We hope you enjoy the sixth and final episode (at least for now) of In Our Nature. We've had so much fun making this special documentary series, and we hope you enjoyed it too. We set out to make the best KZread nature documentary ever, and we're pretty proud of it. Let us know your favorite thing you learned from this series! And catch the full In Our Nature playlist here: kzread.info/head/PLsmqeqKj7M-r3lioCBH39wgdSk25qFdC3

@Saniru_Kodithuwakku

2 жыл бұрын

I am glad that wooly mammoths , wooly rhinocerous and saber tooth tiger naturally went extint if they survived to present hunters would definitely hunt mammoths to extinction for their massive ivory and wooly rhinos for their horns and saber tooth cats for their long canines .given below are how many wild elephants, rhinos and lions exist today in africa. LIONS - 20,000🦁 RHINOS - 27,000🦏 ELEPHANTS - 500,000🐘 I only mentioned about main animals there are ton of animals out there who are in the edge of extinction. It is a tradegy that we humans spend billions of dollars on space to find extraterstrial life and billon of dollars on military and weapons(obviously to destroy life) without trying to protect gift of life we have here on earth. by the way joe your videos are great. keep rocking. joe i suggest you to do a video on conservation of life on earth. STAY SAFE EVERYBODY. 😊😀

@rezadaneshi

2 жыл бұрын

Is the Oxygen content of our atmosphere dropping

@everythinghate666

2 жыл бұрын

love emily

@afrz4454

2 жыл бұрын

Loved the video! Don’t you consider the 300+ mammoths found on traps in what is today Santa Lucía Mexico a proof that humans were mass hunting mega fauna? They have been pulling out more and more mammoth fossils while they’ve been digging up for the new airport.

@amil402

2 жыл бұрын

I enjoyed this series ❤ Africa💕

Millions of years into the future archeologists would be able to find human fossils, not in tar pits, but in LA traffic.

@grmpEqweer

2 жыл бұрын

I'm wondering if I could create a coffin kit that would dramatically accelerate fossilization.

@warduxe

2 жыл бұрын

@@grmpEqweer genius

@gabrieldelatortilla1

2 жыл бұрын

we should use dead humans as fossil fuel like, take my organs then use me as fuel, I'd be honored

@kellydalstok8900

2 жыл бұрын

Like an everlasting traffic jam that becomes people’s home?

@diecastworld7962

2 жыл бұрын

And it will be Musk cult ai half human robot scientists

Wow that last interaction is so important 20:40 "I could discover a new species today!" "You probably already did and you just didn't know it"

I wish this series to get the deserved attention and traction which it should.. A lot of effort have gone into this and we can see it. Thank you for making this beautiful series.

@Aaronjpolk

2 жыл бұрын

He has 4 million subs

@princememphis7726

2 жыл бұрын

Millions of subs and backed by PBS. They are FINE bro

@0ppaiDragon

2 жыл бұрын

It's up to us the viewers/fans to find new audience for this content. Better have friends watching this than whatever the new "reality" show nonsense on tv

@caroline6218

2 жыл бұрын

Yes!

@xtins

2 жыл бұрын

People nowadays want to hear lies and watch sexual or violent content.

I can only imagine what that was like. I took my daughter to our local zoo a few weeks ago and they have a wide open African section with plains where you can see Elephants, Rhinos, and other animals. I’ve been around elephants before so I know how large they are, but they have one that was right under 18 feet tall from foot to top of the head. It made the others look like children. I have never seen one that size.

@cool5843

2 жыл бұрын

That’s taller than a giraffe!

@VincentGonzalezVeg

2 жыл бұрын

Mabie gigantism with intercompetition, or an example of gigantism, old genes expressed- something awesome 👍🏼

@adreabrooks11

Жыл бұрын

The tallest elephant recorded, Henry from Angola, was a little over 13 feet at the shoulder. (The famous Jumbo was also billed as 13 feet 1 inch - but PT Barnum was, shall we say, prone to exaggeration - and his skeleton puts estimates closer to 10' 7".) Recently, an elephant in Tanzania has been estimated as slightly larger than Henry, but his height has yet to be officially measured. These are shoulder heights; but, even so, no living elephant has a head-height of 18 feet - unless maybe with the head tilted way back and the height measured to the raised tusks or trunk. Nevertheless, you're right: a big cow elephant (African bush elephant) stands 8 or 8.5 feet tall. A big male nearly doubles that, and they're truly awe-inspiring to behold! EDIT: Correction; I thought the new big'un was in Kenya, rather than Tanzania. This has now been corrected in my comment.

"We actually have a time capsule! And it's in the *last* place you would expect!" "La Brea tarpits?" "LA BREA TARPITS!"

“Extinctions are caused by multiple coincidences” The entire Anthropocene : (Mr Blue Sky)

Insect:”I’m surviving maybe not.”

@nxxxxzn

2 жыл бұрын

insect: sex, food, other

@naturespecialist1489

2 жыл бұрын

@@nxxxxzn insects are a part of human survival. Without insects everything will go out of control and the Earth will be a dead world.

@KateeAngel

2 жыл бұрын

All insects won't die off anyway. Maybe some important species will, though

@naturespecialist1489

2 жыл бұрын

@@KateeAngel human beings are damaging The ecosystem and climate change has been affecting species like the famous Chilean stag beetles nicknamed the Darwin Stag beetles these beetles have strange body and due to this they weren’t as famous as there now the stag beetles have famous because one arcade game and anime titled: Mushiking The King Of The Beetles and thus the beetle pouching has begun however after I watched the anime Mushiking Super Battle Movie I decided that my my personal effort is to save the stag beetles , as well as any rhinoceros beetles and stag beetles from extinction and thus change the beetle industry from pouching to conservation of the forests they live I did managed to find out what the Heracles beetles favorite tree is so at least that’s one beetle down a ton to go!!!!!!!! And yes the Dynasties Tytus rhinoceros beetles is endangered due to Emerald ash borer I need to do some research if it’s just Ash is what Dynasties Titus only eat and without the beetles many the insects will have a difficult time decomposing logs.

@ValentinaMQuetzal

2 жыл бұрын

@@naturespecialist1489 :/l

This is what everyone should be watching. This is something that we really need understand

@nahor88

2 жыл бұрын

Everyone as in children? This was clearly made for little kids; they were acting like complete goofballs. It's cringey as hell. JUST PROVIDE THE INFORMATION.

@emonahmadi208

2 жыл бұрын

@@nahor88 its bit cringey but its very educational and informative about what is going on in this world! And they are nerds what you expect they are not stand up comedians you don't come here to hear jokes but they try to make it fun have some appreciation!!

@cameralabvietnam

2 жыл бұрын

@@nahor88 it’s cringey but at least it’s informative. Or you can go watch tiktok videos, which are just cringey

@21LAZgoo

Жыл бұрын

​its fine to be cringey as long as you are right, but the things they said like about coevolution being why africa and south asia still have a lot of their megafauna and how modern climate change compares to the changes at the end of the ice age are straight up lies.

Very entertaining and interesting, I felt like a kid watching PBS again. Many documentaries nowadays just don’t feel as fun to watch and learn anymore.

@21LAZgoo

Жыл бұрын

true. although now that I look at it, some of their info is not correct, for example them saying that modern climate change is faster than the climate changes during the ice age

Calling 50,000 years the deep past is like calling knee high water the deep ocean.

@lorisperfetto6021

2 жыл бұрын

Yeah but it's all about what It relates to. 50,000 years feel like forever to a lifespan

@Makabert.Abylon

2 жыл бұрын

@@lorisperfetto6021 a point, but you still usualy dont say deep time about something as puny as 50.000 years. Then i could call 400 years deep time as its a long time for me🤷🏻‍♂️

@lorisperfetto6021

2 жыл бұрын

@@Makabert.Abylon yeah, it is true; but even by human standards 400 years isn't a lot. I do agree that 50,000 isn't deep time, but it is still before human civilization so...

@alexv3357

2 жыл бұрын

50,000 years is more of a baseline. Further back then that megafauna are essentially ubiquitous, except for the brief periods after the End Permian and K-Pg extinctions, and on land in the period before the Permian

@8948380

2 жыл бұрын

it's still pre-history from the perspective of scholars

Early humans probably targeted predators as well, whether intentionally killing them or fatally wounding them when defending a kill, or by targeting nuisance individuals.

@chetisanhart3457

2 жыл бұрын

Predators are easy to locate. They come right to the hunter.

@21LAZgoo

2 жыл бұрын

that probably happened, but because of their being no evidence that humans ever did anything with the predators, it probably happened so rarely that it didnt even do anything to affect the population of the predators

It'd be fascinating to experience life back then. The mysteries of our world never disappoint

@monad_tcp

Жыл бұрын

you would probably die

Im kinda sad they dont teach this stuff in school all these creatures look amazing atleast maybe a face up view would've been cool its grwat we got this series thos

@maythesciencebewithyou

2 жыл бұрын

I don't know where you go to school, but this stuff should be in your biology curriculum.

@obiomajronyekwere4469

2 жыл бұрын

@@maythesciencebewithyou thank you

@maythesciencebewithyou

2 жыл бұрын

@@obiomajronyekwere4469 I mean it should literally be in there. I had this stuff in my biology classes. Are you already finished with school? Do you pay attention in biology class?

@randompheidoleminor3011

2 жыл бұрын

At mine it was touched upon in history class instead of science. It was _in_ the textbook but the teachers didn't bother teaching it because they weren't in the exams.

@obiomajronyekwere4469

2 жыл бұрын

@@maythesciencebewithyou my biologys cool but i am interested in paleontology they just never show it in class like ever

I'll definitely an easy dinner if i ever go back in time then :>

@silviuflorin744

2 жыл бұрын

Missed "would" and "be"

@Fummy007

2 жыл бұрын

These things went extinct because they are surprisingly easy dinner for humans. Their size doesn't make them indestructible to a pack of intelligent humans but does give a lot more food.

@YusufGinnah

2 жыл бұрын

Maybe a TV Dinner...

@Dan_Kanerva

2 жыл бұрын

@@Fummy007 imagine all the wasted meat after hunting a mammut , because back them there was no fridges or salt...

been rewatching the series just patiently waiting for this new ep

@rg_2952

2 жыл бұрын

Verified moment.

@Laingrave

2 жыл бұрын

How tf u verified with only 15k????

@thesymmetry6854

2 жыл бұрын

Wth !!! Verified with just over 15K???

So what you're saying is that my current strategy of crying myself to sleep every night over the terrible catastrophe that is climate change's impact on the world, and the lack of significant change being made to try and prevent it *isn't* a valid response to the problem? Well then, where do I sign up?

@redsky4118

2 жыл бұрын

I agree that they aren't exactly precise with what concrete actions you can pose, but I think that a good beginning would be self-aware about what is a desire and what is an actual need for you. Also, we're all gonna die

@NorthCitySider

2 жыл бұрын

Being very emotional about this subject is only going to do more harm than good. The last thing we need is for people to think this is all just hysteria and mass delusion, which unfortunately a large chunk of them already do.

@EfHaichDee

2 жыл бұрын

@@NorthCitySider Yes I can see how my clearly comical comment above is the lynch-pin that will convince people that climate change isn't real. Did you stop to think *at all* before you made this post?

@Jacob-xs5yu

2 жыл бұрын

Ur pathetic

@EfHaichDee

2 жыл бұрын

@@Jacob-xs5yu Thanks

yup this is way better than my confusing modules

Hay guys, thanks for letting me get smarter for free. 🥰 I'm to poor for regular school but u guys are my brain food XF

@Idk-ks4ch

2 жыл бұрын

तू गरीब कैसे?

@RainbowFlowerCrow

2 жыл бұрын

@@Idk-ks4ch not everyone can afford post secondary education, dude.

@diecastworld7962

2 жыл бұрын

Is it a joke or really bro

@Idk-ks4ch

2 жыл бұрын

@@RainbowFlowerCrow तुझे हिन्दी आती है या अनुवाद करके प्रतिक्रिया दे रहे हो?

@Idk-ks4ch

2 жыл бұрын

I don't think that you are a poor guy. You are using KZread from atleast 8 years. Your DP picture quality is also pretty decent. That means it a midrange smartphone.

I'm literally crying 😭. Thank you for this amazing series, this makes me curious about that we human as a specie affected these vast and complex systems in a short span of time and what will be the future of these eco systems 100s of years from now. It's so sad that even with massive efforts most of these species gonna extinct in near future but we can't lose hope and respects to these scientists for their great contributions towards savings these vast ecosystems. Love you guys, already waiting for the next episode.

Megafaunas : these jaws can crush literal skulls in one bite! Mankind : yeah hold my spear

I LOLed at the giant ground sloth holding a Starbucks cup. xD xD xD

@peabrain6872

2 жыл бұрын

facebook moment

@christopherbaby3842

2 жыл бұрын

Ikr. But Grounds Sloths would definitely be into third wave coffee.

The moral of the story is: if you walk into a tar pit.... you're boned.

@RainbowFlowerCrow

2 жыл бұрын

dAAAAaaadddd!....🙄🤣🤣🤣🤣

@daphenomenalz4100

2 жыл бұрын

👀

@ekosubandie2094

2 жыл бұрын

That's kinda... Hot

We kinda know with mammoths. Scientists modeled their deaths due to the end of the ice age, something that was possible as they had lived through the two previous ice ages. They also modeled the number of mammoth deaths from human hunting, based on archeological evidence. Either alone wouldn't have caused their extinction, but when you combine both - no more mammoths.

@21LAZgoo

2 жыл бұрын

there were always population declines/collapses when the warm intervals came, and 14800 years ago there was a massive warming spike which caused huge megafaunal population decreases, then the younger dryas came and decimated that already low population, and then at 11600 theres another huge warming spike which fks the megafauna even more, humans were already in north america at least 24000 years ago possibly even older

0:16 That's a Mammoth, not a Mastodon. There's a significant difference.

I would love to see your content with Turkish subtitles! Your topics are very interesting and I would like to make it possible for my students to watch it. I hope you guys see this comment and help me and my students stay curious. 🙌🙌

I used to work there (I cleaned things in the fossil lab)... one thing we were constantly trying to get people to understand it that it was NOT like quicksand.... it was more like a glue trap, fairly shallow with animals stuck on top. The seeps would continue to seep and cover over it, but the semi-soft ground and bubbling would churn things (over long periods of time) so you actually don't get stratification. The pits are only pits today because they have been excavated and then the seeps re-filled the pits left by excavation. NOW, those are like quicksand, but they would not have been like that prior to excavation. We always told guests it was likely a combination of factors as far as the megafauna.

What an awesome series, this is the best thing happened to KZread. Thank you Emily, Joe and Trace for the awesome content.

I've had a similar discussion before, my friend was saying it was all because of human hunting, and I said then why is Africa the only place that still has large animals, yet humans have been there longer than anywhere else? Not saying we weren't a huge factor, but we can't be the only factor

@21LAZgoo

Жыл бұрын

they said it was because of coevolution with early hominds, but europe also had those early hominids at the same time yet most of the megafauna in europe still died out

IN OUR NATURE is definitely one of the best KZread series I know. Thank you!

this channel has always been great but it's become absolutely awesome in the last year or two. mad props to you guys for kickin butt and takin' mega fauna names!

What a wonderful series! Thanks as always for making and producing these insightful videos.

I thought this series was really excellent, format, content and hosts. You guys are the best!

I think the Theory put forth by Sergey Zimov was for the most part correct. It was essentially a positive feed backloop. Basically with Reduced Megafauna Populaions came the changing of whatever environment they effected. Thus leading to reduced access to food, lowering the megafauna's ability to survive thus pushing it into the loop until complete extinction. This paints a pretty clear picture of large animals or animals in general having a positive effect on their surroundings.

@21LAZgoo

Жыл бұрын

but mammoths couldnt do anything about nearly their entire habitat being lost because of the interglacial that came 130,000 years ago, humans had large migrations into europe and the asia at that time because of the warming but they arent blamed for that collapse

I've let a lot of these videos play in the background while I go about my business, not really paying too much attention to the details, but this one got me to sit down and look at the screen. Really glad I did because that was all super cool!

This is one of my favorite series on KZread. Great work, guys!

Yeah thanks always wanted this topic... In our nature just keeps getting better

I recognised Emily’s voice straight away! So excited to hear from her again, I’ve missed brainscoop so much

@zolacnomiko

2 жыл бұрын

She has her own KZread channel now! Only a few videos so far, but some excellent cicada content. And of course this entire In Our Nature miniseries. Hopefully PBS keeps picking her up for cool projects!

If I had kids this would be one of the only shows on cable tv/KZread I'd let them watch. Love it.

This was really fantastic, great job!

Human: “I’m the most powerful thing in the world!!!” Insects , spiders and plants :” Without me your dead.” Human :”WHAT!!!!!”

@RainbowFlowerCrow

2 жыл бұрын

*NANIIIII!*

@naturespecialist1489

2 жыл бұрын

@@RainbowFlowerCrow yep its that simple plus the insect food chain is very huge it could be as the second largest food chain the largest being the ocean becuse we haven't found all the animals yet

@youtube_user9110

2 жыл бұрын

Bacteria and fungi: are we invisible?

@naturespecialist1489

2 жыл бұрын

@@youtube_user9110 Tree:” Your my partner in crime!!!!”

@naturespecialist1489

2 жыл бұрын

@@youtube_user9110 Leaf Cutter Ant:” Look at me we have been together for billions of year we work together!!!! Your not invisible!!!!!”

Also giant animals usually have fewer babies and gestate longer, and that can be a disadvantage.

Wonderful message, what a great ministries. Glad to have you folks here on the interwebs!

Thank you, this series was amazing.

Coincidentally, this is the exact period of time we're currently covering in my Anthropology class

@marlonmoncrieffe0728

2 жыл бұрын

What sort of anthropologist do you want to be? Archaeologist? Cultural anthropologist? Linguistics anthropologist? Physical anthropologist?

@21LAZgoo

Жыл бұрын

do they say the megafauna that wasnt in africa and south asia went extinct because of human coevolution

I'm loving this series. Already have watched all of Joe's videos on this channel, and I always wonder why the subscribers aren't 10 times!

This was a great series. Hope to see more of these.

This episode was very interesting, thank you joe. Keep up your amazing content.

I know this is supposed to be a mini series but I just love the interaction and chemistry between the 3 hosts and I wish it could go on and on!

Another subtle point on the potential interactions between human impact and other factors. If the climate was reducing the mega fauna numbers and humans were also hunting those animals, declining numbers might make settling in the next valley over more of an imperative for any peoples that made their living hunting those same animals than might be the case with more stable populations. So did human migration cause mega fauna numbers to drop, or did dropping numbers encourage humans to spread more quickly to keep finding game?

Please make more episodes of the series. I learn something from every episode.

Hi joe This series is so good.. I want you to continue.. What inspired me giraffe chewing bones .. Thanks for the series..

I still believe that some of the megafauna extinctions were caused at least partially by human hunting. It makes sense now that mammoths may have been having a hard time already, but I think we definitely are responsible for a few of those extinctions. Not the majority, but a few.

"Vat of sticky pickles" I wish I could unhear him say that.

What a great work... Awareness with knowledge. ❤✨💫

10 minutes into the video my stoned ass randomly went "All three of them wear glasses.... And so do I" I got issues.

Watching this was really interesting! I wish I could have the chance to see these fossils in person. It would be like looking at history.

If you really think about it,… it’s not super crazy to believe that humans can travel from the tip of Alaska to the tip of Argentina if they had 1000 years to do it.

@21LAZgoo

Жыл бұрын

what about trying to kill all the megafauna in north and south america in that time period too

Depressing as the end of this video was, I absolutely loved this series and I learned so much good stuff. I hope you're able to do a second "season" of this series.

@21LAZgoo

Жыл бұрын

dam whats wrong with the end of the video, the climate change we are having right now is the smallest and slowest climate change that has happened in the entire holocene

@semaj_5022

Жыл бұрын

@@21LAZgoo "Smallest and slowest climate change" how, exactly?

@21LAZgoo

Жыл бұрын

@@semaj_5022 what you mean how. look at the greenland ice cores climate history of the last 15000 years, even the medieval warming period 1000 years ago made the earth more warm than now and made it warm quicker than what is happening now. i don’t get why the people in this video say that the current global warming is much faster than changes in the past, when that is a complete lie. if anything, the current warming shows that even though it is the smallest and slowest climate change in the entire holocene, a lot of people are still suffering from it, and for comparison the current global warming is around 1.3 degrees fahernheit since the start of the industrial revolution which started some time between 260-170 years ago. imagine what happened 11700 years ago were to happen now, when the earth warmed 18 degrees fahrenheit *in less than 10 years.*

Incredible as always!

The moment when you realize we are an invasive species

@Teo_spot

Ай бұрын

Real

@Djemoltellitlikeitis

23 күн бұрын

Because we are not all from here

@MikesLeTour83

10 күн бұрын

We are all African-American………. or African-whatever

I'd love to hear more about how the climate changed at the end of the Pleistocene. Do we know about how it impacted ocean currents and things like wind patterns?

@21LAZgoo

Жыл бұрын

as for wind patterns im not sure, but ocean currents, yes. it also caused the largest mass extinction event in 5 million years, yet the people in the video say we are experiencing much quicker climate change now than we were at the end of the ice age

Loved this series! What a great team of science communicators, brought together like the Power Rangers or Captain Planet to create awesomeness even greater than the sum of their parts! Especially love anytime I can get some Emily Graslie content. :) Also, not to take away from the important science/conservation message, but that Jahawi Bertolli, wow, what a cutie. ;)

A really amazing series. Hope it can reach to more and more people

I wonder if the tar pits would have any sort of fungal fossils to see. It would be interesting to see how those early pioneers of land and soil have hanged over time! Really enjoy this series keep up the great work!

It seems to me that each new video has less of an educational tone and more of an entertainment tone, which I see as rather detrimental to the quality. Hopefully it's just the series that was going on and now things will return to normal.

@walterward1829

2 жыл бұрын

Everything is subject to feedback loops. If more people watch 'Entertaining' shows than 'Educational', then you will naturally see more 'Entertainment'. Don't blame the show, blame the watchers.

That last part was more than crazy enough... Encore!

It made me happy to hear “You didn’t even realize it but you probably already did”

Very good. Megafauna extinctions have been going on continuously since the beginning. Complexity in systems is one of my pet interests. The butterfly effect is real and it doesn't seem to take all that much to make huge changes. PS I just heard rather convincing evidence of humans in the Yukon 24,000 BP.

@RainbowFlowerCrow

2 жыл бұрын

Very interesting! And today I learned a new term: BP = Before Present in history! And now I'm interested in learning about humans being in the Yukon 24,000 years ago!

@toLothair2

2 жыл бұрын

How about the Smithsonian saying that humans from europe were in North America as long as 100,000 years ago?

@21LAZgoo

Жыл бұрын

what about the 250,000 year old mastodon pelvis that has a mastodon carved into it and also tools, which while tools cant be directly dated they were found in a 250,000 year old stratum layer in mexico

I would say the closest thing left that North Americans have to the Pleistocene in terms of Megafauna would be Yellowstone, Alaska, and Northern Canada, and for South America the Amazon Rainforest.

11:20 “every time i see stuff stored in pill capsules i have like … an innate urge to swallow it” 😆

this was so beautifull omg thank you!!

Glad to see Emily finally get some focus on this series, looking at specimens reminds me of the brain scoop

I am starting to miss the old format of the show which was far more concise, precise & to the point. Nowadays, it's more like a talk show that more often than not wanders off track from the actual topic, sometimes so much so that it starts to seem boring and confusing. Please bring back the original "It's Okay To Be Smart" - that would actually be a smart idea I guess.

@numerum_bestia

2 жыл бұрын

You aren’t the only person that has noticed. They likely had trouble maintaining an older audience so they are trying to target children by constantly making jokes that only a 10 year old would laugh at. That and constantly referencing modern pop culture, things that have little to nothing to do with the subject matter. Views = $$$. It’s as simple as that. Can’t really blame them, it’s probably not even their choice. They are run by PBS and they want to keep the lights on. It’s similar to how the history channel started losing viewers so they shifted their target audience. Conspiracy theory’s and aliens appeal more to the average idiot. There are plenty of other channels that handle these subjects more seriously if that’s what you want. I don’t think they care about your opinion and even if they did, it’s likely out of their hands.

@vivekchoudhury6648

2 жыл бұрын

@@numerum_bestia I absolutely agree with you

@21LAZgoo

Жыл бұрын

they had some good info, but the things they said like about coevolution being why africa and south asia still have a lot of their megafauna and how modern climate change compares to the changes at the end of the ice age are straight up lies

Man, the comic reliefs in your videos are what allows me to get smarter everyday

As another comment said, I wish these videos get the attention they deserve. The quality is really outstanding, this comment is my contribution to appease the algorithm

This kind of videos fascinates me more than any other kind of content nowadays... I feel like, in the next 30 years, we will experience some reality checks and bingos. For better or for worse.

What about the Younger Dryas impact hypothesis? This hypothesis would literally explain every single phenomenon during this period. Humans didn't change the climate, but an extraterrestrial impact sure would.

@couchgrouches7667

2 жыл бұрын

It wouldn't explain why the megafauna on Madagascar and New Zealand went extinct in the 14-1500s coinciding with the arrival of humans.

@TheFlyfly

2 жыл бұрын

im pretty sure thats a heavily criticised hypothesis, so i wouldn't place my bets on that. en.m.wikipedia.org/wiki/Younger_Dryas_impact_hypothesis

@jesse_campbell

2 жыл бұрын

The timeline is right, at least-12,000 years ago...

@keithprice475

2 жыл бұрын

@@TheFlyfly It is, but I think we have good reasons to doubt the criticisms - see this amazing series of videos on the ENTIRE scientific literature on the YDIH for more detail on why than you probably want: kzread.info/head/PLftb0lOpSe9PvJhFKSueZV9Wrz4g1qRkr

@21LAZgoo

Жыл бұрын

@@couchgrouches7667 well, humans arrived in europe tens of thousands of years before they arrived in north america, yet mammoths in europe and north america still went widely extinct 10,000 years ago

I can't believe how hard I laughed at the though of having a giant Chigüire here in Venezuela. I mean, he is the biggest rodent on earth, BUT HE COULD BE BIGGER.

Scientist: _"This is our single most important specimen. It contains the answer to everything. Because it's so fragile, we store it inside a special protective pill."_ Emily: * *nom* *

Humans are almost completely at fault. It's so sad. 😞😡😭

This has been an amazing series. Great work guys! Thank you for bringing it to our homes.

This stuff is what got me to be currently pursuing my degree in bio. Cause I want to understand the world around me in such an intimate way. And seeing this kind of stuff always continues to reignite that passion when the hardships of college blur my vision. Thank you for this. I'm not gonna lie, I got really emotional near the end cause envisioned myself in that chair... hearing those words.

From a few days I was actually having the exact same question in my mind for it. Finally something to think upon.

I think the ice age was a bit of an evolutionary trap for mammals. They were encouraged to get bigger, specialize for cold, and specialize to competing with other big fauna, most fauna had no choice but to grow bigger. Once the ice age started ending most fauna had been so ingrained in that niche that they couldn't adapt quickly enough, their size became a detriment instead of a benefit, and in general made them less adaptable. The ice age caused most decently sized fauna that were generalists to grow bigger and become specialists, once the climate took a turn these newly formed specialists couldn't adapt as quickly as the generalists who were often smaller. Thankfully humans are specialists at being generalists.

@chrismcaulay7805

2 жыл бұрын

always good to see an intelligent comment on youtube... heaven forbid people think about things from a multi step logical analysis...

@EcologyEthologyEvolution

2 жыл бұрын

Not really though, the "ice age" was not actually one solid block of time where the climate was cold. For the last 2.58 million years there have been cold glacial periods and warm interglacial periods that oscillated back and forth for millions of years. At certain points New York State would be buried under hundreds of meters of ice, and at other times there would be crocodiles and hippos on the British isles (warmer than even today). Those large cold adapted animals moved north or south with changes in temperature over thousands of years, and most of them only went extinct this last time around after humans reached them. We are currently still in the ice age, and will be unless we warm the planet so thoroughly that both the Arctic and Antarctic melt completely.

@graysonsmith7031

2 жыл бұрын

@@EcologyEthologyEvolution just a thought. There was significantly more "ice" though, on average it was cooler. I'm not going to strongly defend my theory.

@eliletts1680

2 жыл бұрын

@@EcologyEthologyEvolution aside from the crocodilians in the British Isles, everything you said about the Pleistocene epoch was pretty spot on! 👍

@21LAZgoo

Жыл бұрын

@@EcologyEthologyEvolution 74 out of 88 species of australian megafauna were extinct by around 85000 years ago, which is around 15000 years before the first humans went into australia, an the 14 species that were still there coexisted with humans for over 25,000 years and then suddenly went extinct right when there is increased aridity, which shows that climate can cause a lot of animal species to die out without humans. plus mammoths died out in europe around 10000 years ago which is the same time they died out in north america, and humans reached europe many tens of thousands of years before they reached north america

when is this series gonna end?

I have really enjoyed this series

Wow. Speechless on so many levels.

I think (from my small knowledge of the world) that tiny creatures survive massive changes in their environment, better than large creatures. Take ants, Mice, Rats. They seem to survive anything. Koala bears... no hope.

@MrWizeazz

2 жыл бұрын

Koalas seem like an evolution anomaly as to why they even survived this long, kinda like giant pandas. They eat something that is somewhat toxic to them and gives them little too no dietary energy needed for survival.

@DLCS-2

2 жыл бұрын

@@MrWizeazz but they get aggressive when provoked.

@YounesLayachi

2 жыл бұрын

Koalas aren't bears, and neither are pandas

@CubicSpline7713

2 жыл бұрын

@@YounesLayachi I never said they were!

I always love this Chanel and meeting Emilie again is just the best

I can't believe you guys did not cover the impact theory! 2 clusters of asteroids hit earth 11600 years ago and again 12000 years ago causing rapid warming of the earth. It hit the ice sheets in North America causing massive flooding across the world. Please do another revision of this video!

19 April 2022 11:20 Nonton KZread 11:22 City Beautiful US European Zoning Comparison 11:45 OBF Why China Is Building Their Own Europe 11:55 Kekamar Mandi 12:04 Paolo From Tokyo Things Okay In Japan But Illegal Around The World 12;21 Arkive Singapore Is Insanely Well Designed 12:25 Bunda Naik keatas 12:33 Bloomberg Quicktake How Singapore Use Sciences To Stay Cool 12:48 Be Smart Mystery Of Earth Dissapearing Giants

Early humans and Neanderthals have seen some crazy things then 🔥

@21LAZgoo

Жыл бұрын

fr man

I love this channel and I love this topic especially it's really interesting, but this series specifically seems really awkward to me. Like the information in this video could have been a 5 minute explanation. The uncomfortable zoom call style delivery doesn't sit right with me

This series is the best!

brilliant just brilliant .thank you .

9:23 , a side-by-side comparison of human of different phylogeny, this size difference is consistent everywhere I look.

@y37chung

2 жыл бұрын

The bigger race will go extinct :x

Im Not for the comedy, i Just want Informationen

WOW You always put out top-notch videos

Awesome presentation. I never subscribe to anything on KZread…until now. Great job.