Mind-blowing Experiment Evolved Multicellular Life In Just 600 days

Hello and welcome! My name is Anton and in this video, we will talk about incredible new experiment that shows how multicellular life may have evolved
Links:
#life #evolution #fermiparadox

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Images/Videos:
Bozdag et al., Nature, 2023

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[dylangtech]

Such behavior is quite common in Fungi, but the fascinating part is that through these conditions, the scientists basically “unlocked” hidden functionality that we normally never see in yeast. They made it behave like other fungi

[jasonyoung]

I remember a study, over 10 years ago. They had single cell organisms in a petri dish, happily munching and dividing. The scientists introduced a predator cell, and after many generations, the original cells began clumping into multi-cellular form, able to fight off the predator cells. The new multi-cell life eventually settled on 8-cell clusters, which was big enough to defend itself, but small enough to still have all cells able to feed at the same time.
Then the scientists removed the predators cells.
The surviving single cell organisms, and the new 8-cell clusters, continued to multiply as different species.

[AGDinCA]

The lack of oxygen being a catalyst for cell evolution actually makes sense. We know that Earth has gone through a few oxygen-deprived cycles in the past; if those timelines match up with explosions in the fossil records, I think it would lend serious credence to these experimental results.

[travisporco]

this is kind of a dubious experiment; yeast is after all member of the fungi kingdom, and fungi can be multicellular. Maybe yeast has multicellular ancestors, or even a multicellular form that can be adaptively triggered.

[-jeff-]

TY Anton for being as informatime behind a microscope as you are behind a telescope.

[Milark]

Last time I was this early I was still a single-celled organism

[micmacha]

This reminds me of Kleiber's Law—a creature's basal metabolic rate scales at roughly (3/4) power of its mass. This is one of the chief explanations for deep sea gigantism. It really isn't hard to create a circumstance in which multicellular life provides a distinct benefit.

[MeissnerEffect]

An entire planet, even an entire regional ecosystem would not require oxygen deprivation either. Say an underground lava tube system or cave system whose oxygen became limited due to collapse, or water, air or growth medium became mildly toxic etc. What a fantastic study! Thanks Anton as always! 🦋✨

[darkwing]

Yeast is pretty adaptable, so I'm not surprised that it could clump together. But it's ability to specialize individual cells is pretty amazing. And I don't think this has any impact on the Fermi paradox unless they can prove that this is a caused by a mutation. It's more likely to be a product of altered gene expression. If this is a characteristic of yeast that is normally repressed, then it doesn't seem to have much to say about how likely it was to have evolved in the first place.

[rupertmiller]

When Anton says the word "hypothesis", my brain makes happy chemicals.

[montylc]

This gives an entire new meaning to "yeast infection". Great video by the way.

[JamsGerms]

It was a nice surprise to see my footage in this video.

[OneLine]

It seems more like a colony of cells, nothing that we generally consider "multicellular". It's certainly not a new life form.

[pnf]

I had a grade 10 teacher who brilliantly had the class each build their own glass encased environment to mimic the beginning of life with proteins and rocks and then he electrified them, each one. I'd love to say we discovered how life began, of course I'd be lying. What I discovered was how to think and hope and believe and love Science. We were working on the greatest experiments of all time and we were 15, that was one of the greatest class lessons of my entire life. Thank you Mr. Campbell of Overlea SS in Toronto back in the late 70's early 80's!!!

[andycordy]

Hugely exciting. The comparison between collaborative colonies, multiplying successfully in stable conditions, might show us how codependent single cell life forms eventually become symbiotic and amalgamate into multicellular forms as we observe them in adversity. I think it's important to distinguish between a colony which is made up of single cell organisms of one type and codependent communities of different organisms.

[davidvictory]

Yes I caught this video when it first came on. It's the little things that make my day better

[roboslug]

My theory is that some early bacteria saw an episode of Voltron and decided it looked super awesome.

[roowasse]

Best... content...on... YouTube 😄As always, bro, you do a great job and I'm always gonna be here to support it. Gettin' my wonderful person hoodie next month 😁Thank you for your hard work!

[shanoukgaming]

Be interesting to see what happens if they slowly over time reintroduce oxygen

[arctic_haze]

Multicellular life needed oxygen to be possible but it is true that it started at a time when oxygen (provided by cyanobacteria) was scarce and possibly only local (around cyanobacteria colonies). So maybe the experiment has woken up some mechanisms from that era hidden in the genome of the organisms.