Scientists are obsessed with this lake - Nicola Storelli and Daniele Zanzi

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Explore the depths of Lake Cadagno, a meromictic lake that is considered a model for Earth before the Great Oxidation Event.
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In the millions of years since oxygen began saturating Earth’s oceans and atmosphere, most organisms have evolved to rely on this gas. However, there are some places where oxygen-averse microorganisms like those from Earth’s earliest days have re-emerged. And one such place is hidden high in the Swiss Alp’s Piora Valley. Nicola Storelli and Daniele Zanzi dive into the depths of Lake Cadagno.
Lesson by Nicola Storelli and Daniele Zanzi, directed by Ivana Volda, Thomas Johnson Volda.
A special thanks to Francesco Di Nezio, Bruno Giussani, Raffaele Peduzzi, Sandro Peduzzi, Samuele Roman, and Mauro Tonolla who provided information and insights for the development of this video.
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13 май 2024

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Комментарии : 373

@madelinekusuma4009 26 дней назад

this explains how Spongebob has a beach underwater, the thing that has been bugging my mind for years

@sudosu078 26 дней назад

Thank you for this much needed clarity!!

@tomatoheadfd 26 дней назад

Yeah that's a good point. Their water is denser. Fun to think it as it's basis in r~eeeelaislity

@derrickmartinez9838 26 дней назад

How did that pineapple wind up there?

@Carlos-bz5oo 26 дней назад

Brine pools dot the ocean floor like undersea rivers and lakes

@jennastephens1224 26 дней назад

I always assumed it was an oil seep because of the color and the name ("Goo Lagoon") but this makes sense too!

@bt5294 26 дней назад

The animation quality is next level. I forgot i wasn’t looking at actual bacteria

@harrymills2770 21 день назад

My rule of thumb: The better the animation, the more tenuous the connection to reality, especially when it comes to start-up proposals by fly-by-nighters.

@Shogunwario 19 дней назад

What a brown nose

@signemarkuson1940 3 дня назад

I agree

@seanteszler3911 26 дней назад

I never understood why we assume that alien organisms would breathe air and need water.

@nikunjkhangwal 26 дней назад

Exactly my thoughts.

@TP-om8of 26 дней назад

They might breathe water and need air.

@juniorgod321 26 дней назад

Theoretically speaking, all living things need water in order to survive!

@8889francisjose 26 дней назад

They might be also carbon life forms

@ThrillSeeker3524 26 дней назад

They may not, but our best first step is to look for planets enough like our own to support life as we know it

@penguinscanfly5796 26 дней назад

the 'Great Oxidation Event' and the 'Great Oxygen Catastrophe' sounds like something youd hear in a movie lmao

@notamoose231 26 дней назад

Stupendous Oxygen Fart

@IMasterSkeptic 24 дня назад

That's a very narrow feeling ,atleast not even continental,forget global Do other things also besides watching movies

@harrymills2770 21 день назад

@@IMasterSkeptic That's a very condescending attitude.

@billiesbeat13 24 дня назад

Crawford Lake Ontario Canada is also a meromictic lake. Somewhere on the bottom, my Dad's sunglasses lay preserved forever.

@kentas1087 22 дня назад

That sunglasses would be broken down by bacteria by now😂

@dhararry7929 26 дней назад

It's like a natural time capsule!

@4RILDIGITAL 26 дней назад

The concept of oxygen as a toxic gas is surprising. It's fascinating to consider how the Great Oxygen Catastrophe really shaped the evolution of life on Earth.

@davidcochran595 23 дня назад

Evolution was a theory and now we know thru DNA that evolution is impossible.

@KristenRowenPliske 12 дней назад

Oh yeah. High doses of pure O2 can blind you. At the very least, it can damage your teeth.

@Echo81Rumple83 11 дней назад

It's technically poisonous to us as well, but only in very, very large amounts. It's why the humans in the Avatar movies have to use those rebreather devices. I'm still a bit perplexed on why oxygen is considered poisonous in the first place.

@nigelmcculloch3746 День назад

It's surprising how people believe there's theories, this all happened by accident and we ended up with what we have on the earth now!!!!,the diversity of life on this planet crys out design and harmony not a series of chances!

@calihhan4706 26 дней назад

Underwater water

@jaded5501 25 дней назад

Under underwater

@dronzerdanks7163 16 дней назад

UnderUnderwaterWater

@Ak-xr2kj 14 дней назад

Under underwater water

@john-hl4hw 12 дней назад

Water under water

@sporter113 26 дней назад

What gorgeous animation! Bravo!

@Jdog1681 26 дней назад

I've been researching this for some time!! As a follow up to this you should do a video on the horrors of limnic eruptions (can only occur in meromictic lakes). I can't believe I'm just learning about them. They could be the irrational fear replacement for the next generation and overthrow quicksand and sharks!

@Camaika1997 25 дней назад

Just wait until you hear about the carbon cycle in the oceans. TLDR, CO2 enters the water towards the north, travels all across the world and is eventually released again, a few thousand years later. Now if we think about what has been happening since industrialisation.....

@Carhintoda 21 день назад

They already have one they did about an actual incident that occurred

@Jdog1681 21 день назад

@@Carhintoda Ted does? I can't find it. What's the video title?

@Carhintoda 20 дней назад

@Jdog1681 I went looking and it's not Ted, it was SciShow. Sorry. If you still want to watch it, it's called "Limnic Eruptions: When Lakes Explode". Again, sorry, my bad

@Jdog1681 20 дней назад

@@Carhintoda No worries, simple mistake. Thanks! I'll head on over :)

@simranmalhotra7364 25 дней назад

I never knew about such kind of lakes or the fact that oxygen was once a 'poisonous gas' that caused so much extinction. It's all so fascinating. The lake seems like a time capsule that we can look intoto know about ancient origins and evolution of life on earth. I just wish that our research doesn't end up causing harm to the unique and delicate ecosystem of such lakes. Thank you Ted-Ed for such and intriguing and informative video, as always !!🙂🙂🙂🙂

@harrymills2770 21 день назад

Does a bear give thought to Nature's balance when it drags down a moose?

@simranmalhotra7364 19 дней назад

@@harrymills2770 The bear dragging down the moose IS A part of nature's balance (food chain, yk) however, humans diving into such lakes/ rivers/ oceans is not.

@harrymills2770 19 дней назад

@@simranmalhotra7364 Do you think humans are some alien species from another planet? We're also a part of Nature. As far as we know, we're the only part of Nature that has self-awareness and can consciously effect change in the environment. The only real issue is how we use our intelligence. My point is that if we were ONLY a part of Nature, then we wouldn't even give thought to the harm we do. We would just eat and grow to the maximum extent possible, like all OTHER living creatures. The bear doesn't worry that moose are endangered if it has a moose in its sights. Mass extinctions happened long before humans ever came along.

@The_Observer_god 26 дней назад

"These bacteria's aren't aliens but rather our distant cousin" - An observer

@Sahil.1 23 дня назад

Just forgot that its animation done in such a professional way

@evanlucas8914 25 дней назад

Look up "Green Lakes State Park" in New York, near Rochester. It's just outside Rochester. It's also a meromictic lake. The water is crystal bluish green

@jinhwi 26 дней назад

Amazing video with interesting knowledge. It's definitely helpful to me! Thanks so much.

@gbovm 13 дней назад

the illustration is somehow soothing ❤

@alfrancisbuada2591 26 дней назад

This is so cool! And I learned so much from this video. Thank You TED-ED!

@shahpen3814 24 дня назад

This is my 5th time watching this video because I usually fall asleep half-way thru watching it.

@achsidecough7184 24 дня назад

Can't blame you for that ,narrative's voice is sooo relaxing

@cloudgoose 5 дней назад

the illustration/animation in this video is gorgeous and really helped bring the science to life. I love that there’s local folklore about the good fishin’ and that science backs it up.

@The_Observer_god 26 дней назад

"Time only exist if you think about it"

@y4junzhan56 26 дней назад

"Be doing something isn't the same as being productive"

@y4junzhan56 26 дней назад

"rewards depend on opinions"

@harrymills2770 21 день назад

Creatures with any mass whatsoever are forced to see time as a linear progression. There's a past, present and future, with no crossover between the three, because we are constrained by the speed of light and must remain inside our light cone on the time line. You can't defeat the speed of light under Einstein's relativity.

@paigewhitfield3624 26 дней назад

Wait, so what gas was before oxygen?

@BeninArmyLeader 26 дней назад

Nitrogen, CO2 etc

@paigewhitfield3624 26 дней назад

@@BeninArmyLeader ah thank you 😊

@lenarianmelon4634 26 дней назад

@@paigewhitfield3624 Nitrogen still takes up most of the air but the amount CO2 had been greatly reduced because of all the photosynthesis..

@KhogenNaorem 25 дней назад

Methane , Carbon monoxide , hydrogen sulphide, carbon monoxide etc

@theYoutubeHandle 24 дня назад

fart

@SuccessMindset2180 26 дней назад

Very fascinating food chain starting from the depth

@noahwail2444 21 день назад

Great video, thanks for that. And it is kind of mindblowing, that all accesable iron on this planet, is a result of the great oxidasion event. Iron used to be suspended in seawater, but when oxygen apeared, it turned to rust, and sank to the bottom, where it became part of the rockbuilding proces. So now we can dig it up, and use it to our hearts content.

@HoopsAficionado 26 дней назад

Morpheus: What if I told you that at the bottom of an alpine lake, an oxygen-free eco-system exists? Neo: 🤯

@CarsonCadre 21 день назад

I remember looking at some stuff about this lake a bit ago so nice to see this video and how cool these body’s of water are

@Moon-li9ki 26 дней назад

I too, am obsessed with this lake

@camilacarmona8576 22 дня назад

this only raises the question of what’s the chemical formula for that water with no oxygen? is it still H2O? just H2?

@CM-lk6du 21 день назад

Brilliantly explained and illustrated.

@bazpearce9993 26 дней назад

Life is amazing, in all it's forms.

@paranoidz6 16 дней назад

Top notch animation quality with great explanation

@martynridley3671 25 дней назад

Interesting and informative video. Thanks!

@travelchoice89 22 дня назад

🔍🏞 Join the obsession! Scientists unravel the mysteries of this captivating lake with Nicola Storelli and Daniele Zanzi! 🌊🔬 Embark on a journey of discovery and exploration as they delve into its secrets! 🌟🔎

@JordanBeagle 26 дней назад

1:45 Damn, imagine being a freediver not knowing about the sulfur layer until it's too late!

@MsKoffeinjunky 26 дней назад

Doesn't really matter if you breath water or some sulfuric solution. You know how diving and freedving work?

@Batten-jc6ws 23 дня назад

You’ve never been swimming, have you?

@nightingale3.0 24 дня назад

What a delicately preserved environment!! I wonder if humans ever will have such an area if something bad happens.

@Nitephall 23 дня назад

I love the animations in this video.

@nightops5898 26 дней назад

Congratulations Ted! Your gonna reach 20M subs 🎉🎉

@lucianoosorio5942 26 дней назад

“If you want to count fish, please take the reef tour.” Steve Irwin

@pallavisrivastava7010 17 дней назад

Thanks.. it was magical to watch

@anzaklaynimation 25 дней назад

Soo clear explanation. ❤

@user-eq2dx2jp6v 26 дней назад

Dear Addison ❤❤❤ we love you ❤❤❤❤ and all good dear friends ❤❤❤❤ thanks so much ❤❤❤❤

@cupur 26 дней назад

how fascinsating, meromictic lakes

@snowmiaow 23 дня назад

Excellent video. Would like to see a photo of the purple bacterial layer.

@pratikangadi5728 25 дней назад

One of best animation of ted

@maxhill9254 26 дней назад

very interesting, thx

@jackstone4291 26 дней назад

Great interesting animated video

@the2nd965 26 дней назад

This art style is amazing!!

@ianturpin9180 21 день назад

I have seen stromatolites at the bottom end of Shark Bay WA AU. Still producing oxygen millions of years later.

@MythicTales993 26 дней назад

It has always baffled me why we take it for granted that extraterrestrial life requires oxygen and water for survival.

@inesbauer1119 24 дня назад

As a scientist researching life in other plantes, at least in our lab we don't take that for granted. We actually make models using thermodynamics to see if different solvents and sources of energy permit the evolution of life!

@keithhopkin 23 дня назад

Fascinating

@harrymills2770 21 день назад

Those oceanic vents are probably the best clue for the beginnings of life on Earth. But it's very hard to study and extremely hard to replicate those Archean conditions, because the whole planet was sulfur-based, as was all life.

@crankyturtle9704 22 дня назад

Love the animation!

@tophergami 24 дня назад

Awesome video! I thought you might want to know that CO2 has linear geometry (the bond angle is 180 degrees, not the ~90 degrees depicted at 0:34)

@michaelrstudley 25 дней назад

Such a great video

@landismcgauhey7217 19 дней назад

How can water-- by definition, a combination or hydrogen and oxygen-- be devoid of oxygen? If indeed at the bottom of a lake, there's a liquid devoid of oxygen, this liquid is something other than water.

@reenadactyl 26 дней назад

so cool!!

@edwardgilmour9013 22 дня назад

The lakes in the Vestfold hills (Antarctica) have a similar ecology.

@projectcontractors 15 дней назад

"All life comes from a single moment of creation. Some 3.8 billion years ago in some bubbling mud pot or deep ocean thermal vent. Some little bag of chemicals twitched and became animate and than miraculously reproduced itself. Everything that lives now on earth, or ever has lived, descends from that moment. We are all built from a single original blueprint. I don't believe there is a more important or remarkable fact in the natural world, indeed in any world, then that one." ~Bill Bryson

@ameliag.389 26 дней назад

Wow

@natheriver8910 25 дней назад

Very interesting 👏 👏 ❤❤

@I-amAnonymous 26 дней назад

So cool !

@gustavocarvalholoboleite3526 26 дней назад

Hey Ted -ed sugestion to next history video: Los Angeles ritos of 1992.

@behavior852 22 дня назад

Question: how did the fish get there. Like caldrons here in America, where fish seem to thrive, even though, there is no water system feeding it.

@lothair10 26 дней назад

This reminds me of the Lost River biome in Subnautica!

@tashashouse 5 дней назад

Cool. Thanks.

@Ivankasilva 26 дней назад

Woahhh...

@DavidDel88 22 дня назад

I wonder who the animator was? Great work

@francissanchez5640 13 дней назад

so cool!!!!

@ayaanamin3339 26 дней назад

wow

@mikepictor 26 дней назад

Just like Pink lake in Quebec Canada

@socialschooler 12 дней назад

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@justrandomthings709 24 дня назад

What if in other worlds, the great oxidation period did not happen and these anaerobic organism flourished. It's fascinating to know living organisms not needing oxygen.

@Rev_Oir 23 дня назад

Lake Baikal in Russia is huge, deep, and old. I wonder if it's meromictic, a term I've never heard before.

@angelnicolev.iniego4253 24 дня назад

this is so coool!

@MegaRhyz 25 дней назад

its always interesting but this is especially so and i have no idea why.

@pramodsingh7569 26 дней назад

Love from India 🇮🇳 ♥️

@GaryAa56 23 дня назад

I just learned something I was even aware of.

@trackeralias1124 26 дней назад

3:53, shouldn't that be carbon dioxide as opposed to oxygen? always love these vids, informative, interesting, and somethign about the way they're set / spoke is just relaxing!

@fasbazawllfflen5427 26 дней назад

Well, no. Plants and Algae (an artificial group) rely on oxygen to realize the oxidative phosphorylation, just as in us oxygen is the final-acceptor of electrons of the electron transport chain, responsible for generating the major part of the ATP molecules used as energy source in our organisms. But plants perform phytosynthesis as well, fixing carbon dioxide to produce complex molecules and oxygen.