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What caused the Cambrian explosion? 

The Economist
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For most of the Earth's history, life consisted of the simplest organisms; but then something happened that would give rise to staggering diversity, and, ultimately, life as complex as that which we see today. Scientists are still struggling to figure out just what that was.
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30 сен 2024

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Комментарии : 2 тыс.   
@PointyTailofSatan
@PointyTailofSatan 5 лет назад
What is not really explained well in this video is the fact that simple single celled life seems to have developed almost the moment liquid water was available 3.5 billion years ago. So it would appear the initial creation of basic life was relatively easy. It was the sudden jump to multi-cellular life after 3 billion more years that remains one of the greatest questions of biology.
@ChristianityRecap
@ChristianityRecap 2 года назад
Your dates are way off. Have you come to Christ yet, or still think you came from a rock?
@Spicy_Italian_Sausage
@Spicy_Italian_Sausage 2 года назад
@@ChristianityRecap 💀💀🤣🤣
@Spicy_Italian_Sausage
@Spicy_Italian_Sausage 2 года назад
@@ChristianityRecap the fact that you believe anything other than humans being highly evolved primates is astonishing. We are animals... nothing more nothing less.
@samfrazee7022
@samfrazee7022 Год назад
@@ChristianityRecap bro this is one of the worst attempts at evangelism I’ve ever seen
@ChristianityRecap
@ChristianityRecap Год назад
@@samfrazee7022 thank you!
@gnzl5653
@gnzl5653 3 года назад
Shingeki no kyojin
@erenjaeger1738
@erenjaeger1738 3 года назад
shhh
@JayHeartwing
@JayHeartwing 3 года назад
The reasons why people are here: - Biologists - Bill Wurtz - Attack on Titan
@drip260
@drip260 3 года назад
none of them.
@kda5901
@kda5901 3 года назад
all of them lol hahaha
@somefuckingretard8289
@somefuckingretard8289 3 года назад
I'm here from Bill Wurtz. Never watched Attack on Titan just like I never watched The Matrix because if I ever talk about something considered "deep" I want people to know things I say come from experience and the mind, not from a movie I was inspired by and decided I'd become a wanna-be
@mikepencestoes
@mikepencestoes 3 года назад
I have an ocean obsession 🧍🏻
@zackakai5173
@zackakai5173 3 года назад
- Yes - Big yes - I don't know, I only watched the first season back when it came out and I was never interested enough to watch more xD
@djayszxs
@djayszxs 3 года назад
Aot chap 137 be like:
@dinobite5209
@dinobite5209 3 года назад
never knew an anime would connect me to this prehistoric things
@Zugrwow
@Zugrwow 3 года назад
dino bite I know right? I watch ONE video on the weird centipede thing and now my recommendations are full of marine biologist documentaries
@alli3670
@alli3670 3 года назад
@@Zugrwow LOL SAMEE
@hemblem131
@hemblem131 3 года назад
@@Zugrwow ye the parasite thingy from Shingeki no kyojin
@orangenade3707
@orangenade3707 3 года назад
@@hemblem131 hallucigenia
@vimalcurio
@vimalcurio 2 года назад
AoT?
@shawnporter5109
@shawnporter5109 8 лет назад
Unlike facebook which is utter crap, youtube may be the most useful site on the internet. Wanted to be a paleontologist as a kid, career path went elsewhere but maintained my fascination for the subject. youtube has vast amounts of material on the topic and allows the intested layman access to materials thay may have long been forgotten. Well done,,,,Oh and interesting summation. Amazing how well we have progressed in our understanding of the beginnigns of life.
@MrKmanthie
@MrKmanthie 6 лет назад
I completely agree with you - Facebook is really stupid. It's a real waste of time. just an excuse to stay inside and never interact with people, "IRL". You Tube, on the other hand - as long as you stay away from (most of_ the comments, one can find an amazing amount of programs, videos, movies, and all sorts of unpredictable things which people from around the world have uploaded- everything from silly cats-trying-to-walk-on-treadmills videos to videotaped college course lectures from such institutions as Stanford, MIT, (grudgingly I'll say it:) Yale (although, of course, Harvard is so much better than Yale, but that's a different argument for another time). Anyway, if you want to find educational videos about all sorts of subjects - weather/climate sciences, astrophysics, quantum physics, anthropology, etc., etc. and, of course, there are millions of songs that are uploaded either as just a still picture-video with the song playing or else the video for the song is uploaded or even, sometimes, some uploader will create their own video for a particular song and post it, and sometimes you find whole albums' worth of stuff, i.e., a whole album in one post. Also, there are also lots of movies - both public domain ones, like so many great things from the early 30s (and a lot of these early 30s movies are actually better than the stuff that came out of Hollywood after that awful "Hays Code" -that asshole who, being an uptight stick-up-the-ass jerk & trying to kiss the govt's ass so they wouldn't clamp down & legislate Victorian morals on films-which happened anyway, up until the 60s, when taboos were finally being chopped down & flushed down the goddamn toilet! But you can sometimes catch a newer (copyrighted) movie that has either escaped the copyright-policing software that takes those down by speeding up the sound or doing some sort of tricky thing with the picture quality - sometimes it's in the form of an elliptical light in the middle of the movie that can be distracting when the scene happens to be in a dark spot - say, at night or in a darkened room, etc. Or, you may get a chance to see a newer movie if you chance upon it just in time, before it gets taken down for copyright reasons. Anyway, yes, You Tube is a great thing - I only wish all the trolls that waste so much time with their back & forth verbal catfights and temper tantrums, etc. would go somewhere else - like Facebook and stay there! -otherwise, just stay up where the video is & ignore the comments and you'll enjoy the experience much more!
@MrKmanthie
@MrKmanthie 6 лет назад
Yeah, FUCK facebook. Bunch of idiots.
@shirleymason7697
@shirleymason7697 6 лет назад
I tried FB briefly and quickly knew it was a huge waste of my valuable time. Time is something of which they won’t be making more. I took a look at some of the connections to my FB, and, YEESH ! many people had posted every bit of trivia as though - if they couldn’t record each meal, each trip, each day, each breath, it hadn’t existed, and they might not exist. Perhaps they do not exist, if FB takes up so much of their concentration.
@stackflow343
@stackflow343 6 лет назад
RU-vid is a mess actually.
@stevemoyer2273
@stevemoyer2273 6 лет назад
Try TED talks. Even better
@bidnetwork.828
@bidnetwork.828 3 года назад
Attack on Titan refrencess
@diebesgrab
@diebesgrab 4 года назад
The Economist: What caused the Cambrian explosion? Me: Wait, what? The economist is looking at paleontology? What?
@NopalTheRock
@NopalTheRock 3 года назад
Literally, AOT bring everyone to learn biology
@SimbolicProductions
@SimbolicProductions 3 года назад
AOC*
@agnostic_man6943
@agnostic_man6943 2 года назад
Attack on Titan?
@vimalcurio
@vimalcurio 2 года назад
For me it was a Jeff Bezos video lol but I've also watched that episode on AOT but didn't go that deep there
@HotZetiGer
@HotZetiGer 7 лет назад
they talk about eyes, oxygen but no sexual organ explosions ?
@SeadogDriftwood
@SeadogDriftwood 2 месяца назад
Soft. Tissues. That kind of stuff rarely survives.
@cafinario
@cafinario 4 года назад
Ok, we have no idea how the Cambrian explosion occurred.
@chimpanzeethat3802
@chimpanzeethat3802 4 года назад
Evolution.
@yahwayapps7947
@yahwayapps7947 4 года назад
May be all animals created at the same time instead of evolutionary process?
@chimpanzeethat3802
@chimpanzeethat3802 4 года назад
No of course not. There are pre-Cambrian fossil ancestors for organisms in the Cambrian. Not many of them admittedly because soft bodied organisms are hard to find in the fossil record. Evolution is already proven to exist.
@grinckerthesoul1510
@grinckerthesoul1510 4 года назад
@@chimpanzeethat3802 Yes, simply a mixture of random genetic modifications
@SonofJacob120
@SonofJacob120 4 года назад
@@chimpanzeethat3802 explain to me the evolution of the human eye.
@danielmilev848
@danielmilev848 3 года назад
Aot
@radiofun232
@radiofun232 3 года назад
A new living creature needs a new functional genome. The question is how these new functional genomes came into existence. That is not explained here.
@ericanderson3534
@ericanderson3534 3 года назад
Nor is it even mentioned. It just assumes we all believes that evolution is the only possibility.
@BFizzi719
@BFizzi719 3 года назад
Evolution
@zedwms
@zedwms 6 лет назад
Nobody expects the Cambrian Explosion!
@keepdancingmaria
@keepdancingmaria 6 лет назад
Now, THAT was unexpected!!!!!
@williamchamberlain2263
@williamchamberlain2263 6 лет назад
Would've made Monty Python a lot harder to shoot.
@cjb4924
@cjb4924 6 лет назад
I just made this comment elsewhere in these comments, but now see you beat me to it. First kudos to you.
@larryquirap5154
@larryquirap5154 5 лет назад
There is an intervention
@robertbrodie5183
@robertbrodie5183 5 лет назад
It chief weapon is shells and mobility. Our two chief weapons are shells,mobility and a ruthless devotion to evolution. Its three, three chief
@brotalnia
@brotalnia 9 лет назад
this is the kind of videos i subscribed for
@Mrbfgray
@Mrbfgray 6 лет назад
Indeed. And one of the most fascinating topics ever.
@rokitman5753
@rokitman5753 5 лет назад
i didnt sub but im happy you did , )
@Roger-hu4tk
@Roger-hu4tk 3 года назад
Aot fans anyone?
@sniper9961
@sniper9961 3 года назад
Yeagerbomb
@MattJohno2
@MattJohno2 7 лет назад
It's the cambrian explosion! "Wow, that's animals and stuff"
@Lucasthegreat-z6w
@Lucasthegreat-z6w 5 лет назад
You forgot the TM at the end of the word stuff
@danifields6805
@danifields6805 4 года назад
Can we go on land now? "NO" Why? "THE SUN IS A DEADLY LAZER" Oh ok. "Not anymore. There's a blanket"
@erenjaeger1738
@erenjaeger1738 3 года назад
shhh my weebs this is history class
@adambf5145
@adambf5145 3 года назад
Stop spoiling Attack on titan with these videos
@Dr.HJ99
@Dr.HJ99 2 года назад
Who is like me searching for a religious comment? Lol
@LadyJ_88
@LadyJ_88 6 лет назад
I'm almost 30 & I chuckled when the narrator said anus .... * sigh *
@brianhackert8513
@brianhackert8513 6 лет назад
the church people blushed and felt ashamed
@juggalo184
@juggalo184 6 лет назад
Grow up. We don't need naughty language to entertain us.
@shirleymason7697
@shirleymason7697 6 лет назад
Anus is an appropriate anatomical term, just like saying face, foot, knee, - go to school.
@shirleymason7697
@shirleymason7697 6 лет назад
Exactly what would you almost-thirty have had him say? That aperture at one end for elimination? Almost-thirty sounds almost-ten.
@LadyJ_88
@LadyJ_88 6 лет назад
Shirley Mason I make no excuses for what my idiotic baby brain finds funny. Lighten up Shirley
@Tapajara
@Tapajara 5 лет назад
Consider that the Cambrian Explosion was pretty much about the arthropods which happened because of their new found ability to produce chitin. For the mollusks it was the Ordovician (and their ability to produce a calcium carbonate shell). For the Chordates it was the Silurian (and their ability to produce a calcium phosphate skeleton). It was all about the ability lay down skeletal material and HGT (horizontal gene transfer) was almost certainly the mechanism that spread the capability among related taxa.
@mikerogers4640
@mikerogers4640 5 лет назад
Agreed. Former soft animals simply died and got eaten or vice versa. The one change of adding hard matter such as shells or skeletons created fossils. Just one small change and all is explained. No great time involved.
@wombatmobile
@wombatmobile Год назад
What do you mean by "soft animals"? How many cells were they composed of? Were they eukaryotes? What caused the evolution of soft animals? How did life go from single cells to multiple celled organisms?
@midas01tw
@midas01tw Год назад
@@wombatmobile the ancestors of the cambrian fossils, no skeleton or shell, no fossils, but they were somewhat more like animals than simple multicelular life
@wombatmobile
@wombatmobile Год назад
@@midas01tw Were they eukaryotes? How did life go from single cells to multiple celled organisms?
@fishwoman7825
@fishwoman7825 Год назад
@@wombatmobile Best off asking a biologist those questions mate. I doubt random youtube commenters will be able to answer your questions with accuracy and explanation, you will just end up doubting the answers and forming your own incorrect ones
@raziismail8230
@raziismail8230 3 года назад
Explosion occur because someone turn into Titan.
@Ian64
@Ian64 6 лет назад
Now we know the Ediacarans lived alongside the Cambrians, and Anomalocaridids survived until during the Devonian
@christianv-h3278
@christianv-h3278 5 лет назад
I hope we soon manage to fill the Silurian gap in the anomalocaridid record...
@Martial-Mat
@Martial-Mat 5 лет назад
"Life literally exploded" _Andrew Parker_ I don't think proffessor Parker knows what the word "literally" means.
@ducksmugglers
@ducksmugglers 5 лет назад
Or exploded
@Martial-Mat
@Martial-Mat 5 лет назад
@@ducksmugglers lol
@thomassaldana2465
@thomassaldana2465 5 лет назад
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-TZBn8-UUQeI.html
@CharlesvanDijk-ir6bl
@CharlesvanDijk-ir6bl 5 лет назад
The "explosion" took 25 million years.
@vashon100
@vashon100 5 лет назад
Professor
@HERO_KID_SHORTS
@HERO_KID_SHORTS 3 года назад
Aot....
@joshuaoha
@joshuaoha 9 лет назад
Competition really drives innovation.
@EGarrett01
@EGarrett01 9 лет назад
+joshuaoha Send this video to Bernie Sanders please.
@bakalitetrick968
@bakalitetrick968 9 лет назад
+joshuaoha competition between species, you knuckleheads.
@EGarrett01
@EGarrett01 9 лет назад
m. buss ...and within species, and in economics.
@bakalitetrick968
@bakalitetrick968 8 лет назад
+The Blind Nigga Samurai ... its just that, really, this video is about a different type of competition and a different type of evolution.
@spensermitchell4106
@spensermitchell4106 8 лет назад
+Wissenschaftlich Bewiesen try being a little less pompous and people will respect your intelligence. Especially if you respect their beliefs.
@twerdeffan1080
@twerdeffan1080 7 лет назад
Wow, that's animals and stuff.
@bobyfransr
@bobyfransr 7 лет назад
bill wurtz
@itskevinjustkevin
@itskevinjustkevin 6 лет назад
But we're still in the ocean hey can we go on land?
@Jessica-xh7lt
@Jessica-xh7lt 5 лет назад
Thank you for explaining I was so lost
@kunnoqi6054
@kunnoqi6054 5 лет назад
why? *THE SUN IS A DEADLY LAZER*
@guitar_and_weed
@guitar_and_weed 5 лет назад
@@kunnoqi6054 not anymore theres a blanket
@--Paws--
@--Paws-- 7 лет назад
I wonder if the water back then was freshwater, brackish or saltwater. It could be that different concentrations of minerals and chemicals affected the creatures and it didn't matter since they have adopted to their environment. The shape of a creature is affected by how they move and how their mate and their opponents react (social interactions). A predator will eat their prey regardless of shells and spikes. The shells, spikes and other limbs affect how the creature expresses their aggression towards a rival and many other methods of communication towards their mate. The size and the other augmented body parts are due to their way of obtaining food and how they move about. Most of the creatures featured in the video resemble many microscopic creatures and vernal pond creatures of today.
@essex3777
@essex3777 Год назад
I always wondered if a human went back to that time, would he be able to survive? Would the atmosphere be breathable? Is the land hostiles? Where can he find food?
@archravenineteenseventeen
@archravenineteenseventeen Год назад
​@@essex3777 nope. We have smaller lungs and can't handle vast amount of oxygen
@robertmiller1299
@robertmiller1299 5 лет назад
They have no idea what CAUSED the Cambrian explosion.
@generalleenknassknotretire9180
Humans don't know a lot of things. What's your point?
@ZGGuesswho
@ZGGuesswho 5 лет назад
but they know much, and it is proven through various causal mechanisms that are trackable through re-provable feedback mechanisms that happen through constants, like chemical action. It's an insane amount of state history for extractable data, because it's stratified, or because it is retained in genetics. That's huge amounts of backing data. I don't even know why I'm saying it to you "Robert" because you're not gonna care and it's probably better that you don't. We're fucked.
@ducksmugglers
@ducksmugglers 5 лет назад
Was semtex a thing back then?
@stankfaust814
@stankfaust814 2 года назад
I've always viewed the cambrian explosion as an event wherein you have a vast habitat of plant life with no predation. Once levels of oxygen became enough to support sustained movement, the arms race began. But keep in mind, that virtually EVERY predatory mutation during this time was likely successful (or at least a large portion were compared to later where predatory niches are filled and competition fierce)
@TrinityCore60
@TrinityCore60 2 года назад
Wait, that only happened in the Precambrian? I didn’t realized that took so long.
@_vallee_5190
@_vallee_5190 Год назад
Oxygen levels were higher prior to the Cambrian explosion so this doesn't make any sense. In face snowball earth was caused by Cyanobacteria removing carbon from the atmosphere, which occurred long before the Cambrian.
@bibia666
@bibia666 2 года назад
The answer to that question is : THE EDIACARIAN EXPLOSION did trigger the cambrian explosion.
@Alexm0321
@Alexm0321 2 года назад
I caused it
@gerrardjones28
@gerrardjones28 2 года назад
Its the Cambrian explosion!
@lilitheden748
@lilitheden748 6 лет назад
I just cannot get enough of this evolution stuff, it’s amazing, wonderful and magical ...
@chopppacalamari
@chopppacalamari Год назад
Yes it is magic alright.
@theHentySkeptic
@theHentySkeptic 3 года назад
most of the basic body forms (plus some we have since lost) appeared out of nowhere for no known reason in a little bit more than the time taken for us to diversify from our chimp ancestor - amazing! All those; complex organs, feedback loops in physiology, nervous systems etc - utterly and literally fantastic.
@busylivingnotdying
@busylivingnotdying 2 года назад
Well, if I understand it correctly, what emerged "suddenly", was life that FOSSILIZED well enough to be classified. We know too little about the creatures before the Cambrian to contrast it (with certainty) with what came after. Some say the Cambrian explosion started well BEFORE the Cambrian .. extending it to maybe 50 million years (if I remember correctly)
@338684q
@338684q 3 года назад
attack on titan
@VitalMusic217
@VitalMusic217 2 года назад
So we don't know what caused the Cambrian explosion. Saved you 11 minutes.
@matt-san1711
@matt-san1711 3 года назад
I think the cause is something called *EREN JAEGAR*
@RifetOkic
@RifetOkic 5 лет назад
Where is the Link between cambrian explosiojn or any life, and the hard problem of conciousness?
@Peter_Scheen
@Peter_Scheen 5 лет назад
Why? You refer to Abiogenesis, something that happened billions of years before that period and something as consciousness that happened millions of years later. In either case they have some compelling evidence.
@RifetOkic
@RifetOkic 5 лет назад
Isn’t that the materialistic/chemical explanation ? I mean basically, how , why and when does an hydrogen atom start to have an inner experience ? I mean bacteria have maybe a billionth of a billionth of the conciousness we have, nothing as rich as we do, maybe the faintest sense of light or pressure. I mean also: this complex brain activity, or any sensory experience, why is there an subjective aspect? Why is it not all happening in the dark without us having an experience ? I mean, the matter itself is unconcious, how can it ever give rise to something as immaterial as an experience ? I’m searching for some answers. But this video is definitely interesting and all gathered knowledge is welcome.
@Peter_Scheen
@Peter_Scheen 5 лет назад
@@RifetOkic The total is more than the sum of its components. The brain is a collection of neurons that is so complex that it now creates the consciousness. Look at chimps, they too are aware of their existence. They too feel compassion for other chimps. So, even though it is mind boggling it is the result of biochemistry. For instance, you do know that people with brain damage can loose parts of their cognition. They often can not speak or understand what you say, they can loose their empathy for others etc. It is a wonderful thing that we are at this stage of evolution, I wonder what the far future will bring.
@SeaJay_Oceans
@SeaJay_Oceans 6 лет назад
Thank you Cambrian explosion, I am enjoying existing as a human being ! :-) It would be nice if you could repeat that, and create thousands of new species to keep Earth Alive.
@mrtadreamer
@mrtadreamer 5 лет назад
What caused the Cambrian explosion? The Bible calls it the creation week of Genesis.
@Bless-the-Name
@Bless-the-Name 3 года назад
Where is the evidence for gradual development?
@neilprice4915
@neilprice4915 4 года назад
I thought the economists are only interested in economics.🤔
@adamplentl5588
@adamplentl5588 4 года назад
I guess life is a big part of economics.
@cheeseycheezy
@cheeseycheezy 4 года назад
I mean, without the start of life there is no economists- ;-;
@LionKing-ew9rm
@LionKing-ew9rm 3 года назад
@@adamplentl5588 I think economy, is an extension of biology (into the humanities)
@stuckonaslide
@stuckonaslide 8 лет назад
Explanation: nature was high for 2 billion years
@ludwigjosh9619
@ludwigjosh9619 7 лет назад
ITS A CAMBRIAN EXPLOSION!!!!!!!!!!!!🎵🎵
@mtlicq
@mtlicq 4 года назад
Rock on !
@louisvonbeethoven
@louisvonbeethoven 3 года назад
"Then, in the late Devouring period, fish became obnoxious"
@CADWALLATER
@CADWALLATER 6 лет назад
Never fond of chemistry or biology in school, which may account for why I have trouble understanding how all these weird creatures just sprang to life. And I dislike the idea that I evolved from a fish. Or a gerbil.
@drg8687
@drg8687 4 года назад
But is gives you comfort to know a magical sky daddy created you from dirt and will send you to hell for not sprinkling water on your forehead?
@elicurlee-strauss7339
@elicurlee-strauss7339 4 года назад
thank you been pondering this mystery all day and all night and i a m tired of all the conspiracy theories about it . this was succinct and based on science.
@mohammedhasanen6291
@mohammedhasanen6291 2 года назад
what science ?? the whole video is just showing theories with no single scientific evidence.... watch it again .. every scientist is just giving his own opinion !!
@joshmarsh2532
@joshmarsh2532 2 года назад
@@mohammedhasanen6291 Looks like someone didn't learn the difference between theory and hypothesis in school. Gravity is a theory, don't see you claiming it's not real
@mohammedhasanen6291
@mohammedhasanen6291 2 года назад
@@joshmarsh2532 … Wow, Please teach me your wisdom and tell me the difference. I think if you were living 500 years ago, you would be easily convinced that the moon was being swallowed by a dragon during eclipses, because the wise man in the village said so 😂. Hypothesis or a theory 🤔, if it’s a hypothesis, then you cannot call it science because no one sure if it’s true or not .. if it’s a theory then it needs to be consistent with the data AND LOGICAL. A dragon swallowing the moon during eclipse is consistent with the data ( the mood suddenly disappears) but not LOGICAL. Having this variety of creatures in such a short period of time with this scale because the oxygen level become higher is simply not logical to me.
@leebomcclelland504
@leebomcclelland504 5 лет назад
Cambrian period is so cool life-form
@norm1286
@norm1286 3 года назад
Did we shift realities or did the founder wipe our memories?
@mitseraffej5812
@mitseraffej5812 4 года назад
Sit and watch people move around a shopping mall, to me the scene looks little different to animations of trilobites and other creatures of the Cambrian period scurrying over the sea bed. Ultimately of no more importance.
@rossbabcock2974
@rossbabcock2974 Год назад
13--25 million years is sort of a 'slow motion' explosion. We often forget evolution is agonizingly long!
@brainstormingsharing1309
@brainstormingsharing1309 3 года назад
Absolutely well done and definitely keep it up!!! 👍👍👍👍👍
@JohnStephenWeck
@JohnStephenWeck 7 лет назад
Greetings all. The Cambrian explosion occurred in the eukaryotic cell based organisms, and they completely outclassed their competition (making animals, plants, fungi) leading to an evolutionary explosion. This superiority is especially visible in multi-cellular forms. This is really a story about eukaryotes “flexing their muscles” after a couple of billion years of perfecting their reproductive and maintenance control mechanisms. The most important aspect of the eukaryotes is a cell nucleus that functions like a computing system with hardware (DNA memory system, memory system operations like reading/writing/error correction, etc.) and software (the genome). The eukaryotes had built a cellular computer sufficiently powerful to reliably construct and maintain the complexity of a multi-cellular form. Thanks for listening.
@CalvinDilbert
@CalvinDilbert 7 лет назад
Thank you! Glad to be an eukaryote.
@JohnStephenWeck
@JohnStephenWeck 7 лет назад
;)
@gunnaropsahl5209
@gunnaropsahl5209 7 лет назад
Interesting! I would still like to question the claim that "(...)eukaryotes had built a cellular computer system(...)". Does anyone actually know how the information-rich molecules and the cell's information-processing system in the DNA/RNA arose?
@JohnStephenWeck
@JohnStephenWeck 7 лет назад
greetings gunnar, I don't know anything about the origins of cellular computers. But I do know that wherever software systems exist in a control system, it provides the intelligence of that system. The bigger the software, the more intelligent the system. In this case, the nucleus "computer" is manufacturing a multi-cellular organism (with high level structures like organs, tissues, etc), not merely a pool of cells, like the Stromatolites (which takes little information beyond just cells to construct and maintain). In order to construct the more complex organisms, there had to be an evolution of software-size (indirectly the DNA memory system size) so that it would be big enough to solve this problem. This includes any error correction required to maintain the larger memory.
@MasterChief-sl9ro
@MasterChief-sl9ro 7 лет назад
That is nice. But time is not a physical force. You need something to spur it. And you don't have Billions of years. You got maybe 20 million. As the conditions on earth for the first 3.5 billion was recovering from the formation of the moon and thick atmosphere to be stropped away. Then just at the proper conditions exist. It all just comes alive at around 600 million years ago. Mot to mention. Once you have water in all three states. You have Oxidation. Corrosion. Chlorine and Radiation. All of which would stop any cellular life from forming new features. As you get crippling mutations. That degrade the genetic information. And yes. I know my biology. As we got better microscopes today....
@scottdetter
@scottdetter 4 года назад
First they said, Cambrian explosion was a mystery, then said, what happened Exactly!
@Cyberpuppy63
@Cyberpuppy63 2 года назад
It's a mystery due to a lack of "hard", easy to find evidence. a) due to most fossils not having hard parts; and b) convective and geo-morphic removal of rock and land masses due to subduction.
@scottdetter
@scottdetter 2 года назад
@@Cyberpuppy63 there should be 1000’s more transitional fossils than there are actual fossils. I’m all for “theories” & “hypothesis” and even the word that science can’t live without namely “Chance” but the real insidious word that is always thrown around with abandon in the scientific world (and the political world for that matter) is the word “Fact”. We can’t have our cake & eat it too.
@Musketeer009
@Musketeer009 2 года назад
The Cambrian detonator.
@BeanDar
@BeanDar 6 лет назад
god did it
@liamcameron3648
@liamcameron3648 7 лет назад
Lol half of the comments are just stupid people arguing about religion and the other half is history of the world I guess memes.
@neutronstar6739
@neutronstar6739 6 лет назад
Marc Bell how does the word meme outdated lol?
@neutronstar6739
@neutronstar6739 6 лет назад
Marc Bell Oh, I'm sorry. My English is fucking terrible because my main language is not English. Let me ask you again, how the fuck is the word "meme" outdated when it is being uses all over the globe?
@theevster3413
@theevster3413 6 лет назад
Liam Cameron q
@indridcold8433
@indridcold8433 5 лет назад
I have noticed many trilobites are found in the folded posture. It seems it was a defensive posture to protect its softer under body. I have ten trilobites. Six of them are in the defensive folded posture.
@wonderboy4993
@wonderboy4993 5 лет назад
Tough to study. Lack of fossilization due to hard bodies make this really tough lots of holes scientists haven’t figured out yet
@mtlicq
@mtlicq 4 года назад
LOL
@trevorfranks69
@trevorfranks69 3 года назад
>comments sorted by new
@davewilson4058
@davewilson4058 5 лет назад
Could the explosion have been caused by fluctuations in the Earth's magnetic field causing excess radiation from the Sun reaching the surface and causing many mutations in the lifeforms resulting in such developments? If this is a possibility there would have been multiple changes, many successful and able to flourish, whilst other's were too bizarre and impossible to cope with the existing conditions, therefore fading into oblivion.
@Bravetrain13
@Bravetrain13 2 года назад
I'm sorry but do you know the mathematical odds of that being the answer? We throw out all these possibilities that have extremely absurd mathematical odds and hardly make any sense in light of what we now know about DNA. I'll never understand why we are forcing ourselves to ignore hypotheses with better odds in order to jam hypotheses with absurd odds into the current framework because they fit the dominant ideology.
@heythere9554
@heythere9554 2 года назад
We could try to recreate similar situation in a lab to confirm or reject this theory
@SomeCollege
@SomeCollege Год назад
No, mutations could not have caused the development of any complex life forms we observe in the Cambrian explosion or life we observe today, including you. It’s mathematically impossible.
@Magst3r1
@Magst3r1 Год назад
@@SomeCollege Why not?
@chopppacalamari
@chopppacalamari Год назад
@@Bravetrain13 the more likely scenario mathematically is that all the fossils in the Cambrian explosion were already living since day one and the explosion is due to the first ever flood occurring and burying them.
@greyedgerton2890
@greyedgerton2890 5 лет назад
Thumbnail of my mother-in-law.
@MrMedukneusha
@MrMedukneusha 6 лет назад
YAY! A documentary that wasnt uploaded by a 1993 camcorder bootleg!!
@anthoniemuller9242
@anthoniemuller9242 Год назад
An explanation of the Cambrian explosion: The viewers may be interested in a model I have published for the emergence of siphonophores during evolution. The zooids would have emerged during the Late-Proterozoic Snowball Earths, when they would have lived on heat (not food nor light!): i.e., while the oceans were covered by ice the zooids would have lived on primary production based on the thermal gradients above submarine hydrothermal vents. Higher animals would have descended from the siphonophores after the Snowball Earths ended and the colonies could live on food resulting from primary production by the reemerged sunlight. 1. ISSOL 2008 conference. Poster: DOI: 10.13140/RG.2.2.33734.01609 2. June 2009 Publication Animal emergence during Snowball Earths by thermosynthesis in submarine hydrothermal vents Nature Precedings 4 DOI: 10.1038/npre.2009.3333.2 3. February 2012 Book chapter Life Explained by Heat Engines
@TheNoiseySpectator
@TheNoiseySpectator Год назад
"Chemosynthesis". If this were correct, would there not be an even greater abundance of chemosynthetic life below the ocean's "zone of darkness", aka the depth where sunlight doesn't reach below the water? There are some such organisms that live on the bottom of the ocean, around volcanic vents, but I'd expect more types, and more common. It also gets me to wondering if there could be life living on the underside of the Earth's crust, between it and the Earth's magma outer core?
@TheNoiseySpectator
@TheNoiseySpectator Год назад
BTW, most everyone who reads this are layfolks. Would you define "Siphonophores" and "Proterozoic"? Safe assumption that "zooids" just means living animals, I'm general?
@anthoniemuller9242
@anthoniemuller9242 Год назад
@@TheNoiseySpectator There have been many reports of microorganisms in the Earth's crust. These might live on thermal gradients, but also on respiration, using the products in water resulting from radioactivity, such as for instance hydrogen and hydroperoxide. Most organisms in the crust will however not be able to span thermal gradients there, whereas near submarine hydrothermal vents a thermal gradient exists between the cold sea water (~ 0 C) and the vents, which can be hundreds of degree centigrade.
@優さん-n7m
@優さん-n7m 5 лет назад
Taliban existed even at that time? This is a paradox.
@moominm1037
@moominm1037 7 лет назад
Wow that's animals & stuff
@cheeseycheezy
@cheeseycheezy 4 года назад
But we still in the ocean, hey can we go on land? No Why? THE SUN IS A DEADLY LAZER
@chimp1561
@chimp1561 6 лет назад
🎼it's the Cambrian explosion🎼
@JeremiahKlarman
@JeremiahKlarman 3 года назад
Wow, that’s animals and stuff.
@MoeSlislack
@MoeSlislack 6 лет назад
what caused the Cambrian explosion? they don't know. the end.
@shirleymason7697
@shirleymason7697 6 лет назад
MoeSlislack ......watch it again. They have numerous intelligent, workable ideas. Cut some slack.
@chimp1561
@chimp1561 6 лет назад
Pretty obvious plants made animals and oxygen because bacteria wanted to 🎼taste the sun
@rcchristian2
@rcchristian2 6 лет назад
It was most likely oxygen and sea creatures moving up on land to exploit plants. It will be interesting to see how over the years, the evidence may bear this out. one spicy memey boi said _"Pretty obvious plants made animals and oxygen because bacteria wanted to 🎼taste the sun"_ Plants were not the first photosynthesizers. It was cyanobacteria in the great oxygen event. It was an over run of these bacteria that caused that first wave that made it possible for Eukaryotes to evolve and put so much oxygen in to the atmosphere. This great oxygen event most likely created the ozone layer as well, which allowed animals with these new cells to move up on to land. These new cells are basically evolved bacteria cells that and are animal cells.
@chimp1561
@chimp1561 6 лет назад
Robert C. Christian ya kinda what is was goin for in a small sense
@Daniele63
@Daniele63 6 лет назад
GOD
@wes89
@wes89 2 года назад
Life literally exploded... metaphorically speaking of course.
@jctutorials1759
@jctutorials1759 5 лет назад
Millions of years ago “hey look it’s a lizard in water” Earth “NO” **throws oxygen at lizard** “No your a dinosaur now” **REEE**
@nirmalapersaud7589
@nirmalapersaud7589 5 лет назад
.
@janhoek1000
@janhoek1000 5 лет назад
Why is the lizard in the water
@S....
@S.... 7 лет назад
Why are you whispering? Is it a secret?
@usuarionormal6778
@usuarionormal6778 5 лет назад
they never got etiopia they never got thailand
@bobyfransr
@bobyfransr 7 лет назад
bill wurtz brings me here
@thegoodmalicious4142
@thegoodmalicious4142 6 лет назад
Me too...
@turmuthoer
@turmuthoer 6 лет назад
"Wow, that's animals & stuff"
@gustavoduran7077
@gustavoduran7077 5 лет назад
G O D
@edmundspang1433
@edmundspang1433 5 лет назад
That toupee is so distracting.
@slehar
@slehar 2 года назад
Excellent presentation. But what about the Eucariotic cell? And Mitochondria? Wasn't THAT the trigger?
@brandons.
@brandons. 2 года назад
No, it can't be that. The Eucariotic cell and the Mitochondria helped create MULTI-CELLULAR LIFEFORMS. The Cambrian Explosion was about the development of hard-bodied creatures and animals that could move on their own. Vision was created and you could fully be aware of your surroundings. Multi-cellur lifeforms appeared before the Cambrian Explosion. They were Ediacaran creatures. What you are describing was the trigger for multi-cellular lifeforms, NOT the Cambrian Explosion.
@buckfisherGBY
@buckfisherGBY 6 лет назад
I think a considerable factor in the cause of the explosion of life at the time of the Cambrian Era, is that the earth's temperature at the time is the warmest it has been since that time. Warmer than the Eocene Optimum. There is always more growth and variety in warmer times.
@stuartstark
@stuartstark 7 лет назад
Answer: The Kree
@Scrunglygrub
@Scrunglygrub 8 лет назад
The Cambrian A.k.a, when God was taking both lsd and weed
@chancehowe5812
@chancehowe5812 7 лет назад
I don't know whether to take this seriously or a joke XD
@Scrunglygrub
@Scrunglygrub 7 лет назад
Break-Dancin' Loafie Loafer there were wormlike things that had toothpicks as a defense, a worm that was a crawling pincusion, sea pillbugs, a shrimplike thing that should belong in an alien movie, and a demonic shrimp. I'd call that a drug induced creation spree
@chancehowe5812
@chancehowe5812 7 лет назад
JARI B don't even get started on the Omolocaris (Or however its spelled)
@vladalexander7489
@vladalexander7489 7 лет назад
Anomalocaris?
@ajayalcos3928
@ajayalcos3928 7 лет назад
+JARI B Through his rectum
@rambiss89
@rambiss89 4 года назад
To sum it up, no matter how confidently we talk, none of us have any clue what happened except that it was an explosion of life forms. There are many presuppositions upon presuppositions in what we say but we hope you don't notice.
@pavaomarusic6051
@pavaomarusic6051 5 лет назад
Not one answer!!
@evilmelez
@evilmelez 4 года назад
look for biochemical info for answers or read books about it.
@hirehammer925
@hirehammer925 4 года назад
In the beginning, God
@mattwolf7698
@mattwolf7698 4 года назад
Created light and plants before the sun and moon and there's no proof that, that particular religion is correct.
@MoonGables
@MoonGables 6 лет назад
*A L I E N S*
@Sma-v4y
@Sma-v4y 5 лет назад
hahaha!
@ragtaghero84
@ragtaghero84 9 лет назад
Mind boggling and awesome do not begin to give this topic justice.
@TaoMing
@TaoMing 6 лет назад
Seeking the truth as it relates to conscious life? Search *_Truth Contest_* and read the top entry called "The Present".
@tgreg9542
@tgreg9542 5 лет назад
Matthew Chua well back in theses times I’m pretty sure sure animals were laying eggs and the male would fertilize them......not humping was done YET
@vinceanthony7046
@vinceanthony7046 8 лет назад
The cambrian started due to increasing oxygen levels.
@alpineglow8848
@alpineglow8848 5 лет назад
I agree. While it had to be several different phenomena operating independently at the same time, the Oh two level seems to be the best candidate for the big push, the most salient factor giving rise to the iconic 'Explosion'. Those throwing up their hands, saying "We're Clueless", then revert to creationism, have thrown out the baby with the bathwater. One of the most helpful problem solving aides I've come across is "Occam's Razor".
@herbspencer4332
@herbspencer4332 5 лет назад
The "Cambrian Explosion" was when the Inter-galactic Zoo-Keepers last seeded Earth.
@Keralite29
@Keralite29 5 лет назад
A Lloyd Pye fan, I assume? It really is a fascinating hypothesis. Do you have any further opinions of what you believe these Terraformers/Zookeepers are seeding our planet for? It's total and baseless speculation of course, but still fun for us to discuss. :)
@mikerogers4640
@mikerogers4640 5 лет назад
. . . but who created the Zoo-Keepers? Quis custodiet ipsos custodes?
@geoffreyzwegers3711
@geoffreyzwegers3711 8 лет назад
What about bioturbation caused by early worms? It could explain both the sudden disappearance of the Ediacaran fauna (because their niches based on microbial mats disappeared) and an increased abundance of nutrients, oxygenation of the soils and new niches needed for the Cambrian explosion. Besides, it fits the fossil data...
@Peter_Scheen
@Peter_Scheen 8 лет назад
Yes most probably there are more than one factors causing this, but for the sake of a relatively short video these are left out.
@johntillman6068
@johntillman6068 8 лет назад
The Ediacaran fauna largely fed on microbial mats. Their extinction is connected with the disappearance of these seafloor mats.
@melvinthompson6702
@melvinthompson6702 5 лет назад
Divine intervention.
@sandyacombs
@sandyacombs 8 лет назад
Where are the predecessors to the organisms of the Cambrian explosion? Common descent needs predecessors.
@eljanrimsa5843
@eljanrimsa5843 8 лет назад
+Sandy Combs Watch the video. They may be the Ediacarans. Unlikely because the Ediacarans look so different. Or they may be life form that lived at the same time as the Ediacarans but weren't plentiful enough to leave traces. Or they developed really explosively after the Ediacarans. We don't know. Science today does not know. We all appear to be descendants from some first multi-cellular life forms but that was much earlier, around 1-1.5 billion years ago. But the development from those first multi-cellular life forms to the Ediacarans and/or Cambrians is for now subject of research and speculation. Future generations of scientists may find out.
@pasainchina97
@pasainchina97 8 лет назад
The soft bodied ones that cant become fossils ?
@salasmomonicesalas1257
@salasmomonicesalas1257 8 лет назад
The soft bodied ones that cant become fossils , what soft bodied
@KinguCooky
@KinguCooky 6 лет назад
If it can be demonstrated that at least one body plan arose before -- in the Ediacaran -- then there is no debate and no _designer_ needed. www.trilobites.info/origins.htm
@williamchamberlain2263
@williamchamberlain2263 6 лет назад
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-hh0OKAuphyM.html here they are.
@OConnorCarr-b7l
@OConnorCarr-b7l 18 дней назад
Perez Michelle Gonzalez Edward Williams Joseph
@NeidlichesSchwert
@NeidlichesSchwert 3 месяца назад
"Life literally exploded"? This is a professor at a university from England. Depressing.
@carloisidoresalcedo6325
@carloisidoresalcedo6325 3 года назад
Beyond ridiculous these theories. How could thinking people believe any of these? Mindless mutation resulting to incredible biology.
@whateverrandomnumber
@whateverrandomnumber 5 лет назад
This is somewhat outdated. Newest theories go like this: there was no "explosion". Life was always abundant. It's just that for some reason have more specimens preserved from this era.
@SteveWray
@SteveWray 8 лет назад
My theory is that the Cambrian Explosion represents the evolution of retroviruses which can carry DNA between organisms. Suddenly lots of DNA started to get mixed and matched producing the explosion in diversity.
@duustincrawford2945
@duustincrawford2945 7 лет назад
Steve Wray evidence?
@olfersisapotato8970
@olfersisapotato8970 7 лет назад
duustin crawford Dude you don't need evidence for theories.
@markviking7617
@markviking7617 6 лет назад
Yes, you do...otherwise it is just a guess.
@amo6139
@amo6139 6 лет назад
mark viking *hypothesis
@markviking7617
@markviking7617 6 лет назад
Thank you...
@hm.91
@hm.91 29 дней назад
Beautiful Video! More than The Economist, this felt like The Ecologist
@ertegi64366
@ertegi64366 4 месяца назад
Can i say exterior inplantation? Or magic? Because i am not allowed to say DESIGN.
@Trev0r98
@Trev0r98 7 лет назад
I already know what triggered the Cambrian Explosion: a supernova or a gamma ray burst relatively close to the earth went off, and the radiation induced rapid chemical changes in all of the earth's Cambrian ecosystems, and it also induced rapid genetic mutations and diversity in the various species' genomes.
@wonderboy4993
@wonderboy4993 5 лет назад
Trev0r98 it’s possible
@Wolfhammered
@Wolfhammered 5 лет назад
So a gamma ray had a positive complexity generating effect and not a deleterious one? Seems very unlikely
@13thGenPatriot
@13thGenPatriot 7 лет назад
So eyes, nervous systems, stomachs and guts, and shells ALL "evolved" in just 10 million years. Wow. I thought evolutionary processes took hundreds of millions of years. Who knew random chance was so efficient at creating such widespread and rapid positive changes? So if evolution is so fast at producing such amazingly complex and diverse organisms (without transitional forms)...why has it stopped being so efficient and fast? Eyes evolved from light sensitive freckles to complex lenses capable of focusing and irises and specialized nerve cells and brain cells that interpreting it all in just a short 10 million years and all by random chance. Truly incredible...unbelievable...utterly fantastic. Such efficient evolution defies reason.
@KinguCooky
@KinguCooky 6 лет назад
The dripping cocksureness of the religious. You must be so incredibly knowledgeable.
@codyg6514
@codyg6514 6 лет назад
If god created the universe and everything in it, what/who created god? Basically what I'm asking is, If you believe life was created by intelligent design, what sort of processes do you believe created our creator? Do you believe it was an even more powerful god that created our god?
@williamchamberlain2263
@williamchamberlain2263 6 лет назад
Let me guess: you're holding out for your special invisible friend in the sky. Evidence - which no religion ever has :- ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-hh0OKAuphyM.html
@rogerfroud300
@rogerfroud300 5 лет назад
13thGenPatriot - I guess you haven't seen the long line of transitional fossils for the whale then? Perhaps you should learn how evolution works before lampooning it. Although the mutations are random, the selection of the consequent changes are most definitely not. Breeding of Dogs and Pigeons shows how quickly changes can happen when artificial selection is done by humans. It doesn't take millions of years to change these, so it's clearly a very powerful mechanism. So presumably, you think a God with a magic wand is a better fit for all of the data? That same God who's remarkable by his absence today in protecting the innocent from Cancer, natural disasters and accidents? At least it makes a change from those crackpots who say that their God did this 6000 years ago!
@HenryTheHedgeWizard
@HenryTheHedgeWizard 5 лет назад
Without transitional forms LOOOOOL. Every species that has ever existed is a transitional form you lead eating creationist idiot
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