What Was the Ancestor of Everything? (feat. PBS Space Time and It’s Okay To Be Smart)


Comentarios • 1 196

  • OneStauffder Sirynch
    OneStauffder Sirynch Hace 4 días

    Yeah kiwi!

  • The AMV TOP 50
    The AMV TOP 50 Hace 5 días +1

    Well, maybe it was stored in YOUR NA, but not in mine...
    Oh!! Stored in RNA!! Not our... NA...

    Ok the show's over folks. I'm just cleaning up. Next show is in 20 min, you have to exit and pay again if you want to see it again. Not my rules, I just work here.

  • Carmen D'Intino
    Carmen D'Intino Hace 6 días

    that was the best one yet

  • Michael C
    Michael C Hace 7 días

    I’m the start of life, you know why, cos LUKA, I am your father

  • Lumpmasta
    Lumpmasta Hace 8 días +2

    408 evolution deniers

  • A G
    A G Hace 12 días +1

    I would like to know how brain cells collectively work together to make each of us conscious, and when they die, of course, that consciousness comes to an end. It seems like the lower forms of life don't have consciousness because they don't have these cells.

  • Walteria Music
    Walteria Music Hace 12 días

    The first organism suddenly appeared on Earth with No Simple Precursor about 3.8 billion years ago........ Stromaolite

  • Charlotte Dubois
    Charlotte Dubois Hace 13 días

    Can you make a video based on genetics, biophysics, geography, and crashing space rocks of old, that may find LUCA from an asteroid that interacted with volcanoes? Or something like that and what research is being done in that area?

  • MossyGolem
    MossyGolem Hace 17 días

    My brother's name is Luca...

  • Razamadaz
    Razamadaz Hace 17 días


  • QTee
    QTee Hace 18 días

    And you know what, i dont care, i have to suffer this life regardless a what

  • QTee
    QTee Hace 18 días


  • Daniel Hristov
    Daniel Hristov Hace 19 días

    Please make a video that shows all descendents from luca to the homo sapiens. I want to know what were the names and how our ancestors looked like. I want to see our tree.
    :D PBS Eons is the best!

  • Brian Meyrick
    Brian Meyrick Hace 19 días

    Illuminating! What bugs me is the idea that we all have a common ancestor of the human kind, like a 'mother' way back when. Such bollux assumes a linear evolutionary path which I find quite hard to believe .. all this biblical begetting as if that was always the way. We are the synthesis of many paths yet people want to adore Lucy for example or some mythical ancestor of her's. The LCD approach to genetics is futile, the HCF approach is more likely to shed some light.

  • D. J. Scott
    D. J. Scott Hace 23 días

    LUCA was probably mesophilic (preferred what we would call "room temperature") or possibly even cryothermic (cold-dwelling), not thermophilic (heat-dwelling) or hyperthermophilic (like hydrothermal vent organisms). The common ancestor of the bacteria probably lived in or around hydrothermal vents, as did the common ancestor of the archaea, but not the common ancestor of the archaea and the bacteria.

  • Otto Lehikoinen
    Otto Lehikoinen Hace 24 días +1

    Well, this is more probable than a single proto-human language.

  • S
    S Hace 24 días

    Please make videos about Human’s First & Its Evolution of:
    1) Art
    2) Language
    3) Mathematics
    4) Science
    5) Cultures
    6) Traditions
    7) Communities
    8) Exploration
    9) Trades
    10) War

  • Zoë de Wijn
    Zoë de Wijn Hace 27 días

    does hank have a hanklerfish belt buckle? :P

  • isse roble
    isse roble Hace 27 días


  • Choco lad
    Choco lad Hace 28 días

    >infinity war is the most ambitious crossove-
    hold my beer

  • JPL Toy Experience
    JPL Toy Experience Hace 29 días +2

    My name is LUCA
    I live on the second floor
    I live upstairs from you
    Yes I think you've seen me before

  • International Harvester

    "we interrupt your regularly scheduled ESclips video..... to remind you to please donate to PBS"
    🙂 "our goal today........ "

  • tiffany norris
    tiffany norris Hace un mes +1

    Love this! Love to see more about phylogenetic stuff like this

  • #Rossy's Corals
    #Rossy's Corals Hace un mes +1

    UCLA is a wonderful university

    • Otto Lehikoinen
      Otto Lehikoinen Hace 24 días

      They just have their acronym letters mixed up, LUCA ≠ UCLA.

  • Vanadyan
    Vanadyan Hace un mes

    Go PBS force, form Nerdtron!

  • Jon B
    Jon B Hace un mes

    How about when did life forms first appear on land?

  • Bruce Wayne
    Bruce Wayne Hace un mes

    Why is the name of our supposed common ancestor male 🤨🤔?

  • A-dutch-Z
    A-dutch-Z Hace un mes

    One cell man.

  • Jude Njilah
    Jude Njilah Hace un mes

    Where does viruses fit in that equation? I think they and LUCA were BFF's

  • Brotista Briztefication

    It’s scary when you realize we’re not the top of the food chain. The true Kong’s of the Jungle...microorganisms

  • Greg The L
    Greg The L Hace un mes +1

    You are an exceedingly effective communicator. I really enjoyed this video. Thanks.

  • serty chui
    serty chui Hace un mes +1

    I tell everyone about you guys all the time!!!!!!!!!!!!111

  • Fresh Boy
    Fresh Boy Hace un mes

    oh my god, Hank is a master of disguise.

  • James Petherick
    James Petherick Hace un mes +1

    Simplest RNA like replicator, with a definition of all life must include 1. Replication 2. Mutation 3. Information Storage

  • dfuzzybuzzy
    dfuzzybuzzy Hace un mes

    Voltron assemble!!

  • max pieps
    max pieps Hace un mes +1

    i heard luca lives on the 2nd floor

  • Cody Stearley
    Cody Stearley Hace un mes

    Very interesting, reminds me of J.F. Gariepy's phenotypic revolution.

  • Dane Seto
    Dane Seto Hace un mes

    who said LUCA ever went extinct?

  • h e l p m e
    h e l p m e Hace un mes

    Marvel: Infinity War is the most ambitious crossover in cinematic history.
    PBS Eons: Hold my beer-

  • Vanessa  Shantae
    Vanessa Shantae Hace un mes +1

    ESclips needs to become a university. Guaranteed 100% success. I learn way too much.

  • squakerboy
    squakerboy Hace un mes

    "the first species, Darwin himself-"

  • Meteor4
    Meteor4 Hace un mes

    4:18 plot twist they arnt actualy the same person (this whole time i thought they were the same ) XD

  • Zach Chang
    Zach Chang Hace un mes

    That bacteria and ukariote things seems to ignore many deep water life forms that seem to have evolved from an enitrely different luca than any other animals

  • Petitio Principii
    Petitio Principii Hace un mes

    I wonder how this kind of LUCA research informs about potential bio-signatures of extraterrestrial life.

  • Vicente Luis Montenegro

    The perfect crossover

  • Ashlee Knowlton
    Ashlee Knowlton Hace 2 meses

    Had to share this random thought... What if life already existed before the solar system was created and actually leached out from the interior via thermal vents?

  • Tim Meyer
    Tim Meyer Hace 2 meses

    Why is there only 1 LUCA? If there was primordial soup ponds in various locations around the globe, couldn't it be possible that a different single cell organism came into existence at a different location? Even if a couple million years separated the two different species, couldn't the slow pace evolution allowed each organism to gain a foothold? Even if there was only one primordial pond, isn't it possible that the pond spawned more than 1 single organism? Why must all life evolve from 1 single organism? Why can't some life forms evolve from a different organism? Could some similarities between species been caused by creatures copying a mutation rather than evolving from it? Is it possible there was a second genesis of life on Earth or even more?

  • HeyNowLookHere
    HeyNowLookHere Hace 2 meses +1

    I don't know what it is, I can't stop watching this. It's mind boggling indeed

  • Ali A. Dhillon
    Ali A. Dhillon Hace 2 meses

    What was so extraordinary those days that out of nothing these #Progenotes appear out of nowhere with genetic information about what. Why now days things don't appear out of nowhere with some genetic information and start a new form of life. I always struck on this question of out of nowhere started big bang and the out of nothing started first single cell organism with I don't know about what genetic information. Is it science or Magic where things appear out of nowhere..

  • Upsilon TwentyThirteen
    Upsilon TwentyThirteen Hace 2 meses +1

    Thank our lucky stars for helpful educational content like this. There's so much ignorance and anti science all over youtube we need all the science we can get.

  • dilophosaurus sk
    dilophosaurus sk Hace 2 meses +1

    thanks luca!

  • Venus Gillespie
    Venus Gillespie Hace 2 meses

    I have a classmate named Luca

  • Luis G A
    Luis G A Hace 2 meses +1


  • Scott Cold, DDS
    Scott Cold, DDS Hace 2 meses

    What about PUKA? Didn't he live on the second floor?

  • Rasal
    Rasal Hace 2 meses +1

    But why

  • Andreas Wagner
    Andreas Wagner Hace 2 meses

    It absolutely makes sense to look for LUCA in oxygen free environments.

  • DavenH
    DavenH Hace 2 meses


  • Trey Irvin
    Trey Irvin Hace 2 meses

    Think of this one day we might described something that might seem like magic to us

  • tross
    tross Hace 2 meses

    Why do human males have larger hands and feet than females? Direct survival advantage to species? or mating display like mammary glands or peacock feathers?

  • Dani Blumstein
    Dani Blumstein Hace 2 meses

    When you use the word genes are you talking about loci or coding regions of the genome? I have a feeling the second one but its unclear.

  • John Johansen
    John Johansen Hace 2 meses

    I'm sure LUCA live next door to me!

  • Medlock Jodengrad
    Medlock Jodengrad Hace 2 meses

    Thanks, now that you mentioned "cats have genes to grow fur and not scales" i now have fear of snakes with fur.

  • Yiglic Persfactious
    Yiglic Persfactious Hace 2 meses

    Convergent evolution throws a huge wrench in the whole LUCA debate.

  • asher platts
    asher platts Hace 2 meses

    If the laws of physics work the same at all points in time, it would seem that cellular life should have randomly occurred many times over, and because the building blocks of that life are the same, the basic functions of cellular life would be recreated as well. Like, wheels need to be round, so the wheels that are invented separately by different cultures are going to function pretty much the same way and be made of pretty much the same stuff. Endosymbiosis seems to have happened more than once with chloroplasts, and continues today in Dinoflagellates that are unable to synch the division of their tertiary chloroplasts with their own cell division, and so only one of two daughter cells get the chloroplast, while the other needs to capture a new one. Certainly this doesn't represent a primary endosymbiotic event, but it does show that endosymbiotic events still happen. There is also evidence of at least one other primary endosymbiotic event in a species of freshwater algae, in which the chloroplast retains the peptidoglycan wall of the cyanobacteria, yet the genome of the cyanobacteria is reduced, as in other primary chloroplasts, showing evidence of endosymbiosis, though much less reduced. This puts the endosymbiotic event in the distant past for humans, but in recent history for chloroplasts.
    The same proteins, show up over and over again in various species, like the rhodopsin of some types of photosynthetic bacteria, is the same carotenoid found in our own eyes that allows our retinas to function, because in both uses it allows the capture of a photon and the transfer of it's energy to do cellular work. Though their eyes developed independently, rhodopsin is found in arthropod's compound eyes as well. This isn't evidence that our eyes, arthropod eyes, and photosynthetic bacteria all are closely related, it's evidence that the same chemicals perform the same functions when their constituent parts are arranged in a specific way to produce that greater structure. The function and form are linked.
    Another example involving eyes: The eyes of Cephalopods and Humans evolved entirely independently but both our lenses are made of the same crystallin proteins, and both species developed the DNA to code specifically for it. The same building blocks of amino acids, translated by ribosomes, folded in the same way by various actions, will always produce the same proteins, because the form and function are intrinsic to one another, and both follow the laws of physics and chemistry. A crystallin must be made the same way, because that arrangement of matter creates that thing, and that thing's properties, from it's arrangement, allow it's function.
    Why then do we assume that all life is descended from a single common ancestor? I don't think that the similarities that we see between different phyla necessitate that all life is related by a single common ancestor. That is an assumption. Very simple cellular life could have arisen a number of times, and produced similar results, because life must follow certain chemical and physical laws to function, and the molecular building blocks of life are entirely defined by their form and function. Given the same circumstances it should arise again and again.
    TL;DR I think Wose was right about progenotes.

  • Lucky - Black-Cat
    Lucky - Black-Cat Hace 2 meses

    My dog’s name is Luca

  • B A
    B A Hace 2 meses

    Take the simplest organism, like something in Archaea, and start ripping out genes randomly until the simplest thing can't live without every BP. 🧬

  • Fay Rodis
    Fay Rodis Hace 2 meses

    Thank you!

    • Fay Rodis
      Fay Rodis Hace 2 meses

      Well if they are from Earth , the are related through LUCA 😉

  • Shinchonee Rakshit
    Shinchonee Rakshit Hace 2 meses +1

    Eons and it's okay to be smart are one of favourites from PBS

  • XxExoticButterzxX
    XxExoticButterzxX Hace 3 meses +1

    I'd like to just destroy whatever LUCA was and see what happens

  • Ashley Alexander
    Ashley Alexander Hace 3 meses

    This video gives a great example of how much we have to learn from microbes! I'd love to see a video just dedicated to the amazing diversity and complexity of microbes!

  • Eddie  Inscore
    Eddie Inscore Hace 3 meses

    Can there be more then one loku

  • angelo tejada
    angelo tejada Hace 3 meses

    Have you made a video on the origin of spoken language yet? That really boggles me to the wee hours of the morning! Thanks.

  • MinecraftBoy4237
    MinecraftBoy4237 Hace 3 meses

    Just think... if you don’t have babies your ending a line of ancestry that goes back literally billions of years. Get off Fortnite

  • Ryan May
    Ryan May Hace 3 meses

    Order requires a force to exist

  • Jon B-C
    Jon B-C Hace 3 meses

    4:13 Hank Green and Joe Hanson in the same 10 seconds, I am ELATED

  • Gameplayevi sa Lukom
    Gameplayevi sa Lukom Hace 3 meses

    Now im so proud that im called Luka

  • Pikachu and pichu with friends

    Every time you get an F- on your test
    Your making Luca be disappointed

  • Sylkis89
    Sylkis89 Hace 3 meses

    What if the universal bit of genome we try to identify doesn't come from LUCA but at some very early stages of live on earth let's say there were hundreds of species of simple organisms and a virus implemented that bit of genome into each and every single one of them, or at least into each and every one that survived and lived to tell its genomic tale?

  • Suly M
    Suly M Hace 3 meses +2

    what if we have more than one common anscestor? whats the possibility of two lucas developing at the same time?

  • Dávid Abonyi
    Dávid Abonyi Hace 3 meses

    Sooo could we reconstruct LUCA by cutting away all but the universal genes of an organism and then inserting that into an empty cell?

  • Pup314
    Pup314 Hace 3 meses

    Hi, my name is Luca, I lived in the Archean era.

  • 熊耳マナ
    熊耳マナ Hace 4 meses

    I'm extremely curious about the very first life. Before LUCA

  • CerberaOdollam
    CerberaOdollam Hace 4 meses

    hold up, so if something that is most distant from evrything else goes extinct, the LUCA title is given to something more recent, right?

  • Chuck Just Chuck
    Chuck Just Chuck Hace 4 meses


  • Frank Demarco
    Frank Demarco Hace 4 meses

    wear did the sugar come from?

  • Nguyen Pham
    Nguyen Pham Hace 4 meses

    bur then Thanos killed half of us...

  • Connor Coulson
    Connor Coulson Hace 4 meses

    So no matter what, it's probably some boring featureless little germ. Got it.

  • Joseph T.
    Joseph T. Hace 4 meses

    Seems we evolved from different types of bacteria just like we evolved into different species afterwards depending on environment factors.

  • Oran Lichtman
    Oran Lichtman Hace 4 meses

    You should talk about the Oxygen crisis, I don’t really know much about it
    ...Never mind I just watched that video how about when plants got leaves

  • Fermin Naelga
    Fermin Naelga Hace 4 meses

    Progenotes sounds like a virus...

  • Humble Evidence Accepter
    Humble Evidence Accepter Hace 4 meses +1

    If I were to imagine the perfect ESclips Science channel, it would be this. Informative, but doesn't insult my intelligence. Comprehensive, but in about 10-minute blocks. Exciting, but never presented with unnecessary drama. Very well done folks. Very well done.

  • dizzyolly
    dizzyolly Hace 4 meses

    I know this video is old but I want to learn about early homosapien interaction with others “homo” species, Mabel homo erectus!

  • Arian Terra
    Arian Terra Hace 4 meses

    I always wonder, why all lifeforms transfer information via DNA/RNA? Is it possible to transfer genetic information without DNA? Why DNA become the most popular method of transferring information? Is there any lifeforms which doesn't use DNA/RNA?

  • Captain Qwaz Caz
    Captain Qwaz Caz Hace 4 meses +1

    When you know someone called Luca and you hear he lives in hydrothermal underwater vents.

  • Alex Smith
    Alex Smith Hace 4 meses

    Live ur videos!

  • Jim Mauch
    Jim Mauch Hace 4 meses

    Could a LUCA be understood through all the tangled mess of early horizontal gene transfer?

  • Supertyp
    Supertyp Hace 4 meses

    I believe there was not one LUCA but multiple. It's possible that the earliest forms of RNA have existed in some kind of a goo, maybe encapsulated by micells of triglcerides (fatty acids + glycerine.).These might have shared molecules, proteines and genes that gave them chemical advantage over other specimen until eventualy some became complex enough to survive on their own.

  • Yakarot Sennin
    Yakarot Sennin Hace 4 meses

    How far back in time could a stranded time traveler still survive by living off the land?

    • Skaianet
      Skaianet Hace 2 meses

      Yakarot Sennin
      That’s exactly what Allergies are, our immune system attacking things that aren’t actually deadly. Going so far as to accidentally kill us in the process.

    • Yakarot Sennin
      Yakarot Sennin Hace 2 meses

      How so? Wouldn't our immune system be able to still diagnosis it as foreign and attack it regardless?

    • Skaianet
      Skaianet Hace 2 meses

      Yakarot Sennin
      Not that far, you’d be allergic to anything humans didn’t evolve alongside.

    • Polydynamix
      Polydynamix Hace 4 meses

      100's of millions of years, around the formation of... um... land. Prior to that a time traveler would have to do a lot of swimming, like 24 hours a day.

  • Mark Grace
    Mark Grace Hace 4 meses

    I’m occasionally puzzled by the breathless fawning over humanity’s quest to know our origins. Admittedly a relatively few powerful people have swooned over that idea. And I suppose if prompted I might dig up some Gratitude or that quest. Mostly I just get really tired of the way this quest is twisted to serve ideological agendas. Not much different than the ancient origin stories.

  • Andi Garcia
    Andi Garcia Hace 4 meses

    I think as that thermal vent species thrived there were only so many vents so when they became too many for their environment had to have other things to feed on.