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The momentous transition to multicellular life may not have been so hard after all 

Science Magazine
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Single cells had many of the genes and functions needed for complex life to evolve.
Learn more: scim.ag/2Kjutt7
Credits:
producer/editor/script/narrator
Nguyen Khoi Nguyen
supervising producer
Sarah Crespi
original story
Elizabeth Pennisi
graphics
collar cells
The Biology of Marine Animals
bit.ly/2tGjoXB
young sponge
The Cambridge Natural History
bit.ly/2tvYISY
multicellular yeast
V. Altounian/Science
photography
choanoflagellates (2)
Mark Dayel, dayel.com/choanoflagellates
crepidula fornicata
Joyce Pieretti, Manuela Truebano,
Saori Tani, and Daniela Di Bella/
Embryology Course at the Marine Biological Laboratory
adult amphipod
Longhua Guo/
Embryology Course at the Marine Biological Laboratory
juvenile of the longfin inshore squid
Wang Chi Lau/
Embryology Course at the Marine Biological Laboratory
veiled chameleon
Jake Hines and Nate Peters/
Embryology Course at the Marine Biological Laboratory
chlamydomonas globosa
Picturepest, bit.ly/2yKjq6B, CC BY 2.0
volvocales
Aurora M. Nedelcu, bit.ly/2lyhCEm, CC BY 2.5
gonium pectorale
Environmental Protection Agency
bit.ly/2lCTMao, public domain
volvox aureus
Zappys Technology Solutions
bit.ly/2Knt3Ng, CC BY 2.0
volvox aureus
Picturepest, bit.ly/2lCERgJ, CC BY 2.0
yeast
Marina Taikevich, bit.ly/2N1csgF, CC BY 2.0
saccharomyces cerevisiae
Pilarbini, bit.ly/2N33qQm, CC BY 4.0
video
squid development
April Dinwiddie, Jenna Judge, Lynn See,
Rachel K. Miller, Marie-Therese Noedl, Juliette Petersen,
Maggie Rigney, Ju Roscito, Brittany Shamenek,
and Nipam Patel
yeast snowflake confocal
Ozan Bozdag, Siyi Cao, Ali Zamani and Will Ratcliff
multicellular yeast time-lapse
Will Ratcliff
multicellular chlamydomonas time-lapse
Matthew Herron, Joshua Borin, and Will Ratcliff
developing embryos of the African clawed frog
Nipam Patel, Chenbei Chang/
Embryology Course at the Marine Biological Laboratory
stock video
Videoblocks
music
Nguyen Khoi Nguyen

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27 июн 2018

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Комментарии : 46   
@NSXTypeRGTRLM
@NSXTypeRGTRLM 6 лет назад
The videography here is amazing!
@luismiguelrodriguez1080
@luismiguelrodriguez1080 6 лет назад
Thank you for this video about the evolution of multicellularity, it's a interesting subject and we just are start to understand this transition. Specially, I like the part that you talk about Volvocine algae because I exposed about them in my Microbial Physiology class.
@brian4019
@brian4019 3 года назад
Not so hard? Can you imagine how many interactions single cell life must have had with itself for over 3 BILLION YEARS -- and was unable to create a multicellular organism during that time?
@notlisztening9821
@notlisztening9821 3 года назад
from what i can see, our estimate of when multicellular life began, is dependant on the first fossiles we can observe -> which were fungi. I suppose that since we can't travel back in time, scientists are cautious to make an estimate purely on how likely our current theories deem it, so instead we stick to what we can observe when creating a timeline.
@WokeandProud
@WokeandProud 10 месяцев назад
Ya because Oxegen levels were so low that was the problem life needs energy.
@GorgonLinguini
@GorgonLinguini 6 лет назад
How do we know that these cells represent cells that existed before multi-cellular life? Could they have evolved from multi to single celled organisms over the last 700 million years and retained their multi-cellular genes?
@sirmeowthelibrarycat
@sirmeowthelibrarycat 6 лет назад
Geoff Pullinger 😳 What you are asking is that life goes into reverse. There is absolutely no evidence of that happening. You wonder about ‘before’ multicellular life, yet the narration explains the status of early life as unicellular amoebas and similar. There is no evidence to suggest that the prevailing environment would require anything different. Today the only examples of ‘biological regression’ is where certain creatures no longer use sight as they now inhabit places in total darkness, or limbs because they slide through narrow crevices or burrow in soft ground.
@GorgonLinguini
@GorgonLinguini 6 лет назад
Never mind, just read the article.
@notlisztening9821
@notlisztening9821 3 года назад
@@sirmeowthelibrarycat that is incorrect. Loss of multicellularity is a known concept, that has happened in quite some fungi species. Idk about this experiment though and whether it was just some reactivated genes, or whether those cells actually gained those functions completely de novo.
@speedwagon1824
@speedwagon1824 Год назад
@@sirmeowthelibrarycat multiple beings have evolved from multi celled to single celled, like yeast and myxozoa
@WokeandProud
@WokeandProud 10 месяцев назад
We already had cells living in cooperative communities before multicellular life was even a thing is it really that hard to think it would take the next leap when enough energy from the environment (oxygen) provided itself.
@sirmeowthelibrarycat
@sirmeowthelibrarycat 6 лет назад
😺 What wonders can be found in the unicellular world! Chlamydomonas and Hydras were part of my Grammar school biology curriculum in the 1960s! Abiogenesis is becoming more defined by the day! Astounding colour photography! Biology rocks - or should that be Geology?
@pacoserran1566
@pacoserran1566 3 года назад
no se entiende nada no hay subtitulos en español
@pocholoo
@pocholoo 3 года назад
yaya esque son mas tontos
@pacoserran1566
@pacoserran1566 3 года назад
@@pocholoo tienes toda la razon
@gregorius790
@gregorius790 6 лет назад
WoW. Thanks
@boson2916
@boson2916 2 года назад
Wow, transition to multicellular life seems so simple like the Big Bang.
@pound4pound380
@pound4pound380 8 месяцев назад
That's a hell of a leap of faith
@tims5268
@tims5268 7 месяцев назад
Far smaller leap than 'God did it'.
@pound4pound380
@pound4pound380 7 месяцев назад
@tims5268 explain to me why do feel like it's far smaller than an intelligent designer? I'll respond as best as I can but I want to see if you have proper education on the topic
@tims5268
@tims5268 7 месяцев назад
@@pound4pound380 Well as the video says, choanoflagellates whilst single celled resemble the cells that make up sponges (the most simple animal we know of and therefore likely the oldest). Genes have been found in said choanoflagellates that for a long time we thought were exclusive to multi cellular animals showing that this single celled organism is equipped for multicellular life. We can also witness clusters of single celled organisms behaving in a similar fashion to multicellular organisms. Experiments with Chlamydomonas have shown that multicellularity can arise quicker than we thought, now imagine that process over millions of years. Sure, we don’t have all the answers but what was once considered a big gap is getting smaller and smaller as we learn more. But to go beyond what is discussed in the video, we have 3.5 billion year old fossils of single celled organisms. The oldest fossils we have of multicellular organisms are 600 million years old. Which leaves us with two ‘leaps’ to consider. Either God created single celled organisms then hung around for billions of years before taking the next step and introducing multicellular organisms OR a change in environment or some other mechanism we do not yet understand led to single celled organisms evolving into multi cellular organisms. The ‘God leap’ explains nothing at all, literally nothing, if anything it is in opposition to what any holy book actually states - the ‘evolution leap’ isn’t that much of a leap as we have sound logic for why it happened, several hypotheses, and observable traits and behaviour in both single and multicellular organisms, cells that seem to be on their way to multicellularity and can witness cells forming a kind of multicellularity. As for my education, I have a bachelors in Forensic Science and a masters in toxicology. Not exactly the same as this subject but I am a student of science. Now your turn, why do I get the impression that your education on this topic is ‘watched some creationist youtube videos that claim to debunk evolution’ despite it still being regarded as one of the most proven theories in science by 98% of scientists (including Christian ones).
@drd6482
@drd6482 2 года назад
silence
@drd6482
@drd6482 Год назад
NOICE #thatsbetter #obviously #hahahahahahhahahaha #goodonedave #yeahboi
@virtuerse
@virtuerse 6 лет назад
Naisu
@grNephrite
@grNephrite 6 лет назад
So... like ants.
@francoisdallaire4835
@francoisdallaire4835 3 года назад
you know you're watching a shit video when the narrator says "scientist say" without referring to any specific study, made at a specific time by a specific group of people.
@mmhoss
@mmhoss 3 года назад
Check the description dipshit, every single claim is cited lmao
@froglover4203
@froglover4203 2 года назад
@@mmhoss lmao
@hammalammadingdong6244
@hammalammadingdong6244 Год назад
You can read the full article by clicking the link in the description. Researchers and their studies are listed there.
@thanglaka9543
@thanglaka9543 6 лет назад
One of Buddhism's 5 precepts is not take a life of living. At Buddha's time, no microscope and thus Buddha didn't know about microbiome in his body also.
@10697018
@10697018 5 лет назад
Yea, way less than a billion years ago, more like 6,022 years ago.
@user-ik2yi4fm1u
@user-ik2yi4fm1u 4 года назад
Science disagrees
@WokeandProud
@WokeandProud 10 месяцев назад
Okay hillbilly joe now run on back to your trailer park with your cousin wife and STFU.
@RadarLightwave
@RadarLightwave 6 лет назад
Take that Creationism, for another gap has been filled!
@SuviTuuliAllan
@SuviTuuliAllan 6 лет назад
But the Earth is flat because it's two sides are man and woman and there are only two genders therefore ergo Creationism wins and Tupac lives
@tdya1
@tdya1 4 года назад
Wait till someone examined it and discover the truth and as usual Nature and Science will publish it but without a video like this
@musicjunk8266
@musicjunk8266 Год назад
@@SuviTuuliAllan you forgot to include Elvis in your model but otherwise correct.
@HealthAndHomestead
@HealthAndHomestead 4 месяца назад
In the study yeast became clumps of yeast. Not quite as amazing as some might think. Plus, as they said, the genetic material was already there. It was evidently not new genes.
@MrLeGip
@MrLeGip 3 года назад
So God isn’t real?
@JonSnow-qi9ek
@JonSnow-qi9ek 3 года назад
No. That was just a concept to induce fear in the minds of primitive people who lived thousands of years ago, so that they can be controlled.
@brian4019
@brian4019 3 года назад
@@JonSnow-qi9ek primitive people have very little understanding of what the sun is, or why it rains, or many other powerful and natural phenomena. Seems natural to explain this by assigning a "god." I would say that is the origin, which was later abused at times to keep people under control by the threat of eternal damnation.
@ericajones8923
@ericajones8923 2 года назад
of course the one true GOD is real and so is heaven and hell!
@WokeandProud
@WokeandProud 10 месяцев назад
Never was.
@BR-hi6yt
@BR-hi6yt 2 года назад
Don't waste your time on this video. Sorry, nice try though.
@daMillenialTrucker
@daMillenialTrucker Год назад
4 years later and y'all were proven wrong 😂 the goal post has been moved 1 light year away since this video. Us and our kids will all die before they figure out the origin of life. Nobody has created abiogenesis in a probiotic setting, to date.
@WokeandProud
@WokeandProud 10 месяцев назад
Your dunning Kruger effect is very strong. Origin of life research is actually very robust and has alot of evidence supporting it cope.
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