwana c. 600 Ma. However, Rodinia was 'short-lived' and came to an end 550 Ma when Laurasia drifted away: "The break-up of Pannotia was accompanied by sea level rise, dramatic changes in climate and ocean water chemistry, and rapid metazoan diversification." That is to say, the fragmentation of Rodinia provided at least some of the diversification you attribute to the Trans-Gondwanan Super Mountain. Gondwana never did make up a 'single, immense supercontinent' as it lacked both Euramerica and Siberia. Euamerica and Siberia did join Gondwana around 335 mya in a supercontinent known as Pangaea (which then began breaking up around 180 mya).

  • @glynnphillips9703
    @glynnphillips9703 Год назад +1

    This was a wonderful show 💯 thank you

  • @paulgush
    @paulgush Год назад +7

    Maybe removing CO2 and carbonic acid from the ocean was as significant as the rise in O2 concentration in the ocean, because it made it easier for calcium carbonate exoskeletons to form?

  • @lucianazolotoi3238
    @lucianazolotoi3238 Год назад +1

    Been waiting for a new one for long, so happyyy!!❤️

  • @erichtomanek4739
    @erichtomanek4739 Год назад +6

    12:29
    That is not an image of a Pronghorn Antelope.
    It's a Topi from Africa, or at least a species of Hartebeest.
    tsk tsk tsk.

  • @rworded
    @rworded Год назад +1

    3 days late here but I'm excited for a brand new episode!

  • @psirotta
    @psirotta Год назад +13

    Andrew Parker's "In The Blink of an Eye", in my opinion, answers this question definitively: Atmospheric changes>increased illumination in the oceans>evolution of eyes and vision> increased effectiveness of predation>explosion of defensive forms as an arms race. He observes that the CE was an explosion of forms, but not of phylology, i.e. did not result in new phyla, all of which already existed but in simple, similar, vulnerable forms, lacking defensive morphology. The appearance of the eye was the trigger. It's a good read!

    • @voidisyinyangvoidisyinyang885
      @voidisyinyangvoidisyinyang885 9 месяцев назад

      thanks! Yes Andrew Parker's work needs to be known - it's all based on quantum diffraction gradients to evolve eyes.

    • @zv7ws
      @zv7ws 5 месяцев назад

      Sounds very plausible. Interesting theory for sure

  • @nicoleblechfeder9075
    @nicoleblechfeder9075 11 месяцев назад

    This was simply incredible. Thank you for teaching us in such a detailed, yet easily understandable way.

  • @johnscanlon8467
    @johnscanlon8467 Год назад +4

    Stock footage fail: at 12: 37 that's not a Pronghorn (Antilocapra) but an African Hartebeest (Alcelaphus). But it's a very Lewis-and-Clarkian error.

  • @Midatlanticriverrat
    @Midatlanticriverrat 5 дней назад

    what a fantastic documentary. Thank you

  • @vusimdudu9033
    @vusimdudu9033 Год назад +3

    A most excellent and illuminating video, thanks. I hope you are going to produce more of the same. ❤❤❤❤❤

  • @theblackprince1346
    @theblackprince1346 Год назад

    On the verge of 500k subs, many congratulations guys.

  • @danielrayner7681
    @danielrayner7681 Год назад +3

    Absolutely brilliant, I would give this 1000 likes if I could, top stuff this channel ❤

  • @GeorgeStar
    @GeorgeStar 6 месяцев назад

    Thank you for the free, incredibly high quality videos but you deserve a higher quality sponsor.

  • @Litepaw
    @Litepaw Год назад +4

    🎶 _"It's the caaambrian explosiooon"_ 🎶

  • @markcarlson1945
    @markcarlson1945 24 дня назад +1

    Even the "scale of time" is not enough explain the eminence complexity of even cell construction.

    • @mcmanustony
      @mcmanustony 6 дней назад

      Why not? Where are your calculations?

  • @rssharkey40
    @rssharkey40 Год назад +3

    The pacing of this episode seems off compared to previous installments somehow, and way less tightly edited. Still both informative and pretty though.

  • @Jason_AstroNovice
    @Jason_AstroNovice Год назад

    Amazing as always! Thank you!

  • @Andrew7923
    @Andrew7923 Год назад +7

    You're giving modern AI WAAAAAAY too much credit.

    • @theoldman5896
      @theoldman5896 Год назад +5

      AI, text-to-speech, VR and 3DTVs are consistent fads that get shilled every 5-to-10 years by big marketing firms looking to hype the masses for grants. Yes, they've been gradually improving, but this is 40-year-olf tech. The ChatGPT mass language models just take advantage of a a few quirks in the massive data sets available to them.
      tldr; this is old-tech, 60% smoke-and-mirrors, and not very impressive. Most of it's lame hype for grants and investor-bait.

    • @voidisyinyangvoidisyinyang885
      @voidisyinyangvoidisyinyang885 Год назад +1

      @@theoldman5896 I worked as a Relay operator for the DEAF community - we typed as fast as people talked. Yes that was 20 years ago and we did get automated. Then I had a paper shuffling job for phone database - that got automated as a "speed dialer." Automation is the number 1 cause of job loss - hence those self-driving taxis in China just replacing a million workers or whatever. hahahaha

    • @theoldman5896
      @theoldman5896 Год назад +4

      ​@@voidisyinyangvoidisyinyang885automation ended slavery too, which is pretty nice. Anyway, the problem I have with these Large Language Modles (like ChatGTP) is that they're being marketed as "intelligent," with is giving the general public an almost religious reverance for it. That's obviously stupid and dangerous.

    • @voidisyinyangvoidisyinyang885
      @voidisyinyangvoidisyinyang885 Год назад +4

      @@theoldman5896 Slavery has not ended! There's a lawsuit against Cargill, the world's largest private corporation, for relying on child slave labor in Africa for cocoa production. A Cargill heir sits on $5 billion in assets - not that far from me. Slavery is still very "lucrative" (some people actually use this word still like it's a positive thing). Dubai was constructed from Slave Labor - passports stolen, wages not covering basic needs for living - yet Dubai led our global warming conference? hahaha. People worship technology indeed - a good book on this is "The Religion of Technology" by Professor David F. Noble - formerly at MIT. He knew the evils of automation so much that he refused to use email.

    • @theoldman5896
      @theoldman5896 Год назад

      @@voidisyinyangvoidisyinyang885 Technically every economic system world-wide that incorporates usury or money-lending is a form of tyrannical "debt-slavery" anyhow. In this specific context, I was refering to Combine Harvesters having a positive effect on the American South (taking the "jobs" away from the enslaved).
      About technology, I seem to remember a certain eco-terrorist writing a popular manifesto about the dangers of automation and industrial society...

  • @dustinheese
    @dustinheese Год назад

    Great channel. I started putting the videos on in the background but I really enjoy your visualizations of the material. Very nice narration and I don't recall hearing anything I disagreed with..in fact I know I've heard some things that I haven't heard from anything other than papers and lectures.

  • @AbbadonOfTheKey
    @AbbadonOfTheKey Год назад +3

    I believe the Cambrian explosion occurred due to the fact that biological specialization increases the speed in which biological advancements occur. In the same way that job specialization increased the speed of technological advancement in our society (due to people devoting their whole lives to perfecting their job/way of surviving) these organisms began to specialize into very particular niches and focus entirely on that niche. They consequently exponentially evolved in that direction.

    • @BeckBeckGo
      @BeckBeckGo Год назад

      Right but we know this. The question is what triggered life to begin specializing so aggressively? And so suddenly. On an evolutionary and geologic time scale, literally a split second had passed. What was the impetus?

    • @AbbadonOfTheKey
      @AbbadonOfTheKey Год назад

      @BeckBeckGo oh, I see! Thanks for the clarification! That's a very tough one. We would have to understand why and how rna forms, why, and how single-celled organisms form super-organisms that can evolve into multi-cellular organisms before we could really begin to explain anything after. If we can't repeat this in a lab, we have to look at fossil evidence, which there's almost none of, with this Era.
      My speculation is that these superorgansims began doing a new thing, growing a shared nervous system between organisms within the super organism. This let them communicate with one another, and probably led to the development of the brain, and ultimately free will, but thats pure speculation, and doesn't explain much else.

  • @alewiina
    @alewiina 8 месяцев назад +1

    That AI tangent was quite out of nowhere, after a few moments I actually checked to make sure the video hadnt changed somehow haha
    Hope you guys will be releasing another video soon!!

  • @bellywood7688
    @bellywood7688 Год назад +4

    Ive been waiting since the Carboniferous for this

  • @Smw006
    @Smw006 Год назад

    Solid examination of the Cambrian explosion and the background behind the idea of its emergence in our conscious.

  • @tysonwastaken
    @tysonwastaken Год назад +8

    im so sick of these religious zealots commenting their silly pseudoscientific anti evolution bullshit lets stop arguing with them

    • @recycledwaste8737
      @recycledwaste8737 9 месяцев назад +1

      Nah, we should keep arguing with them. Every time they fail to back up their nonsense is a good day for scientific literacy.

  • @dalek7804
    @dalek7804 Год назад

    👏👏👏 well done, the best presentation I have seen on the beginnings of life on Earth