How Humans Lost Their Fur

Рет қаралды 3,446,904

Күн бұрын

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We’re the only primate without a coat of thick fur. It turns out that this small change in our appearance has had huge consequences for our ability to regulate our body temperature, and ultimately, it helped shape the evolution of our entire lineage.
Thank you to Julio Lacerda ( / juliotheartist ) for the excellent Australopithecus and persistence hunting Homo erectus illustrations!
Produced in collaboration with PBS Digital Studios: / pbsdigitalstudios
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References: docs.google.com/document/d/1l...

Пікірлер: 8 600

@metalzizar 3 жыл бұрын

I'm not going bald, I'm evolving.

@dalphonhamilton9980 3 жыл бұрын

I never though to look at losing my hair in that light. Now, I don't feel so badly about being bald. 😂😁😂😁😂😁

@romariomejia5396 3 жыл бұрын

I always thought it was weird how we have alot of hair ontop of our head

@zasproductions9258 3 жыл бұрын

My art teacher is bald. He had evolved way too far beyond

@1jamesnigh 3 жыл бұрын

God only made so many perfect heads. On the rest, he put hair. 😉 😊

@bankusmomentus3034 3 жыл бұрын

your right

@lukekoeferl2995 3 жыл бұрын

Human persistent hunting is literally the stuff nightmares. tall thin creatures slowly chasing you forever until you die. you can outrun them for now, but they’re still coming and there’s nothing you can do to stop them.

@jmmaribong4350 3 жыл бұрын

🤣🤣🤣

@Austin-cn8vh 3 жыл бұрын

And on top of them planning they might even start throwing things at you when you stop moving.

@adams3560 3 жыл бұрын

@@Austin-cn8vh Sharp things.

@katesmyth4839 3 жыл бұрын

It follows 😳

@likira111 3 жыл бұрын

Ah, middle school

@PeeperSnail Жыл бұрын

The fact we opted for the weirdo “I’ll keep running and running and running” hunting method is so funny to me.

@wwaynemcg Күн бұрын

Persistence paid off.

@Antelopesinsideme Жыл бұрын

A man who lived with a tribe in the Amazon or something, said they ran for 5 hours and the tribe only stopped for a handful of muddy water, then kept running. Literal machines & all extremely physically fit

@eliezeretecap Жыл бұрын

I saw Joe Rogan interviewing David Choe and he told that story when he travelled to look for dinossaurs.

@sirreginaldfishingtonxvii6149 Жыл бұрын

How easily we forget what wonders our bodies are capable of.

@Antelopesinsideme Жыл бұрын

@@sirreginaldfishingtonxvii6149 we aren't forgetting we just never get the chance to experience it. Because a lot of us would die doing so.

@utahcornelius9704 7 ай бұрын

@@eliezeretecap Joe Rogan is an idiot masquerading as a genius. The laughable part is that some people buy it, and they are making him a fortune.

@jameslonggood9707 3 ай бұрын

You seen thaton joe rogan

@ManicPandaz 3 жыл бұрын

You know when you look at a sphinx cat and say, “oh my god what happened to that cat?!?”, that’s what other apes think when they look at us.

@hanin3128 2 жыл бұрын

Okay this brought a chuckle in me 😂

@eehyetti 2 жыл бұрын

That’s exactly what I thought while watching the video and then came down to find your comment 😃

@Guardian978 2 жыл бұрын

"Fellow ape, what happened to all your fur?"

@travelindiatreasures 2 жыл бұрын

😁😁👍👍

@HeatherSaltas 2 жыл бұрын

I thought about hairless animals too lol some people think they’re so ugly…we’ll sorry buddy you’re one of them 😂😂😂 I think hairless animals are adorable!!!

@Rubrickety 3 жыл бұрын

When do paleoanthropologists think Homo Erectus first evolved the ability to conceal its genitalia via clever camera angles and obstructing props?

@arvantsaraihan5777 3 жыл бұрын

omg SKSKSKSK I just noticed them

@morganseppy5180 3 жыл бұрын

Enquiring minds want to know!

@leogama3422 3 жыл бұрын

Probably when they became Erectus and embarrassed in public for the eternity.

@kevincotterell3644 3 жыл бұрын

Do you think the Erectus bit relates to their stance?

@francissreckofabian01 3 жыл бұрын

not to mention their buff bods. They must seriously work out.

@Avintrue Жыл бұрын

Jane Goodall also suggested that we spent time in water, another way to cool down, which also caused most other mammals to go hairless. As it happens, prime apes today will always walk bipedally in water which could point to how we began to walk bipedally more often as well.

@Brandi6666 6 ай бұрын

Well i rekon they would have drowned if they didn’t stand up in the water😊

@rimrejects 6 ай бұрын

with no proof at all. completely assumptious, and a figment of her imagination.

@BBMc107 6 ай бұрын

@@rimrejectsand that is how theories begin. Many other anthropologists believe we lost hair by swimming and considering our beginnings next to the sea, it makes a lot of sense. In fact, it makes more sense than jogging it off. We evolved in the Rift Valley with mountains, rivers, streams and ocean, rather than open plains.

@rimrejects 6 ай бұрын

@@BBMc107 where’s the evidence for humans, or any species for that matter, evolving into a completely different kind. It’s all narrative.

@pt14930 4 ай бұрын

Don’t think it was Jane Goodall, was Elaine Morgan and a theory called The Aquatic Ape. David Attenborough did a documentary on it years ago, very interesting and talks about the water giving us ‘blubber’.

@acslater017 Жыл бұрын

I probably come to this realization after every Eons video, but it’s simply stunning how much we know about life, history, and our planet. So much of this was unknown just a few decades - and definitely a few centuries - ago. We have come to know so much, the last remaining questions are things like, where did the entire cosmos come from. And in a sense we do have decent, if incomplete, answers at that. And now I’m absorbing an overview of a few million years of evolution on my handheld supercomputer in my climate controlled bedroom. The power of science to enlighten and improve the human way of life is without compare.

@Britton_Thompson 9 ай бұрын

*Word of advice...* Don't store too much of it. The info will be changing in a few years. Trust me.

@rogerroth7782 7 ай бұрын

Ah my bed is where I spend much time with my phone.

@utahcornelius9704 7 ай бұрын

@@Britton_Thompson It does change. Progress and the accumulation of knowledge is not a straight line up. It zigs and zags. But if you look at any decent time interval, say twenty years or so, you can easily see that overall our knowledge is moving upward. What we do with it is another thing. Some people, of course, will take the opportunity of a zig or zag to assert that science is and experts are unreilable and worthless, that any old person can use their common sense to know what is what. Well, pretty much all of medical science, for one example, disproves that notion. Which is why we go to an oncologist if we have cancer. Disregard their advice at your own ignorant risk.

@krishhhhhhhhhhhhhhhh 6 ай бұрын

Pretty sure we're entering the next stage of evolution in the coming decade. Artificial intelligence. It's going to take over sooner or later. So much for all that running in the savannah. 😅

@shaderbytes 3 ай бұрын

you think science is going to tell you where the entire cosmos came from..?

@casbot71 3 жыл бұрын

*Tier Zoo:* Human sweating is OP.

@bromicorn 3 жыл бұрын

Well,it is

@rafael9886 3 жыл бұрын

Indeed

@ChillAssTurtle 3 жыл бұрын

Highly based, very pog.

@phillipowen3149 3 жыл бұрын

I’m sweating rn! Lol

@Dichtsau 3 жыл бұрын

this would've been a perfect topic for a collab :p

@choobooloo1 3 жыл бұрын

That is some very strategic gazelle ear placement.

@barneyrubble4293 3 жыл бұрын

Relevant username?

@horseenthusiast1250 3 жыл бұрын

And antler placement!

@steveharrison3007 3 жыл бұрын

That's evolution for you.

@jeltje50 3 жыл бұрын

@@horseenthusiast1250 well the antler is part of the gazelle

@GothPlatypus 3 жыл бұрын

It's an Nyala, they are way bigger than Gazelles and have different colouring

@lightning77125 10 ай бұрын

This is one of my favorite Eons episodes. All of the human evolution ones are. I've always thought: we're such a unique mammal! We're the only mammal that stands on two legs, the only mammal without fur, blubber, or any other thick insulative substance, and so on. These videos explain them in a clear and concise(as well as fun) way, and I love them!

@Homo_sAPEien Ай бұрын

We’re not the only mammal without fur. First, we do have some fur, just not as much as most mammals. Second, there are many examples of other mammals that don’t have much hair, some which have less than us in fact. Elephants, rhinos, hippos, whales, aardvarks, I could go on. There’s plenty of examples of mammals that are relatively hairless.

@apolloeosphoros4345 23 күн бұрын

Well.. some of us still have blubber :D

@gramsay69 Жыл бұрын

The fact how they gathered all those informations is absolutely incredible.

@popindosin228 3 жыл бұрын

Title: How humans lost their fur Me looking at my belly: They know nothing, my friend.

@judas1523 3 жыл бұрын

we still have it. its just not as thick as before

@popindosin228 3 жыл бұрын

@@judas1523 You sure about that?

@mimi45945 3 жыл бұрын

As a full blown Latino i know about body fur...

@jonnyrocket3659 3 жыл бұрын

In some avenues of the variations of the Homo-erectus species, some Neanderthal genetics are still prevalent

@pendlera2959 3 жыл бұрын

@@jonnyrocket3659 True. However, that doesn't mean high levels of body hair are always caused by Neanderthal genes. If humans lost body hair due to natural selection, then we can assume some humans had more hair than others. It's possible that once a certain point was reached, more or less hair didn't make enough of a difference, so those genes passed on. It's also possible that when humans started wearing more clothing, the selection pressure against hair was reduced, also allowing those genes to pass on. Thus, whether or not a person has lots of body hair might not be based on their Neanderthal heritage.

@Alias_Anybody 3 жыл бұрын

"What did 500 million years of evolution lead to?" "Naked sweaty men"

@i95smuggler 3 жыл бұрын

😂👍🏼

@erikperhs_ 2 жыл бұрын

Sounds great, honestly

@Tifrybfwnsfb 2 жыл бұрын

Mmm😋 Jk😂

@revoconner 2 жыл бұрын

Water cooled xD

@pizzaface117 2 жыл бұрын

18 of them too...

@workmix5246 6 ай бұрын

Major props for clarifying your use of the word “we“ I wish more people would. The most carelessly bandied-about word in the English language- in any language.

@airmoney_1587 Жыл бұрын

the loss of fur for sweating is more beneficial in terms of releasing heat but also cooling during that process. evaporative cooling really does work, you ever sweat a bunch then transition to a place where you’re not sweating anymore and feel super cold. when our ancestors finally sat down under a tree after running after a deer for 5 hours, i’m sure their sweat drying up felt like AC on a summer day. another analogy that can be used to demonstrate this is when you rub alcohol on your skin it feels super cold and dries up quick, this is because alcohol evaporates almost immediately from your skin and you’re feeling the cooling effects of evaporation

@utahcornelius9704 7 ай бұрын

Yeah, anti-perspirants are a double-edged sword, especially without AC.

@sboneliberator1977 3 жыл бұрын

bruh just imagine being an animal and being like "phew I lost those humans" and then you just see an army of screaming monkeys with spears charging at you.

@geraldfrost4710 3 жыл бұрын

Each with the newfangled atlatal, an extension device that doubles the throwing distance. You thought the silly human gave up. He used communication skills to obtain backup. Humans are OP in crafting and communication. We've min/maxed fur for brains.

@MadRabbit0wnzu 3 жыл бұрын

We are designed to throw, and rocks are everywhere. Many villages in Asia throw rocks and use simple slings to hunt, so it's speculated we had tools and probably picked up a 3lb rock to hunt with then use the tools to get the meat, I mean I killed squirrels and birds the same way as a kid in the country. My 2 year old can throw a tennis ball 20 feet with no coordination

@sboneliberator1977 3 жыл бұрын

@@MadRabbit0wnzu what does that have to do with my comment?

@Stonecargo21 3 жыл бұрын

*Tall, naked, sweaty figures running at you appear over the horizon*

@terrasolaris5104 2 жыл бұрын

@@sboneliberator1977 It has to do with your comment because it extends the case for how dangerous humans have been to animals that they outran, outsmarted, and outthrew.

@kaleidoscopicepic14 3 жыл бұрын

Having once had the experience of being unable to sweat for a period of several months, I can say with certainty that sweating is a deeply underrated human ability. You may think sweating is gross or inconvenient, but it's a whole lot better than not sweating!

@jolenethiessen357 3 жыл бұрын

Truth. Our daughter has to take an antiepilectic medication as a toddler that has the unfortunate side effect of suppressing your ability to sweat. That was the most stressful summer ever! We had to be so careful how hot she got! Fortunately, we failed that med and moved into another. It took years for her to fully recover her ability to sweat!

@neolexiousneolexian6079 3 жыл бұрын

@@jolenethiessen357 ...I would probably freak, and just constantly spray myself with water if I lost the ability to sweat.

@joshua_ito 3 жыл бұрын

This isn't really the same, but one time I lost my voice from screaming too much the night before, and it was absolutely awful not being able to join in conversations and having to keep everything I want to say in my head. It's like I didn't even exist :(

@WildFyreful 3 жыл бұрын

@@jolenethiessen357 ...Out of curiosity, was that antiepilectic medication called Tryleptol? Because I took that as a kid as well, and that got frightening and frustrating in elementary school. Recess in a Texas summer is hell on its own, but not being able to sweat and with minimal shade on the playground was actually straight up dangerous for me. Not that the school cared. No amount of my parents trying to convince teachers to let me stay inside and read ever worked. I'm genuinely lucky I didn't die of a heat stroke.

@ChristmasLore 2 жыл бұрын

I sweat very little, and indeed, overheating is a problem.

@The1stDukeDroklar Жыл бұрын

This is most likely how we were able to hunt very large and powerful animals without suffering constant losses. Just need enough hunters, possibly using torches, to scare them enough to make them want to run rather than fight. In time, they were so exhausted they could not run or even defend themselves, allowing for an easy and safe kill.

@xonx209 5 күн бұрын

Why didn't the prey animals also evolve to be hairless and out run humans?

@The1stDukeDroklar 5 күн бұрын

@@xonx209 Because overall their form was well adapted and humans posed little threat to the species because of that adaptation.

@LeoDomitrix Жыл бұрын

I think we overestimate the ancestral ability to hunt. Groups would drive prey into other members of the social group, who'd then drive it further toward exhaustion, etc., more than just three guys running down the gnus of the past. We also probably had some capacity to nest up and cuddle, as many animals still do, when chilled. Sweat, btw, is a hidden blessing. Beats wallowing in mud or living up to th eneck in water like pigs or hippos, respectively!

@JourneyLT 4 ай бұрын

Hippos can sweat. They also turn pink when they do it.

@susyshepard320 3 жыл бұрын

I was a nurse for almost 40 years. I've seen a lot of naked people and I've got to tell you some people still have " fur".

@MG-mj6zi 3 жыл бұрын

I worked with a guy that seem to have more hair than body. He always joked about it. I sort of felt sorry for him. He was a great guy with an awesome personality.

@abebuckingham8198 3 жыл бұрын

@@MG-mj6zi I also feel sorry for great guys with awesome personalities.

@MG-mj6zi 3 жыл бұрын

@@abebuckingham8198 Why!

@abebuckingham8198 3 жыл бұрын

@@MG-mj6zi You don't know? I mean, you said it first.

@MG-mj6zi 3 жыл бұрын

I see you are not one of them. You rather poke fun than to honestly help a person out. Thanks for the cue though...

@epenies 3 жыл бұрын

Persistence hunting is now called a 9 to 5. That’s how humans lose their souls.

@logon235 3 жыл бұрын

Not unemployment?

@cindycin9 3 жыл бұрын

😄😄😄

@Rick-ve5lx 3 жыл бұрын

Doing what people tell you to do even though you don’t agree with it. Crushes the spirit, that does.

@Nocturius_Fi-Core 3 жыл бұрын

Persistent hunting... you mean more than 3 minutes?? XD

@MW-fi7we 3 жыл бұрын

Persistent hunting is when you get a call from an insurance sales rep.

@ChrisG9978 Жыл бұрын

I look at my chest and back every now and again, and come to the conclusion that humans have definitely NOT lost their fur.

@akirakhan4790 Жыл бұрын

They mean a thinner layer of fur. Even with very hairy humans, they have thinner hair in comparison to a bear or dog or smth.

@joshthompiano Жыл бұрын

Great editing. I never knew you could tell that much information with the same three stock images of homo erectus taking down a gazelle with their bare hands and sweat glands.

@tprime2702 3 жыл бұрын

Persistence hunting today: **Drive to 17 different retail outlets looking for a PS5.**

@ironman332 3 жыл бұрын

Check Facebook market

@Dyrnwynn 3 жыл бұрын

@@ironman332 Nope. Not buying from scalpers.

@Dirtbag-Hyena 3 жыл бұрын

My mother did that for Beenie Babies.😆

@xuan.1611 3 жыл бұрын

@@ironman332 hehehe i have met 30+ fake ps5 seller now. I dont think its a good idea

@cyansloth1763 3 жыл бұрын

The hunt is ON my friend!!!

@anjap2746 3 жыл бұрын

As an Australian entering summer, I sure am glad I have 2-5 million sweat glands right now. My clothes might beg to differ though

@brunoventina7619 3 жыл бұрын

So gealous, here in Italy its like 15C during day time :(

@Lumberjack_king 3 жыл бұрын

It's winter in the rest of the not upside down world

@anjap2746 3 жыл бұрын

@@Lumberjack_king yes I own a television and the internet. Our media has also been consumed with white christmasses our whole lives so we get it :) trust me. Meanwhile I’m sitting with my feet in an ice bath to cool down.

@randomlyfree7964 3 жыл бұрын

I am sure americans will ask why is it summer in australia

@Banjo163 3 жыл бұрын

@@brunoventina7619 summerheat, its below 0 here since last month. Will last til about march

@hawsrulebegin7768 Жыл бұрын

Fascinating as always. Just hearing how we adapted to our surroundings over millions of years and then finally destroying ourselves and the environment in a relatively short years is breathtakingly stupid.

@utahcornelius9704 7 ай бұрын

I know, really? Somehow getting exponentially smarter about the world around us made us blind to constructing an existentially disastrous way of life in that world. The irony.

@wwaynemcg Күн бұрын

Longevity is increasing around the world. We're not endangered. The jury is out on the environment.

@honeybear8485 Жыл бұрын

Thank you for downloading excellent job on this video PBS did wonderful?

@GregoryTheGr8ster 3 жыл бұрын

One very critical aspect of having hairless skin is that you then can have tattoos, which are important for coolness (though not thermal coolness).

@warchild4974 2 жыл бұрын

No, but coolness is important to survival, I have a coverage of 2% coolness from tattoos.

@appalachiabrauchfrau 2 жыл бұрын

gotta wonder if black tattoos get hotter, brb gotta stand under the sun.

@toppermost66 2 жыл бұрын

and injecting metals and other unknown substances into your body

@realzachfluke1 2 жыл бұрын

@@toppermost66 water under the bridge, my friend. water under the bridge.

@indridcold8433 2 жыл бұрын

I have none. I want to stand out and not be like everyone else.

@casbot71 3 жыл бұрын

10:57 "having hair on our heads …" *A lot of Men over 40:* [sad noises].

@naciremasti 3 жыл бұрын

Peach fuzz.

@harryshepherd4232 3 жыл бұрын

Cave men wouldn't live past 40 so it doesn't matter to them

@Naiemaa 3 жыл бұрын

You could argue that bold men are taking this evolutionary trait one step further... maybe more evolved even 🤣

@nicholasneyhart396 3 жыл бұрын

Cries in 17 with receding hairline.

@suleimansghk 3 жыл бұрын

cancer patients: [sad noises]

@lauraflanagan9972 Жыл бұрын

I truly enjoy this channel and learning more about evolution. Please consider creating one that’s targeted to elementary school students.

@lisanidog8178 5 ай бұрын

I always wondered about this. Thanks for quenching my curiosity.

@starwarfan8342 3 жыл бұрын

So if hair is fur, does this technically mean my beard is a luxurious mane?

@nisteven 3 жыл бұрын

Yes

@calinfus80s 3 жыл бұрын

Yes

@Andy_Hendrix_9842 3 жыл бұрын

Yes

@jqjig820 3 жыл бұрын

Yes

@Sk0lzky 3 жыл бұрын

Only if it's luxurious

@mohsin90ish 3 жыл бұрын

3:24 "This has made a lot of people very angry and has been widely regarded as a bad move"

@sykens587 3 жыл бұрын

nice hitchhiker's guide to the galaxy reference :)

@pimd6998 3 жыл бұрын

Return to monke

@D0A17599 3 жыл бұрын

@@pimd6998 mmm

@marsupius 3 жыл бұрын

Many solutions were suggested for this problem, but most of these were largely concerned with the movement of small green pieces of paper, which was odd because on the whole it wasn't the small green pieces of paper that were unhappy.

@daverei1211 3 жыл бұрын

RIP Douglas Adams, my son and I have you fondly in our thoughts, we are currently listening to the original radio plays.

@guardiaguardia3017 5 ай бұрын

Excelent, and with your voice it sound easy to comprehend.

@sumtingwong4997 7 ай бұрын

Fascinating answers to Fascinating questions I've never thought to ask.

@t3hd0n 3 жыл бұрын

the person who counted all the sweat glands were def doing it for their phd

@mounawarabbouchi3019 3 жыл бұрын

Imagine all the knowledge we wouldn't have if it weren't for poor, underpaid, overworked grad student grunts

@mounawarabbouchi3019 3 жыл бұрын

@Phil Weatherley Personally? Nothing. I was in Comp Lit :P But I commiserate with my colleagues over in the sciences!

@Calligraphybooster 3 жыл бұрын

It’s what people do when they are madly in love🤣

@lukepier2918 3 жыл бұрын

getting a phd is persistence hunting

@LucarioredLR 3 жыл бұрын

"Trust me bro I'm doing it for science it's not like I have a fetish or anything"

@rubyamateurtactician4354 3 жыл бұрын

"They couldn't have survived being hairless at night" she says as I sit in my badly insulated room in a basement in the Midwest *in December.* Now, if you will excuse me, I'm going back to sitting closer to my space heater than is recommended.

@rubyamateurtactician4354 3 жыл бұрын

Ahhhhhh... toasty... 😊

@ronjayrose9706 3 жыл бұрын

What's a heaters???

@charlesroberts3650 3 жыл бұрын

@@rubyamateurtactician4354 Molto Bene!

@rubyamateurtactician4354 3 жыл бұрын

@@charlesroberts3650 uh... no hablo le French?

@melissamayhaps8990 3 жыл бұрын

I live in Phoenix. It was 99degrees last month. Hopefully December doesn't get that hot or we'll be having Christmas in the heat, like Australians. :P

@dwuagneux Жыл бұрын

I really enjoyed this and I like the direction that the hypothesis is going. I’m still curious about how we were then able to keep warm enough at night. Fire was still a long way off. You are right about the importance of sweating. I have a sodium/potassium imbalance and so I hardly sweat at all, which means that I do a fair amount of fainting in warm weather. Fortunately, I did not pass it on to any of our children. :-)

@mytube001 3 ай бұрын

I imagine they used animal skins and fur, and maybe collected grass/hay, along with various kinds of shelters.

@Secret_Takodachi Жыл бұрын

Proof that the term: "Sweaty try hard" is actual a compliment/term of endearment lol

@LunaticThinker 3 жыл бұрын

Me looking at my back in the mirror: We lost our fur?

@pokegard 3 жыл бұрын

Most of it

@Wheyooo 3 жыл бұрын

Haha

@q8ubermensch224 3 жыл бұрын

You are very slow in evolving, most of us lost the back hair

@hazzardgr712 3 жыл бұрын

@@q8ubermensch224 no

@TheHuggybear516 3 жыл бұрын

We going back to our roots homie! These hairless apes forgot where they came from.

@edmondgreen7970 3 жыл бұрын

I dunno. I've been to water parks. There's still a lot of humans out here with a thick covering of fur........

@bloodhunter4628 3 жыл бұрын

I am one of those humans

@bloodhunter4628 3 жыл бұрын

@PewPewZee LawL the hell r u talkin about?

@user-xg3un6pl5j 3 жыл бұрын

She forgot to mention beard hair and why it still exists she only talked about head,armpit and pubic hair I think she forgot beards exist

@dexterityisbetterthanstren8961 3 жыл бұрын

@@user-xg3un6pl5j facial hair looks cool... duh

@levicarpenter2996 3 жыл бұрын

Dawn of the Planet of the Apes?

@Rico-Suave_ Жыл бұрын

Watched all of it , just amazing and edifying

@kelpygerber 8 ай бұрын

i knew a kid who couldn’t sweat back in elementary school and i didn’t really think about that must’ve genuinely affected him. imagine being in 1st grade and having to stop every 5 minutes on a hot day because you don’t make that smelly, sticky skin water

@coltonbabb2705 3 жыл бұрын

Next deer season I’m leaving the rifle at home and just chasing them around until they collapse of exhaustion

@rickrandom6734 3 жыл бұрын

Ok. I suggest you start ultra running training program before doing that. 99.999 % of modern people live too soft life to hunt like that.

@interstellarsurfer 3 жыл бұрын

@Michael Miner Feel cold? Run harder. 😉👍

@coltonbabb2705 3 жыл бұрын

@@rickrandom6734 nice, I’ll look into using my rifle

@MartianCZ 3 жыл бұрын

I'm afraid it won't be the prey collapsing of exhaustion

@CR-zd7jb 3 жыл бұрын

My grandmothers brothers would do this. They would run hours through the jungle running after deer, which is pretty metal.

@momon969 3 жыл бұрын

"Hey, you know those skin pigment adaptations to intense sunlight?" "Yeah?" "Let's fight over that for most of our species' history!" "Okay."

@jmmaribong4350 3 жыл бұрын

Love this dark joke🤣🤣🤣

@mysinusesrkillingme3975 3 жыл бұрын

This.

@fenrirgg 3 жыл бұрын

Actually nobody cared until colonization of Europeans began like 500 years ago.

@ktg5713 3 жыл бұрын

Lollllll😂😂😂😂😂

@kindlin 3 жыл бұрын

@@fenrirgg I'm pretty sure all the way back in the BC's there was discrimination based on many things; tho, skin color may not have been a direct thing people were discriminated for, different cultures and regions were discriminated against and different cultures can have consistently different skin colors, so you can see how this was always, kind of, a natural extension of discrimination. Now if we can only get rid of all the discrimination, the world would be a better place.

@movingtargets7833 Жыл бұрын

"homo erectus hunting 5 hours straight" would be a good youtube video title.

@Helperbot-2000 Жыл бұрын

friendship ended with fur, now sweat is my best friend

@alphariusfuze8089 3 жыл бұрын

Humans: Lost fur Also human: Is cold other animals give me your *SKIN* *This is an unbalanced patch*

@emilyb9251 3 жыл бұрын

Tierzoo has entered the chat

@MrH2O1998 3 жыл бұрын

The ability to put clothing on and off their bodies is one of the most important traits that lets humans adapt to any climate in the world. The devs thought this is the best way to narrow down humans' roles but it was an unforeseen buff that expanded human builds that can excel in multiple servers.

@keremman1712 3 жыл бұрын

@@MrH2O1998 i read that update patch with his voice.

@fishsticks8198 3 жыл бұрын

survive, adapt, overcome

@TueSorensen 3 жыл бұрын

People only got cold after leaving Africa, so... that came later.

@trespire 2 жыл бұрын

The more I learn about our ancestors, the more I respect the abilities of Homo Erectus. Seems like a tough survivor, and succesful preditor.

@coolworx Жыл бұрын

Home Erectus will probably end up having a longer tenure than "the wise ape"

@james__anna_burns4885 Жыл бұрын

@@coolworxyeah definitely, it hasn’t even been 15,00 years since civilization started and we’ve already begun destroying the planet

@mrcool7140 Жыл бұрын

Definitely a stand-up guy 👍

@trespire Жыл бұрын

@@mrcool7140 Saw what you did there 😁

@dasstigma Жыл бұрын

A Homo Erectus child would likely wipe the floor with an average Homo Sapiens adult.

@Z_kun11 Жыл бұрын

*Upgrade Sweat?* Upgrade to sweat: “you may now run for a extra 5 hours”

@DDuMas 2 ай бұрын

I've been thinking about this the last couple of months. So it's an interesting theory about the sweat, I also hear that if we hadn't "lost our fur" it may have effected the intellegence we've developed as we have found many other ways since losing the fur for compensating for this. So losing the fur is one problem. The other one I have is that, okay, we've lost our protective fur, but why is the skin we have been left with, so weak and easily damaged, and overly sensitive? We don't even heal from this damage particularly quickly or have decent immune resistence to the contaminants we get in damaged skin. Our skin is so weak, it can be cut or damaged on anything, forget preditors. Actually, forget predators, our skin can't even handle insects. And the crazy part is, we're the only animal that has developed in this nonsensical way.

@mateusramosbon63 3 жыл бұрын

"our species is exceptional at persistence hunting" And yet I tire after 1 minute of running lol

@Uyhn26 3 жыл бұрын

LOLOL the SAD truth

@sasukeuchiha8648 3 жыл бұрын

Probably because we lack training. If we practice running for longer periods of time, I think our body would adapt and make us have longer endurance.

@juusomaenpaa7236 3 жыл бұрын

But in a real situation, like hunting down animals, you would have so much adrenaline in your blood that you would be able to run much faster and much longer

@keelanc1681 3 жыл бұрын

Technically you don't even necessarily have to keep up a run to do persistence hunting, so long as you are able to keep tracking your prey and keep it running from you enough to tire it out.

@sasukeuchiha8648 3 жыл бұрын

@@keelanc1681 Yes good thing our species dominated the food chain.

@annabizaro-doo-dah 3 жыл бұрын

Babies have fur in the womb called Lanugo. It's usually shed by the time they're born but some babies are still covered in it at birth.

@didihassan1572 3 жыл бұрын

@Snappy Ape power snack

@gregorysagegreene 3 жыл бұрын

ewww.

@omegaplaysbad 3 жыл бұрын

This is true

@case3474 3 жыл бұрын

i had that all over my back! :D

@alexe7012 3 жыл бұрын

*barf*

@dmagine2381 2 ай бұрын

When you said "Only humans can do persistence hunting" you are also ignoring the main reason why Humans domesticated wolves. Both the ancestors of Humans and Canis lupus were persistence hunters, Our ancestors saw potential in the wolves to make it easier for both species to co-exist and share resources.

@Krankenwagen571 14 күн бұрын

Why haven't wolves developed sweating and loss of fur ?

@judithhume9047 7 ай бұрын

Excellent...never even thought about this before.

@sudonim7552 3 жыл бұрын

Panting: air cooled, low heat dissipation, inefficient Sweating: water cooled, high heat dissipation, high performance, energy efficient, significant boost in processing power

@maxxiang8746 3 жыл бұрын

Phase change cooling

@prestigev6131 3 жыл бұрын

In short, humans can recover stamina faster than any mammal on the planet.

@DanDanJanJanJP 3 жыл бұрын

You are mistaken. Both are phase change cooling. The difference between both is the area where the phase change occurs.

@unvergebeneid 3 жыл бұрын

@@DanDanJanJanJP This.

@jamesduncanlinch6322 3 жыл бұрын

@@prestigev6131 no, some dogs are between , but they are few breads.

@rml2765 3 жыл бұрын

One of my favourite things about ancient human science drawings is the “potted plant” in front of males

@Sashazur 3 жыл бұрын

Or the “antelope ear”.

@ImieNazwiskoOK 3 жыл бұрын

Or fact that there are practicly no females

@steveharrison3007 3 жыл бұрын

@@ImieNazwiskoOK a common male sentiment.

@montycantsin8861 3 жыл бұрын

@@ImieNazwiskoOK of course. That requires more strategic placed objects, which weren't as plentiful in that era.

@FVanth 3 жыл бұрын

What about the image at 3:03 ?

@whyukraine 6 ай бұрын

Whoever said humans lost their fur hasn't seen me naked.

@paulpurington8637 8 ай бұрын

Great episode!! Good chuckles too.

@Lukiel666 3 жыл бұрын

I am 55. I am so happy to know I am not getting older I am just rapidly evolving.

@pandu2710 3 жыл бұрын

I'm guessing it's your head only. High five, fellow evolved hooman!

@EATONE818 3 жыл бұрын

I think im devolving

@neilchapman5145 3 жыл бұрын

Yeah well my hair is falling off my head and settling on other parts of my body. I’m not going bald I’m just redistributing my hair

@pandu2710 3 жыл бұрын

@@neilchapman5145 I presume they are moving downwards? It's called gravity buddy

@ChibDibs 3 жыл бұрын

More like retroactively decaying. We start active process of dying the moment we pop out the womb.

@guillermotaylor6506 3 жыл бұрын

WHERE IS STEVE?!?!?! WHAT HAPPENED TO STEVE, AND WHY AREN´T WE THANKING HIM?!

@GoodLuckSugar 3 жыл бұрын

Sadly he stopped being a patreon u.u

@jimcappa6815 3 жыл бұрын

They mentioned a while back that Steve was regretfully no longer able to financially support the channel. I miss Steve

@brunoventina7619 3 жыл бұрын

He was like a brother to me

@napatora 3 жыл бұрын

we miss you steve 🥺

@RedStefan 3 жыл бұрын

RIP Steve you'll be missed.

@shivam7156 Жыл бұрын

long distance running is the most overpowered hax we have 😂😂

@AN-nl9pu 8 ай бұрын

Humans have as much hair as chimps, our hair is just very thin.

@davidderubeis7335 6 ай бұрын

The video pointed this out, I believe.

@HandleMyBallsYouTube 3 жыл бұрын

The fact that we lost our fur and then started using the skins of dead animals as a substitute is absolutely *brutal*

@wikingagresor 3 жыл бұрын

Nature itself is brutal and we are a part of it.

@ESL-O.G. 3 жыл бұрын

It's awesome. Hey, can I borrow your skin

@BullShitThat 3 жыл бұрын

Some call this, 'a pro gamer move'

@adams3560 3 жыл бұрын

Fur has its uses. It’s just nice to be able to take it off sometimes.

@joudikativ7698 3 жыл бұрын

We woke up and chose ✨violence✨

@willboyheroify 3 жыл бұрын

So basically because we got a cpu upgrade, we needed to upgrade our cooling system to prevent from over heating nice

@xenomorphlover 3 жыл бұрын

Like the PS5.....oh wait (....console starts shutting Down due to high temperatures. ...🥵😒)

@troyforrester1991 3 жыл бұрын

Lol

@chengvang2126 3 жыл бұрын

Nope, wrong. We upgraded our cooling system which allowed us more wattage, the increase in wattage (energy/food) allowed us to increase our CPU.

@-TheUnkownUser 3 жыл бұрын

exactly my nerd boi

@peacewillow Жыл бұрын

very awesome explanation of human evolution. 💕 thank you. 🤗

@oliverjohnsheltonagar6995 Жыл бұрын

The Aquatic Ape theory is stronger.

@alex-fs9yt 3 жыл бұрын

_"Fur and hair are the same thing."_ So tigers are gingers?

@dianheffernan3436 3 жыл бұрын

Morris!

@agentmusk2842 2 жыл бұрын

Just like orangutans

@epauletshark3793 2 жыл бұрын

They have no soul.

@alex-fs9yt 2 жыл бұрын

@@epauletshark3793 I- Tigers have no souls or gingers have no souls?

@epauletshark3793 2 жыл бұрын

@@alex-fs9yt gingers have no soul. If tigers are gingers, they have no souls.

@marsbase3729 2 жыл бұрын

This was very interesting, as Eons always is, but I just wanted to add the hypothesis that pubic hair and armpit also may be an adaptation to help prevent chaffing during physical activity as it helps to prevent the skin in these areas from rubbing against skin.

@Zlinky.4220 Жыл бұрын

That and protection in the case of the pubic area. For women at least, pubic hair is a great barrier-almost like eyebrows-that catches things to stop possible infection

@RobRosendahl Жыл бұрын

Also, armpit hair is like a built-in evaporative cooler in each armpit.

@1unsung971 Жыл бұрын

True.

@bronwynshennan8793 Жыл бұрын

I concur

@indigosmyth7475 Жыл бұрын

So are you saying we shouldn't be doing lazer Brazilian's?

@romanNood1es 22 күн бұрын

I can’t believe you have photos of the first humans running.🤯

@komolkovathana8568 6 ай бұрын

Strangely enough, woodhog has 3 hairs in one drill, but they can't sweat. So it's the habit to lay-in mud-pool to cool-down.

@Dylan-vd6rz 3 жыл бұрын

Ah, such a cleverly placed antelope ear.

@steveharrison3007 3 жыл бұрын

All the better to hear you with.

@burtmacklin1939 3 жыл бұрын

Don’t forget the antler

@weaksause6878 3 жыл бұрын

3:49 Read this comment just at the right time. Made it twice as funny.

@geraldfrost4710 3 жыл бұрын

I always thought humans lost their fur in a nasty divorce battle when we left the monkeys.

@nikibineri3675 3 жыл бұрын

Hahahhsh this was the best comment

@TimDyck 3 жыл бұрын

Damn monkeys! They took our fur and our ability to swing through trees.

@cursedlemon7368 3 жыл бұрын

@@TimDyck we can still do both

@AspireGMD 3 жыл бұрын

@@cursedlemon7368 badly.

@paulvincentdomingo1755 2 жыл бұрын

@@AspireGMD lol bad on both

@cambuxton6835 Жыл бұрын

We still have a little bit of fur. It just very thin and called hair now. Or at least most people have a thin layer of peach fuzz. Some people also have very thick hair. Once in a while you see people who are covered with hair due to a genetic condition too. But that is rare these days.

@Homo_sAPEien Жыл бұрын

We didn’t lose all of it. Just most of it.

@jungletoe 3 жыл бұрын

Science: sweating has made us what we are today Scientist: "gross"

@adams3560 3 жыл бұрын

Kallie clearly has mixed feelings about sweating.

@haykojan6590 3 жыл бұрын

Embaressing

@alezar2035 3 жыл бұрын

The fact that it used to help is, doesn't mean that it does help us today And the fact that it does not and is a liquid full of bacteria is gross

@sciencefliestothemoon2305 3 жыл бұрын

@@alezar2035 Go for a proper run and you ll realize how important that is. And there is quite a difference between sweating into occlusive clothing than sweating to reduce your temperature.

@Agnemons 3 жыл бұрын

@@alezar2035 Try working in a +40C climate and then say sweating doesn't help.

@LuinTathren 3 жыл бұрын

What I learned from this video: Kallie really thinks sweat is gross. Really. Seriously, I loved this video. Fascinating topic.

@Gothic_Analogue 3 жыл бұрын

Methinks the lady doth protest too much, perhaps she’s deflecting her fetish? (Sarcasm)

@MarkdjRace 3 жыл бұрын

Only a desperate girl can say shyt like "Sweating was a huge perk for humans: It allowed us to out run and hunt animals like lions, leopards, cheetahs, bears. BUT SWEATING IS SO YUK! Hahahehe... :( Does anybody like me now? ;( " No... we can still see your face

@Gothic_Analogue 3 жыл бұрын

@@MarkdjRace you alright there? Bullied because of hyperhidrosis?

@MarkdjRace 3 жыл бұрын

@@Gothic_Analogue Instead of being sooo "grossed out" by one of most important human adaptation (in science video btw) maybe you could just find another way to feel included. Maybe to tell appeal to children to actually sweat once in a while - fight that obesity epidemic among your nation. Showing off with ignorance is wrong way to feel included. What do I know... roll on then.

@Gothic_Analogue 3 жыл бұрын

@@MarkdjRace I don’t recall the part where I eluded to being grossed out by water and oil being secreted out of a flesh crease. And we are fighting the obesity epidemic in the UK, by ensuring all the kids that need free school meals don’t get them. Duh! EDIT: wait, did you think I was a US citizen? Ahahahahhaha. You’re funny.

@GB-ez6ge 3 ай бұрын

My wife engages in persistence shopping but I can only last ten minutes.

@honeybear8485 Жыл бұрын

And yes I think you were spot on on pigmentation admination. Directly linked to descendants. Ancestories location on the planet

@benmiller5015 3 жыл бұрын

"humans don't have a thick coat of fur" hangs my head in shame. Guess that confirms it I'm not human

@benmiller5015 3 жыл бұрын

@@Yigash (makes chewbacca noises in response)

@morganseppy5180 3 жыл бұрын

so many men have "pelts"

@apocalypse487 3 жыл бұрын

I think you're confusing that with your sweater

@jaisanatanrashtra7035 3 жыл бұрын

Don't worry bro Eons have Primitive human fetish

@jimleane7578 3 жыл бұрын

Hey, it's ok to shampoo your back.☺️

@nathanfrancis9376 3 жыл бұрын

Just something else to point out - (Warning: kinda gross) We can also tell when we lost our hair by studying our lice. The closest relatives of head lice is chimpanzee lice, and they seem to have split the same time we and chimps did. But PUBIC lice, on the other hand, share an ancestor with gorilla lice, and seem to have diverged only 3 million years. Considering that they should have been outcompeted by the lice we already had, that indicates that by this point, hair was already reduced to a few areas on the body, allowing both species to live on us. Bit awkward, though...

@Sashazur 3 жыл бұрын

This is both the best and the grossest comment!

@nxdiaz5916 3 жыл бұрын

Interesting, who knew lice could be the grossest evolutionary time stamp ever.

@danilooliveira6580 3 жыл бұрын

that is actually super interesting, now I want to watch a Eons video about body lice.

@WintrBorn 3 жыл бұрын

And with the advent of... "landscaping", pubic lice are less common.

@davidgantenbein9362 3 жыл бұрын

Pubic lice are from gorillas ... I think there is a question in that statement best left open.

@gustavosouzasoares 10 ай бұрын

I'm really curious about the Austrolopythecus calorie counting conclusion, could you link the source of that research so I can understand it better?

@robertwheeler8994 4 ай бұрын

Loosing our fur? I happen to be hairy as hell.

@ArawnsFire 3 жыл бұрын

Our Apocrine glands also serve the function of scent-recognition. We on a subconscious level store the memory of each other via our individual scent. Mothers of newborns produce a particular body scent that infants use to bond, and research has shown mothers and babies can identify clothing worn by one another from a collection worn by different individuals. Close couples can also recognize each other’s scent from clothing in a blind test. Splendid video as always. Many many thanks indeed.

@pvallesol 2 жыл бұрын

When I was in school we used uniforms, so all our clothing were the same, but I swear that I could tell which sweater belong to each of my friends because each of them have a particular scent

@Rig0r_M0rtis Жыл бұрын

@@pvallesol I can tell who's been shitting in the toilet at my company by the smell. It's a curse I tell you

@r.i.petika829 Жыл бұрын

@@Rig0r_M0rtis wow 💀

@lambda1617 3 жыл бұрын

tl;dr: humans went to the top of the food chain by becoming sweaty tryhards

@ryvikun4325 3 жыл бұрын

We literally become sweaty tryhards...

@mattbowden1981 3 жыл бұрын

“Tryhards” is my new favorite word

@6_blocks_under 3 жыл бұрын

omg we're all sweats

@GirthQuake3 3 жыл бұрын

We literally sprinted during the warmup lap in gym class

@alfiewoodley01 3 жыл бұрын

Go vegan we’re not part of the food chain anymore (from a wildlife biologist)

@gibbogibbogibbo 11 ай бұрын

10:00 "we average about 1 liter per hour" talking about sweat loss. Hell no we don't. No human is drinking 24 liters of water per day.

@casualcanuck04 8 ай бұрын

So what you’re telling me is that if Bigfoot exists… he’s bald. Good to know.

@bobbun9630 3 жыл бұрын

So the next question to be answered is, "When did human hair become migratory?" All that scalp hair keeps moving to ears, back, etc...

@morganseppy5180 3 жыл бұрын

I don't know any specific research on male pattern baldness, but i imagine it's one of evolution's unintended casualties.

@tybarnes895 3 жыл бұрын

MPB can at least partially be explained by head shape, which cuts off elasticity to the scalp, causing the follicles to encrust. Having a larger brain, could explain the change in head shape, and may explain why it was never selectively eliminated by females.

@bobbun9630 3 жыл бұрын

You guys are missing the fun in characterizing the condition as "migratory" hair.

@camerrill 3 жыл бұрын

...nostrils...

@maxximumb 3 жыл бұрын

It makes you more streamlined and aerodynamic.

@lerquian1970 3 жыл бұрын

Imagine chilling in the savannah and suddenly some weird looking trees start chasing you for hours

@official.izanami 3 жыл бұрын

I laughed harder at this than I should have and I'm okay with that.

@jobinskywalker8167 6 ай бұрын

For some reason this video has been in my queue for years and I never watched it. It was great like always with Eons, but now I'm curious... How did Homo Erectus or other sweaty early hominids deal with water intake and salt intake?

@Homo_sAPEien Ай бұрын

Humans are definitely oddballs. Although there is also definitely a lot of diversity amongst primates, a lemur is very different from a gorilla. But humans definitely evolved in a particularly weird way.

@christophergranados9831 3 жыл бұрын

I'm starting to realize how unfit almost everyone is lol

@justinstewart4889 3 жыл бұрын

We actually are. We're great long distance runners. We just have to exercise to see those results, which are seriously impressive. There's a tribe in Mexico that does long distance running, and it's insane how far they can go.

@pauloazuela8488 3 жыл бұрын

@@justinstewart4889 I remember history with Greece with that one guy who marathon none stop just to deliver the message I forgot what is then he died afterwards.

@KWifler 3 жыл бұрын

Losing muscle mass and slowing metabolism is also a very important adaptation that allows humans to need fewer calories and thus have to eat less food. Otherwise, in times when less food is available, those energetic muscular humans would die quickly. There are modern day people with rare mutations that show this.

@pauloazuela8488 3 жыл бұрын

@@KWifler except for obese ones though 😅

@Eskimobrille 3 жыл бұрын

@@pauloazuela8488 i think you are talking about the greek guy named ...Marathon. Its named after him, and he ran 42 km before dying, the same length a marathon has :) Edit: I was wrong, it Marathon was the city he was running to

@BluJean6692 3 жыл бұрын

"Human beings don't have fur..." Lady, you haven't seen my uncle...

@evilsoup5279 3 жыл бұрын

@Cat Egorical A small price to pay for going back to monkey

@Dirtbag-Hyena 3 жыл бұрын

☝🏼 Ahh... But can he climb a tree like nobody's business?? Hmmm?? 😁

@naturespecialist1489 3 жыл бұрын

ah your Monkeys Uncle and yes that's a refence to a Zoo animal movie

@reverbscherzo7850 6 ай бұрын

The titles to these always remind me of the Just So stories by Rudyard Kipling. 💚

@Smerfiik2 Жыл бұрын

humans lost fur? you havent seen my back

@jsalinas2068 3 жыл бұрын

For those wondering, yes, some tribes in Africa are still using persistent hunting today, look it up, is amazing

@davidec.4021 3 жыл бұрын

Yup, do it, it’s actually incredible

@katesmyth4839 3 жыл бұрын

Yes. It was one nature programme that actually made me proud to be a human. The hunters are awesome. When they finally run it down exhausted, they humbly ask forgiveness of the antelope as they finish it off.

@danilooliveira6580 3 жыл бұрын

technically we are still doing persistence hunting with marathons... its just that the hunt is symbolic, but its the same idea, long distance running over speed.

@jsalinas2068 3 жыл бұрын

@@danilooliveira6580 u right makes sense

@danilooliveira6580 3 жыл бұрын

@@jsalinas2068 I mean... technically it symbolize Philippines running from marathon to athens to deliver a message. but I think you got what I meant.

@christopherphillips2649 3 жыл бұрын

Speak for yourself, I have a thick luxurious coat.

@hojjat5000 3 жыл бұрын

Me too brother. Me too.

@roddo1955 3 жыл бұрын

That's not fair! You're a bear!

@cdubsoptional7849 3 жыл бұрын

According to the sagas, you and I have what's called "troll's blood" coursing through our veins.

@cdubsoptional7849 3 жыл бұрын

I have hairs growing out of my knuckles, which I remember being teased about two decades ago in elementary school. Hairs on your knuckles means you're a crazy person, according to my classmates at the time.

@cdubsoptional7849 3 жыл бұрын

@Bad Horse My family genealogy goes back to the 700s. Pre Clovis. Yeah, there's definitely Neanderthal/troll blood mixed in. I pretty much have snow shoes for feet, so yeah, whatever you want to call them, Yeti or Neanderthal genes, I have em

@ginojaco 9 ай бұрын

I'm unaware if the paper about Australopithecus heat loss did the same. It is reasonable to suppose these creatures had methods for avoiding heat loss; two obvious ones are: a) covering with something at night, be it hay, dried leaves, animal hides or whatever; and, perhaps most obvious, b) sleeping in communal groups, this would greatly reduce net heat loss for individuals. In combination these could mean this species lost its hair much earlier than is supposed.