How Evolution Works (And How We Figured It Out)

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As a scientific concept, evolution was revolutionary when it was first introduced. With the help of all three of our hosts and the Smithsonian National Museum of Natural History’s new Deep Time Hall, we’ll try to explain how evolution actually works and how we came to understand it.
This episode was written by Darcy Shapiro.
Produced in collaboration with PBS Digital Studios.
Super special thanks to the following Patreon patrons for helping make Eons possible:
Katie Fichtner, Anthony Callaghan, Zachary Spencer, Stefan Weber, Ilya Murashov, Charles Kahle, Robert Amling, Po Foon Kwong, Larry Wilson, Merri Snaidman, Renzo Caimi Ordenes, John Vanek, Neil H. Gray, Esmeralda Rupp-Spangle, Gregory Donovan, الخليفي سلطان, Gabriel Cortez, Marcus Lejon, Robert Arévalo, Robert Hill, Todd Dittman, Betsy Radley, PS, Philip Slingerland, Jose Garcia, Eric Vonk, Tony Wamsley, Henrik Peteri, Jonathan Wright, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Jeff Graham, Maria Humphrey, Nathan Paskett, Connor Jensen, Daisuke Goto, Hubert Rady, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao, Tsee Lee, Sarah Fritts, Alex Yan
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References:
ucmp.berkeley.edu/history/cuv...
evolution.berkeley.edu/evolib...
evolution.berkeley.edu/evolib...
evolution.berkeley.edu/evolib...
ucmp.berkeley.edu/history/lam...
evolution.berkeley.edu/evolib...
evolution.berkeley.edu/evolib...
www.amnh.org/exhibitions/darw...
people.wku.edu/charles.smith/i...
wallacefund.info/content/biogr...
wallacefund.info/content/1858-...
evolution.berkeley.edu/evolib...
evolution.berkeley.edu/evolib...
evolution.berkeley.edu/evolib...
evolution.berkeley.edu/evolib...
www.nature.com/scitable/topic...
evolution.berkeley.edu/evolib...
evolution.berkeley.edu/evolib...
evolution.berkeley.edu/evolib...
evolution.berkeley.edu/evolib...
www.pbs.org/wgbh/evolution/li...
www.nature.com/scitable/knowl...
phys.org/news/2018-08-truth-d...
evolution.berkeley.edu/evolib...
www.wired.com/2010/09/florida...
Bowler, P. (2001). History of Evolutionary Ideas: The Modern Synthesis. ELS: Encyclopedia of the life sciences, 1-5.
Papavero, N., & Santos, C. F. M. D. (2014). Darwinian evolutionism? Contributions of Alfred Russel Wallace to the theory of evolution. Revista Brasileira de História, 34(67), 159-180.
www.biodiversitylibrary.org/p...

[@daltongrowley5280]

I'm sorry but, Hall of Extinct Monsters is an amazing name.

[@Ploskkky]

It is, but not appropriate for a museum of natural history.

[@TonboIV]

@@Ploskkky But appropriate for a museum of natural awesome.

[@Lessinath]

@@TonboIV I think this kind of name is *wonderful* because it gets people interested. And that's exactly what science needs more of - it needs even more people to just take a look and discover the wonders that lurk inside, and all the amazing things we've found, figured out, and are still finding.

[@SuviTuuliAllan]

how about Hall of Justice?

[@Markle2k]

@@Ploskkky The front 5% of museums are supposed to make people want to work in or support the work of the back 95% of the museum.

[@Danquebec01]

1:14 I’m so happy Wallace is getting recognized together with Darwin for the theory of evolution.

[@XXcaesar5000]

Me to every racist should get there proper recognition

[@renmen7132]

XXcaesar5000 wasn’t everyone pretty racist back then

[@yoursexualizedgrandparents6929]

@@XXcaesar5000 I mean that applies to most people back then.

[@Levi_Skardsen]

@@XXcaesar5000 How does his racism affect the facts that he brought about evolution?

[@lenn939]

Larxara Asmr Darwin was not a racist.

[@HoundofOdin]

Evolutionary biology is beautiful. The fact that I'm distantly related to my dog, the grilled mushrooms I just ate, and the tree in my front yard is amazing.

[@moosifer3458]

Fun fact your more closely related to the mushroom then the tree.

[@renmen7132]

Dr.Bright r/iamverysmart

[@pietaricollander672]

@@renmen7132 The 9th subreddit rule of r/iamverysmart says "enjoying intellectual pursuits does not make someone "verysmart"". So no, this isn't r/iamverysmart material

[@ellieblunden1463]

@@renmen7132 r/ thisisntfuckingreddit

[@twistedegomaniac]

All is one and one is all,

[@TheUnknownFoxGuy]

The jumping back and fort between the different hosts was genius! I love it! Do this more please!!

[@TheHolyFox123]

Not feeling it takes me out of it everytime it switches. I can lose myself in listening when its the same person

[@UpcycleElectronics]

It requires a lot more editing and processing on the back end.

[@ajkorras]

Lol they did this at crashcourse

[@itsstar4171]

That's what I was thinking too

[@dudeinoakland]

No thanks. Too unfocused and leaving cohesion.

[@sankshaymacha5358]

Could you please do a video on australia's megafauna like the megalania and marsupial lion.

[@allenfilmore5725]

Sankshay Macha wasn’t marsupial lion in South America? Or am I thinking of a different marsupial carnivore?

[@lapwingfilms]

IKR it’s been suggested for over a month

[@CMichaelEH]

yes!

[@UnBknT]

I think Trey the explainer did a video on this topic

[@sordidzucchini1303]

0 0 the evolution of those would be cool too

[@woodsplitter3274]

I always wish that people who deny evolution and evolutionary theory would appreciate how many enormous fields of study they dismiss.

[@semaj_5022]

The entire life's work of thousands of people dismissed outright for some manner of a somehow preferred conspiracy that all these scientists are lying to us for some reason or another when people just don't really work like that. One of the most successful and thoroughly tested theories in all of science, and such a beautiful natural mechanism. I don't understand even wanting to discount it.

[@bullymaguire2061]

@Rosalind Stevenson what proof do you want? Why, just because you can't see evolution, does it mean it's false? Then you must be brainless, because you can't see your brain.

[@Alicegab300]

@@semaj_5022 A lot of people are not willing to change what they believe in because sadly it's hard to admit that they were wrong and that their parents were wrong all along too.

[@xandercorp6175]

@@bullymaguire2061 What are you talking about? Of course she can see evolution: falsifiability is a core principle of science. You just have to look, and then work to understand.

[@dejavu666wampas9]

From a fellow wood splitter, yours is the first comment in months of reading comments that correctly used ‘people WHO’, instead of the dreadful ‘people THAT’. Kudos, sir.

[@thersten]

I'm so proud to be a biologist and so humbled by those that came before me. 👍

[@JohnZ117]

Standing on the shoulders of giants, as it were.

[@Ratchet4647]

A lone Cockroach I thought it was Einstein...

[@petraraznolikost408]

Same here!

[@user-nx7xx7rf1h]

so you biologist? so tell me, do you have any experimental confirm what all protein genes can be produced by mutation for example of gene of collagen protein? Is it realy have experiments that proves this possibility?

[@isaacsim5193]

@Winterhold Guard hey, i know you

[@wanlee1113]

Marvel: infinity war will be the most ambitious crossover of all time... PBS Eons:

[@piaaisdora]

SDJSDDJK BEST COMMENT

[@TheDomlc]

Lmao! You win the comment section

[@mxnjones]

This was awesome! I don’t think I ever realized that Mendel was a contemporary of Darwin and Wallace.

[@itsstar4171]

Me neither

[@rondoclark45]

I'm not 100% sure of the truth of it but I've read that a letter from Mendel, in German, was discovered among Darwin's belongings, apparently unread.

[@scaper8]

@@rondoclark45 Oh wow. I don't think that I'd ever heard that, but if it's true it would have been game changing.

[@somekindofdude1130]

They aren’t contemporary, 200 years ago isn’t contemporary 😢

[@vincivedivicilextalionas4036]

Nasty jones ayyyy

[@DukeExemplo]

I had a 4-hour layover at Reagan a couple months ago. I planned ahead, rushed off my first plane, grabbed a train to the national mall, and spent about 2.5 hours in this museum! Made it back just in time for my next flight. One of the best decisions I've made...so much better than sitting around drinking overpriced beer in the airport.

[@itsstar4171]

I'm really glad that you guys don't let the negative weirdos who comment stop you from bringing scientific facts to the general population. This was a really well organized video with great fundamental knowledge on evolution. I really enjoyed how you guys used all three hosts- maybe that could be done more often! It helped keep my attention. Keep up the great work! 👑

[@easylivingsherpa]

LMAO @ scientific facts. Give us a single example of a benefit coming from your religion of evolution. Guess what you dont have one and if all you're gonna do is copy and paste from a Google search it demonstrates that you dont know what youre talking about.

[@jankopandza1072]

theory is not a fact .. but then again i have believe you are from the USA so you judge by feelings not by facts

[@-brutal-.]

A scientific theory is different from the commonly used vernacular “theory”. It’s an idea that has withstood scrutiny and been experimentally evaluated. As a matter of fact, the idea that matter is made up of indivisible fundamental units, atoms is also a theory. Now I have no idea where you come from but one thing am sure of, the number of times you’ve been in a science class is close to negligible

[@easylivingsherpa]

@@jankopandza1072 Yes and we put the first man on the moon and everyone comes here for surgery.

[@chockey4288]

your stupid is showing @@jankopandza1072

[@LPanne_Stitches]

My evolution professor in college loved Haldane, and what I got from that class is that my favorite Haldane quote is, "Now my own suspicion is that the Universe is not only queerer than we suppose but queerer than we can suppose"

[@WreckNRepeat]

Straight up writing that down right now, cause that's gold.

[@rayblogueiro]

I just freaking love this channel, goddam

[@Jesse__H]

right? I'm subbed to like 200 channels, and I think this one is probably the best.

[@jordonharris9098]

Yeah. Best stuff on youtube right now

[@capitaldeecolon4819]

I love you too :c Let's get married

[@Jah_Rastafari_ORIG]

Definitely need to trim the cat's nails this week...

[@BT3701]

@@Jah_Rastafari_ORIG If evolution were true, cats would be trimming their own nails by now

[@coleeolee]

At this point, I feel like Hank Green has his fingers in every science communication pie imaginable. Honestly, I feel like I’m waiting for him to start going door to door offering science to people. Dude is awesome

[@Wkumar07]

As one who was raised as a creationist I came to understand evolutionary theory later than most. I now see the beauty in evolution and how it explains the beautiful world around us. I still believe in God, but I no longer find a conflict between faith and science.

[@droopsmoop]

Believe what you believe. I'm glad you have found something positive in the science instead of harboring hate for it. Every little part counts.

[@howdoyouknow1218]

And it is much much more beautiful than “poof”. Creationists miss out on that

[@TheLamboman640]

W Kumar there is very much a conflict. The whole point of neo-darwinian evolution is to provide an alternative solution to Creation. While we can observe adaptation and mutation, there has never, ever, been any evidence of macro evolution. There has never been any missing links found to suggest organisms changed into other organisms. It is all imagination.

[@Dr.vonKrankenhausen]

@@TheLamboman640 🤣🤣🤣🤣🤣 take it easy Ken Ham, you're going to kill the only brain cell you have

[@Dr.vonKrankenhausen]

@@TheLamboman640 neo-darwinian evolution 🤣🤣🤣🤣🤣 is that the same as neo-newtoninan gravity? 🤣🤣🤣🤣🤣

[@FuneFox]

"I don't believe in macroevolution, but I believe in microevolution" "I don't believe in meters, but I believe in centimetres"

[@degew9367]

And?

[@adamgilbert2238]

Incorrect analogy. Macroevolution is in essence the observation of many so called 'microevolutions'. Referring to mutations and the resultant phenotypic change as micro and macro doesn't really help anyone with understanding of evolution though, since I'm not aware that there is any quantification on the size and effect of a mutation.

[@hosoiarchives4858]

@@adamgilbert2238name an example

[@Roihclem871]

Entirely different things.

[@FuneFox]

@@Roihclem871 explain?

[@dhindaravrel8712]

Don't forget Humboldt's influence on Darwin's thinking - it was Humboldt's development of the science of ecology that helped Darwin understand how different lifeforms influenced one another.

[@pacificswell]

Dhindara Vrel And Herbert Spencer’s contribution to Darwin’s Origin of Species.

[@Cheeseatingjunglista]

Ah that Humboldt...always current....boom boom

[@alopiaspelagicus1628]

Or Patrick Matthew. And George Cuvier.

[@7shinta7]

@@vids595 May I assume you attended the Wilhelm-von-Humboldt university? I think @Dhindara Vrel is referring to Alexander von Humboldt. Though they were brothers and both important scholars, we have to be careful not to mix them up. ^^"

[@MrGreensweightHist]

You can also trace it back through Islamic writings of Al-Jahiz in the 9th cemetery CE, and into the Greek and Roman philosophers. Darwin was the culmination of centuries of evolutionary thought that finally pushed it into mainstream acknowledgement.

[@VINOS234]

I always thought evolving was this cool shiny transformation with an epic soundtrack in the background

[@unexpected2475]

Spore?

[@andrewgan557]

nope. that's metamorphosis

[@lenn939]

Not Xavier Lau-Cavanagh Bruh.

[@bri1085]

@@andrewgan557 Pokémon

[@alcherion5268]

Press b to stop it

[@hareecionelson5875]

The predictions of Darwin, Wallace and Mendel on Heredity remind me of this quote: “Think of how many religions attempt to validate themselves with prophecy. Think of how many people rely on these prophecies, however vague, however unfulfilled, to support or prop up their beliefs. Yet has there ever been a religion with the prophetic accuracy and reliability of science? ... No other human institution comes close.” Carl Sagan

[@picturepainter]

That quote by Carl Sagan is from "The Demon-Haunted World", one of my favourite books. What Sagan was essentially saying is that science is much more reliable, more dependable, and above all, more accurate with its results than religion or astrology. As Sagan said elsewhere in the book, "We can pray over the cholera victim, or we can give her 500mg of tetracycline every 12 hours." Later in the book Sagan refers to an experiment that demonstrated why prayer doesn't work.

[@tombradford7035]

Science is just another form of religion, and its history is littered with reversals of theories and abandonment of theories - just think of Newton being replaced by Einstein. The Universe started with a Big Bang? Lol - what's the difference between that and a mysterious force saying "Let there be light!"

[@hareecionelson5875]

@@tombradford7035 1. Newton wasn't replace by Einstein, if you put low masses (i.e. smaller than a star) into Einstein's equations, they shrink down to Newton's equations, EInstein's equations are slightly more accurate, but even NASA uses Newton's equations for calculating trajectories, so they still work very well. 2. Science is about testing ideas - Newton's experimental evidence is still the same - his assumptions that space is empty and static with uniform time were false, he didn't test these assumptions. 3. when new evidence is discovered, science takes it into account, unlike religion which is dogma.

[@alexhegerfeld8599]

This is a simple misconception that has sadly been adopted in Western culture. Science is the study of matter and the laws that govern it. Matter is a major part of this existence, but so are other major factors of this existence- for example- your mind (beliefs, thoughts, ect) exist, but are not made up of matter. U cannot weigh your thoughts on a literal scale. What could be called “religion” is just the legitimate search for the source of all the non-material type of things as well as the source for the material. After all- if matter at one point did not exist, something not made of matter had to have caused to come into existence.

[@hareecionelson5875]

@@alexhegerfeld8599 EEGs and MRIs can be used to measure brain activity in different regions: thoughts are simply the firing of neurons. The fewer the neuron connections, the simpler the the brain.

[@varunnikam]

I am glad that I decided to choose zoology. Biology and evolution are amazing. I am going for the molecular biology major.

[@maxxam3590]

Congrats. I'm too old to study and become a scientist, but I'm a huge cheer leader for science. Been studying biology since I was 9.

[@varunnikam]

@@maxxam3590 thanks man i appreciate

[@toAdmiller]

I received my bachelor's, Masters and Doctorate in Biology (last one, 30 years ago). The discoveries and advancements in ALL areas of the hard sciences through those decades still leaves me slack-jawed. The more you learn, the more you realize how little you know and always will...keeps one humble, but still voracious to always be learning more...HAIL SCIENCE...!

[@terminator572]

"The Hall of Extinct Monsters" sounds pretty damn cool tho.

[@SuperGman117]

Which is probably why they named it that.

[@terminator572]

@@SuperGman117 legit sounds like you are entering some sort of trophy hall, it's awesome.

[@dark_messiah8183]

better than the new name, which is named after a criminal and one of the worst people on the planet: a Koch brother

[@terminator572]

@@dark_messiah8183 what's wrong with Koch? The MP5 was his idea.

[@dark_messiah8183]

Dorvuzak Uzn the Koch brothers are oil barons who use their massive amounts of wealth to lobby for climate change denying politicians so that they can stop policy from forming that would address climate change and divest our energy from oil and other fossil fuels

[@captain_awesome2134]

IMO Evolution is the most interesting part of biology

[@jan_kisan]

so much respect here, for science and the people driving it forward - it really warms my heart) thank you! this Darwin quote in a museum, that's so beautiful)

[@silvermainecoons3269]

emanuel e What’s your point??

[@bababistril]

@@user-tu1co9xl1k again he was a physicist! NOT a biologist, at his time no one had actual proof to evolution. But they do now(also from a century before) but he's not here to see it. Trust me if he'd have seen the proof even he wo change his mind.

[@teeranking1423]

@@bababistril were they talking about Isaac Newton?

[@bababistril]

@@teeranking1423 yes

[@michaelreichwein3970]

@@bababistril proof?

[@joshuastrader]

This video production was on a different level. The information was dense but not overwhelming, and using multiple presenters kept it engaging. Well done!

[@Pleaseleavemealoneooga]

I’m addicted to these videos...

[@odinsutherland4237]

I just have to ask for an episode on monotreme evolution, and to thank you guys for revitalizing my love of Paleontology, you have given me something to work towards for my future, and I can thank you enough

[@Leehamism]

It's CRIMINAL that children are still taught to deny the beautiful shared history we have with all life on this amazing planet. On a less negative note, a fantastic way to spend 12 minutes of my day. THANKS!

[@StopChangingUsernamesYouTube]

In twelve minutes, you all eloquently covered nearly a third of what my Biology I curriculum was in high school. Regardless of the negative implications, it also means you're doing a world of good. Thank you. And just for completeness' sake, I'd like to add that you've all more than covered everything I learned about various sciences through my time there.

[@hydris3664]

I’ve always wanted to know this! Thanks PBS Eons!!!

[@loog8621]

A sponsorship by smithsonian (idk if I spelled it right) was unexpected

[@Just_som_Ottur]

Looks right to me

[@Phyto.]

Why?

[@gregoryfenn1462]

What’s unexpected...? Or is this some weird sense of sarcasm that I’m missing?

[@francissreckofabian01]

I'm glad there is a move to include Wallace in the Theory Of Evolution. He deserves to be remembered. Rosalind Franklin deserves to be remembered. Without her work would Crick & Watson have figured out the structure of DNA? (I dunno, I'm not a biologist but I'm pretty sure her efforts should be noted). And someone named Maurice Wilkins who I didn't know about probably deserves some recognition too.

[@ThePrinceofParthia]

I'm not sure Franklin deserves as much credit as she's generally given nowadays. She definitely deserved her name on the Nobel Prize rather than Wilkins, but the key breaktrhrough was made by Watson and Crick. There is no evidence (that I have seen during the course of my biochemistry degree) that Franklin, from her background and previous work, would have made the vital links from her images to discovering the structure of DNA.

[@tisema17]

Francis Srečko Fabian didn’t he come up with the idea in a fever dream or something? And Darwin had to share credit because he waited too long to publish?

[@suelane3628]

@@ThePrinceofParthia Rosalin Franklin was well on her way to working out the structure of DNA. She was very careful researcher and wouldn't publish until she was absolutely sure. She was working under Maurice Wilkins who totally ignored her. It was Wilkins who showed Franklin's unrivalled X-ray crystalographic image to CRick & Watson as they accessed her lab whilst she was out. This was the break through that Crick & Watson needed.

[@nathanjora7627]

Franklin is definitely remembered, so saying "she should be remembered" is a bit... Superfluous. No offense, of course, if you aren't from a background in biology, it's expected you didn't know that (but generally speaking, someone that doesn't have a background in biology can't be expected to know about Crick or Watson either, so there is no really any unfairness here, only when the Nobel prize was given in the first time).

[@rondoclark45]

@@tisema17 Darwin spent 20 years developing and trying punch holes in his theory. He also knew all too well that the first theory of evolution that didn't include "Goddidit" would be met with resistance, and it was. You are correct that the idea came to Wallace in a fevered illness in 1858. However, it was due to all the years of work he had done that the idea came to him. He simply didn't have the time to develop it as Darwin did.

[@DutchBane]

This channel really is top notch. Very likeable presenters. The pacing, scripts and editing are pleasant. I wish i could double like.

[@borttorbbq2556]

I wish it was longer but agree

[@joaquinel]

I liked comments like yours, it's like a multiple like.

[@DenisK21]

Evolution: life's way of constantly insisting "it's not a bug, it's a feature".

[@christophermadeira9090]

Could you make more videos on prehistoric oceans?

[@willembester3912]

This is one of the few channels that always remains awesome. Thank you for hard and excellent work.

[@sdega315]

“Nothing in biology makes sense except in the light of evolution.” ― Theodosius Dobzhansky

[@DenysSene]

this video deserves subtitles in all languages!

[@Niinkai]

In less than 200 years, scientific study has completely revolutionized our understanding of the constantly changing nature... of spacetime

[@prahastha1618]

You lost mate? PBS SpaceTime is not here.

[@CaffeinatedArt]

One of these videos was in my recommendations. I'm so glad I chose to watch it because now I can't stop binge-watching this channel.

[@audreydoyle5268]

This whole video summed up an entire term worth of school. It literally took my year 10 science teacher 10 weeks to teach us this, and there was so much he left out, like the forethinkers of evolution. All he had to do was put this video on when the kids were getting rowdy (which happened almost every lesson) and they probably would've listened.

[@heath_00000]

Yes! I love the dense videos.

[@johnboswell2324]

I teach high school life sciences and I just want to say how much I (and my students) love these videos. Thank you so much for spreading excellent information in such a clear and concise manner! Keep up the good work!

[@marim0y]

This is a very well scripted episode. Can't wait to see the follow up at the Smithsonian. 💙

[@VladRaoni]

When I saw the notification of this video I ran home to watch! I'm a biology student and I love this channel very much!

[@moosifer3458]

Wow, Okay. Wasn't expecting to see a review of my whole first year of college biology. Great video!

[@mharder5262]

Great to see all 3 hosts in this video. And the perfect topic to have all 3 of you to speak about.

[@Tsuki04wolf]

Seeing the whole crew in one video literally gave me life! Might have to visit DC soon just to see this exhibit 😍

[@krzyktty101]

This is one of my favorite videos so far. I love how you all participated in it together.

[@gibranhenriquedesouza2843]

Please, a complete video about fossilization and fossil datation.

[@veggieboyultimate]

Wait, “When whales walked”?, that is one of your video’s titles! What a coincidence

[@Evolution1101]

Yes, it's SUCH a creative title for talking about whale evolution...

[@Mark-Wilson]

@@Evolution1101 yeah its so cool

[@JaxCarpenter-uz1pr]

@@yeuedaka4754everyone will. It’s called decomposition

[@Heypicaso1]

Eons isn't the best thing on KZbin, it's the best thing on the internet.

[@youknownothingjohnsnow7475]

Me, watching these vids non-stop even though i was supposed to be asleep at least 5 hours ago, knowing full well that i'll be dying at work in few hours, but unable to stop. natural selection at it's finest.

[@DarthWells]

Pulled out all the stops and made an AllStar Eons episode...at the Natural History Museum. Awesome. Thank You

[@SKy_the_Thunder]

And on the perfect topic for it too.

[@jevogroni4829]

It's great you have subtitles from the only two languages on earth, English and Vietnamese.

[@monox4127]

lmao

[@Ed-oe7fb]

Really Nice to see three of the great presentors of this channel explaining it so clearly and enthusiasticly.

[@timothyshoup5044]

I like how the video jumps from one host to another to emphasize how these ideas all came from different people.

[@hollyodii5969]

This episode is so extra! I love the multiple hosts/presentors! The information was interesting and concise. The visuals and graphics were great. Fantastic espisode again Eons!

[@psyclotronxx3083]

I've had many an argument with people when I told them that Darwin didn't come up with evolution in a vacuum. This video addresses this fact. Thank you!

[@psyclotronxx3083]

@@brontehauptmann4217 you're simply mistaken.

[@psyclotronxx3083]

@@brontehauptmann4217 🤦

[@topacio3696]

I love biology so much☺️💗 uni is killing me tho 😣

[@TheWindsVoice333]

This is the first video I’ve seen with all of the hosts and it makes it feel incredibly powerful.

[@Scum42]

I love that all of the main presenters are here for this episode -- it really makes the video feel big and important, which it is, talking about probably the single most important force to all life everywhere.

[@korstmahler]

Well that and the Smithsonian paid them to go. Who wouldn't take them up on that?

[@omer_net]

I wonder that you distinguished between "micro" and "macro" evolution. there is not really such distinction, since "both" are the same process span over longer time.

[@richardblazer8070]

The main difference is usually defined around the species, evolution within a species is deemed micro, and evolution between species is macro.

[@omer_net]

@@richardblazer8070 I know that, however, i mentioned that this is all part of Evolution. there isnt 2 process (micro and macro). This is all same process in different time scales.

[@richardblazer8070]

@@omer_net Yep, I know.

[@rajawalk]

Its just easier to explain and understand.

[@chocomilkfps1264]

@@rajawalk I actually think the terms tend to confuse way more than they help people to understand

[@marcussams-mckoy4290]

I really enjoy the energy you all bring when you're in the same videos

[@aiman7395]

This episode is even more so superb than previous episodes! Love Eons!!!

[@JAllenHammer]

Thank you so very much for making these videos! Always interesting and informative!

[@rondoclark45]

What a great video... Having all three of you passing the narration back and forth. Very informative and well done.

[@solosimone8394]

The authority of this collaboration makes this channel more and more accountable for the information it gives. Amazing

[@calebbalzer4518]

I loved the vocal variety with all of you speaking in this one. It adds a lot of interest

[@Lycancass89]

I have great respect for the people that challenged the (obviously ridiculous) notion of creationism. Especially back in the day, they must have caught a lot of flack.

[@aixelsydtcefrep8852]

To know all of this, just imagine how lucky we are

[@Frostfly]

Love the quality info. and the mixed hosts. Makes it very watchable.

[@LuinTathren]

I'm saving this video. Extremely informative! Thank you so much for all your hard work.

[@bennymalone]

Great video, thanks! Could you please do one on how the continents formed and shifted and which animals were around at the time in parallel. Thanks!

[@keksidy]

"What do you do for a living, Thomas?" "I breed flies for a minor trait that may or may not appear."

[@paulp4201]

This is by far the best episode you have ever made on this channel. It avoids the "Gee whiz isn't science amazing" style so prevalent in popular science journalism and instead makes reasoned arguments. Thanks for the great effort!

[@mermaidfinn]

we learned about this first concept of evolution in my 2nd grade where we were given tongs, tweezers, cups, and other varying kitchen tools and we had to pick up beans from different surfaces - this showed my 8 year old brain that different ecosystems required species to adapt different tools (beaks/evolutions) in order to survive. really thankful i had a cool teacher like that and i love these videos for reteaching me and in more depth.

[@b1elal]

Favourite KZbin channel period.

[@joshwi4193]

Phenomenal video everyone. You explained everything so eloquently and clearly that anyone could watch this and understand what you're saying. Sharing science with everyone is so important, and I'm thankful that you are all so passionate. I'll definitely be sharing this with family and friends who are.. less than convinced that evolution is real.

[@brandongibbons4395]

Absolutely amazing work, all of you. In any given video across a multitude of channels, evolution is references usually only in part. It was very nice to see a timeline of evolution's history. It was also really nice to see all of you in one video. I for one would like to see that more often. It was epic. Keep up the amazing work you guys!

[@james4thedoctor482]

It was fun having all 3 hosts in 1 episode!!!

[@mj2carlsbad]

The craziest part of all this is the recency and rapid development of these discoveries

[@recycledwaste8737]

Exponential growth is fun. The more we figure out, the better we are at figuring new things out!

[@downbythelakehouse9120]

"I don't understand evolution and I have to protect my kids from understanding it. WE WILL NOT GIVE IN TO THE THINKERS ! " - Futurama :D

[@AmericanViking14]

Sadly also real life in some places.

[@benjaminmadrigalperez9010]

@@AmericanViking14 sadly it's real in some of the comments treads. :(

[@dprob1985]

Damn...them people are so less than you!! Who cares...kids will have access to all their questions lol. People have the right to believe in whatever.

[@triassicgaming2424]

I saw this and knew I must comment

[@yukonboon6599]

When I was a kid my parents used to make me skip the intro of The Land Before Time because “evolution is lies” 😂

[@carlyblack42]

Awesome! Thanks for the great collaboration on this video.

[@Sandman92]

Best channel on youtube. Would be cool if more episodes had alternating presenters like this.

[@Olhar.Internacional]

Great video :)

[@Prayukth]

Thank you...I think we need to maintain a high level of interest in the subject of evolution...more fascinating finds await discovery...

[@gabbystack2199]

I love this channel. I just wanted to put this out there... I have watched every video and I love every bit of information you guys put out. The format is amazing. Thank you so much for your work!

[@jamesstace213]

Wallace is getting the recognition he deserves. This makes me happy. Thanks Eons.

[@Alextrim92]

Guys!!!!! As usual you never disappoint! This subject is at the base of all life on earth and they way you guys broke it down is amazing! Love how all of you did the video together.!! Keep up the amazing work and thank you for taking the time and efforts it giving us these awesome videos!

[@Alextrim92]

Evolution has so many factors working together and you guys explained them beautifully!

[@dingdong3508]

I was there at the Smithsonian like a week ago and was sad that I couldn’t go to the deep time hall.

[@ludwigiapilosa508]

It's been under reconstruction for the last few years.

[@ssiddarth]

This video made my day so much better, Thanks PBS EONS. Love you guys 😘🤗

[@vita123abc]

A topic so important it needs all three hosts to chip in. Brilliant!

[@mahmoudelsaid3552]

I really would like to translate that to Arabic .. as we need this in Arabic.

[@korstmahler]

Click the three dots beside the like/share/save section and then press 'add translations'

@@korstmahler Why I can't see "add translations"?

[@korstmahler]

@ I don't know, it should be in that three dots menu at the bottom right hand corner of the video space. Are you on mobile perhaps? I'm not an expert, sorry.

@@korstmahler Yes, I am on mobile. It can be the reason. Thanks.

[@Ali-mj2gm]

as being half Arab and an ecology student, YES we need it in Arabic to help improve understanding of a commonly misunderstood phenomena.

[@huntercollum869]

They always kind of gloss over the fact that Darwin and them didn't really understand the mechanism by which new traits come to being I'm glad they didn't skip over it in this one

[@Ethan-si6gy]

I like how all the talkers of the PBS Eons channel had their chance to explain the topic this episode

[@stints]

I really liked this video. Not only the topic is interesting but I really enjoyed each presenter getting time to speak.

[@stacymar684]

I just found this channel yesterday, and already I can't get enough. Great content, fascinating and brilliantly presented. Kudos to everyone involved in making these videos!

[@fruitbouquet5479]

Welcome to the club

[@TheDsasadsad]

As a biologist myself and someone who got interested evolution theory back in a school days, what a great video. Saved it to my playlist.

[@jamesw9930]

I know of a Museum in Petersburg Kentucky that needs to play this video on a constant loop for all visitors and guests every day.

[@rodolfomaiquez483]

12 mins. That's what it takes for my whole semester of Evolution & the Origin of Life Class! More of this kind of episode please!!! This is AmaZing!

[@graphite2786]

As always a wonderful educational and well put together video! This upload had many references to some of the most incredible scientific minds ever, would it be possible to do an occasional biography video on some of the unsung heroes of paleontology, evolution and biology? For example few laymen have heard of JBS Haldane and yet he was instrumental in modern evolutionary biology. He also wrote a bestselling childrens book ( which I read when I was 10!), came up with many familiar quotes and was a true unconventional eccentric! ( Seriously, some of the things he got up to....) Others could include Wallace, Mary Anning and Humboldt. I'm sure there are hundreds of other scientists out there that many viewers would enjoy hearing about and even inspire into a career.