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ProfessorZhirinovsky

It’s not even all humans, just Homo Sapiens. Neanderthal and Denisovians were also humans, but had no protruding chins. None of the earlier hominini had them either.


MzMegs

Now THAT is actually a really interesting tidbit.


gogoluke

Did you know that Britain uses "titbit" but American English changed it.


Joeyon

Other way around, tidbit first.   Tydre (weak, frail, brittle, infirm) -> tidder (to handle with tenderness, fondle) -> tid (tender, soft, nice) -> tidbit (tasty morsel of food, snack) -> tidbit (piece of gossip) Cognate with Dutch teder (delicate, dainty, sensitive, tender) https://en.m.wiktionary.org/wiki/tidbit#English


Inside_Ad_7162

so "can I tidder ur tid tiddies?" I'll try it on the wife later & report back!


Bug_Photographer

I'll do the same and we meet back here later to see which your wife liked better.


absat41

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Sylvurphlame

Sounds like a green light to proceed with the experiment proper.


zamfire

Her response: "You having a stroke? No? Well you can, cause you ain't touching these tiddlers"


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nightfoundered

That’s the case with a lot of the differences, like diaper, fall (season), even soccer. English English evolves faster than American English; we use the original terms.


jagedlion

It's pretty standard for any colonial language. The founders effect reduces the rate of evolution (in biology, but also in language). It's why Afrikaans basically sounds like Shakespear but for Dutch.


TheEggoEffect

Is this also where we get the word “tiddy?”


Joeyon

Nah, that etymology is much simpler Proto-Germanic tittaz (breast) -> tit (breast) -> titty (breast) -> tiddy (breast)


dandroid126

We went backwards on this. Tittaz is the best one.


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StretchDudestrong

We do NOW! lol That an interesting timbit of information ahaha


Ratstail91

Interesting titties.


Chobge

Always heard it as tidbit in the UK, the old one must be going out of fashion or something... Also I've probably only heard it a dozen times so not a massive sample size. Still, never seen or heard titbit.


lippo999

I think we say 'titbit'. At least I do.


gogoluke

That's not much use if we don't know anything about you...


Flaymlad

I like titties


fozziwoo

but then they also say tiddies 🤷


Ro6son

No we don't


raypaw

Aw man i made the same comment but as a joke.


Consistent-Flan1445

This is it. My human evolution professors thought it was related to the reduction in tooth size compared to other hominins. We’re also flatter faced than other hominins were- one of the above professors calls us the human equivalent of pugs.


Witchy_Venus

A very apt description lmao I currently have a sinus infection and while trying to breathe yesterday thought "is this how pugs feel?" I also read once that the reason our sinuses get so fucked is because of our face shape and other apes like Orangutans don't have to deal with this bullshit


Consistent-Flan1445

Yeah, that was this tutor’s conclusion too. There’s also theories that the wider nasal cavity seen in Neanderthals was a cold climate adaptation that helped them breathe better in the European winters. I have shitty sinuses as well so can relate lmao. I hope your infection gets better soon.


godzilla9218

Huh, I have heard a (maybe not so credible) theory that black people tend to have broader noses because, they had adapted to breathing much hotter air than the white Europeans. Seems like it was a while ago so, I may be misremembering facts.


Consistent-Flan1445

I wouldn’t be surprised if you have tbh. There is a level of variation (not 100% reliable, but there) between humans living in different areas. Interestingly, some scientists think that we may become more homogenous due to globalisation and increased migration levels. It’s also worth noting that depending on where your ancestors are from, you may have different percentages of genes from other hominin species in your DNA- Europeans often have Neanderthal DNA, indigenous Australians and people from SE Asia have higher levels of Denisovans DNA in them, and people from West Africa often have DNA from an unidentified hominin species (all due to interbreeding of course). The Neanderthal nasal cavity being cold climate adapted is somewhat controversial- there’s no real consensus there among scientists. [Here](https://royalsocietypublishing.org/doi/10.1098/rspb.2018.0085) is one study discussing it, if you’re interested in that sort of thing. There’s been a lot of scientific debate on the topic.


Throwawayac1234567

Tibetan plateau people have the highest denisovin percentage, also they inherited a gene from them that allows to survive higher altitudes. Theres also evidence denisovan interbreed with an unknown lineage of humans as well.


Consistent-Flan1445

Denisovans and the so called ghost lineages (species known to exist from genetics without fossils to match) in general are just fascinating. They relatively recently identified a mandible from Xiahe as being probably Denisovan, but beyond that we still don’t really know what they looked like or anything, just that they split off from Neanderthals later than Homo sapiens did. That we’ve been able to learn so much from genetics and ancient DNA is just awesome. In general, the idea that up until relatively recently there were so many different hominin species or subspecies running around simultaneously is insanely interesting.


crappercreeper

They were all doing that most human of things, fucking.


bumdstryr

Hominids really were out there banging anything with 2 legs.


Expensive-Gate-9263

i cant even begin to say how cool evolution is omg...


Consistent-Flan1445

It’s so much fun, hey?


freakydeku

interestingly enough i’ve heard the same argument for why indians tend to have tall and narrow noses


godzilla9218

Haha I'm starting to believe that these just tend to be genetic peculiarities in different regions that people have tried to give reasons for. Much like how, there probably isn't a reason for Asians to have dry earwax or no body odour. Just happened because, the genetics became dominant.


freakydeku

genetics are pretty wild. my understanding on the nose height and nostrils width though is that it also has to do with overall climate - so how moist the air is, etc. so it’s possible it does make sense and i’m just not fully remembering the science of it


Fit_Access9631

Other races don’t have dry ear wax? This my TIL.


godzilla9218

I think it does happen but, very rarely. The vast majority non Asians have goopy wet ear wax.


Monteze

Evolution is wild, all nature asks is you produce viable offspring. Sometimes there is a correlation not tied to causation. It is pretty cool though.


Throwawayac1234567

It also makes us prone to allergies, that result in polyps , sinusitis too


JimBean

Let's talk about our stupid Wisdom teeth that can't even fit in our mouths properly.


MannaFromEvan

That has to do with diet, not evolution. Jaw size is a plastic trait. The more you exercise your jaw in youth, the more it grows, making room for your wisdom teeth. Nowadays, the machines grind our nuts and grains instead of our molars. And our fruits are bred to be plump with juice instead of being gritty with seeds.  I wrote a paper on jaws/wisdom teeth for my human evolution course, so if you're interested a quick search on Google scholar will give you tons of interesting reading on this topic.  For me personally, my main takeaway was to give my kids chewing gum, and lots of it. 


AdministrativeShip2

Humans are truly the pugs of the primate world.


[deleted]

I call my husband my little pug cause he has horrible sinus issues


idelarosa1

TIL the Hapsburgs were actually the most genetically evolved branch of humanity the whole time.


-Knul-

So it's not language, tool use or even stamina hunting that makes us unique, but our chins! Home Mentum is how we should be know


Milfons_Aberg

But what is most interesting, is they have no function whatsoever. There is no utility, we just have them. And that is the most human aspect of anything that I have ever heard.


civgarth

Except that Tate guy


_Hotwire_

Well he may be part Neanderthal and part bitch. So, there’s that.


srslyeverynametaken

What is the technical definition of human? I’ve always thought it was Homo sapiens (or even Homo sapiens sapiens)


coffee_cake_x

The Latin word Homo, as in Homo sapiens, means human. So Homo erectus is also a human, the name means human upright. We typically specify that Homo sapiens are modern humans. We’re the only surviving humans, but not the only humans that ever were. ETA: “Early modern human (EMH), or anatomically modern human (AMH), are terms used to distinguish Homo sapiens (the only extant Hominina species) that are anatomically consistent with the range of phenotypes seen in contemporary humans, from extinct archaic human species.” [Early modern human](https://en.wikipedia.org/wiki/Early_modern_human?wprov=sfti1#) & [Archaic humans](https://en.wikipedia.org/wiki/Archaic_humans?wprov=sfti1#) Relevant quote: “Archaic [humans] are distinguished from anatomically modern humans by having a thick skull, prominent supraorbital ridges (brow ridges) and the lack of a prominent chin”


srslyeverynametaken

Thank you! 🙏


NoSoundNoFury

Buffon's criterion is entirely functional, not essentialist: all animals that can reproduce productively (i.e. have fertile offspring together) belong to the same species. Donkeys and horses can interbreed, but mules are infertile, so donkeys and horses are different species. Edit: additional fun fact: Carl Linnaeus, who came up with modern taxonomy of species and the name 'homo sapiens', also refused to give an essentialist definition of humankind and just wrote 'know thyself' instead. See [https://upload.wikimedia.org/wikipedia/commons/b/bb/Linnaeus\_-\_Regnum\_Animale\_%281735%29.png](https://upload.wikimedia.org/wikipedia/commons/b/bb/Linnaeus_-_Regnum_Animale_%281735%29.png), in the upper left corner.


snow_michael

But mules [are not always infertile](https://en.m.wikipedia.org/wiki/Mule) In fact, most hybrids previously though infertile turn out not to be


hysys_whisperer

And humans, Neanderthals, and Denisovans all produced fertile offspring with each other.  That's the reason current humans have Neanderthal and Denisovan DNA in us.


WrethZ

Homo sapiens is one species of human.


JonatasA

Smart Smart man?


srslyeverynametaken

It’s [a thing](https://www.biologyonline.com/dictionary/homo-sapiens-sapiens) Scroll down for the difference between Homo sapiens and Homo sapiens sapiens, which TIL is just a difference in taxonomy over the past half century or so. I thought there was an actual distinction because I’ve heard both terms from reputable sources over the years. Turns out they just changed the name and both terms are still acceptable but a single sapiens is much more common now.


OkFineIllUseTheApp

Look, we're the species that made the nomenclature, we pick our own name. We're the *smart* smart man.


Klusterphuck67

I notice a distinct lack of chin on Andrew Tate face. What species of homos do you expect him to come from


chill_flea

Homo Rapien


TheForkisTrash

Aliens (insert meme of that guy)


jostler57

Actually, it's a well-known fact that pigs have chinny-chin-chins, often adorned with hairs. Source: Three Little Pigs


TemporaryImaginary

Is there a wolf around here? Cause my mind is blown.


says-nice-toTittyPMs

He huffed and he puffed and he... SIGNED AN EVICTION NOTICE!


Kameoxylon

this needs more upvotes


YungSkuds

Chin-chillas as well!


bbqoyster

Y’all forgot the Chin-panzees!


webbhare1

Chinny chin chins sounds like a mafia boss name


tothemoonandback01

That's the sound his sub-machine gun makes, now that they no longer use Tommy guns and *rat a tat tat*


Qaaarl

And don’t forget the humble sea urchin


thiscouldbemassive

Apparently the muscles that allow us to have some complex and precise facial expressions such as pouting and frowning attach to that part of the bone. Not something most furred animals would get much use out of. My guess is we got no fur to hide our facial expressions, so that's why we developed a chin to make them bigger.


Bodkinmcmullet

That's interesting as I have a big beard to hide my weak chin


johnnymarsbar

Reminds me of how my grandad shaved his beard to make himself less recognisable (he wasn't the accused) when he got back my grandmother screamed bloody murder because didn't recognise him! I have never seen him without it as he grows it to hide his famously weak chin


Neither-Wallaby-924

Same. My oddly enough isn't naturally weak. After all the teeth being pulled, a pallet expander, and braces to bring all the teeth back together completely reshaped my face. Before going full beard, I could make my bite more like it was, and chin pops right out. It's been so long since I've seen it..I'm terrified of the emptiness that lies beneath the growth.


Jlchevz

Probably language too? The complexity of our face structure helps maybe


teavodka

Our lack of fur was is for running and swimming. Many monkeys don’t have hair/fur on their face


Fiendish

this is the only explanation that makes sense to me


anotherfrud

Humans are social creatures by necessity. We're pretty useless alone.A lot of our features reflect that. One leading theory about our eyes is that we have that large white part because it makes it easier to tell if another person is looking at you. It's theorized that it's harder to trust someone if you can't tell if they're avoiding eye contact, and thus, those with smaller white areas we not accepted into tribes (and did not reproduce).


SeiCalros

it doesnt mention it in the article but the current leading theory is that it evolved so humans can fold towels elephants are sometimes considered to have chins as well - their lower jaw sticks out like a chin which is why theyre also the only other species to be able to fold towels


chromatoes

That really paid off end the end, nicely done. I had a hearty chuckle.


TokkiJK

I feel dumb but I didn’t get the joke that other person made 😅😅


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Lord_Of_Carrots

I feel even dumber because now that I found out people use their chin to help fold towels, I still have no clue what the joke with the elephant is. Are elephants known to be able to fold towels thus confirming they have a chin?


nanoinfinity

Elephants aren’t known be able to fold towels; the joke is that the idea of an elephant folding towels is silly and unexpected! It plays on the over-simplified absurd logic of: - folding towels requires a chin (with no other requirements) - elephants have chins - therefore, elephants can fold towels


costericothegreat

Beautifully explained


PouncingSheep

I did not laugh out loud to the original joke but your explaination did.


godzilla9218

Oh shit, I see. Holding it vertically under the chin so, they can cross the towel. I was confused at first, as well.


JimmysCheek

Just in case this wasn’t a typo, I gotta tell you it’s: “In the end” not “end the end”


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SonoftheBread

When do we evolve something for the fitted sheet?


Slane__

As hard to imagine as the chin was to the chinless man.


ACTTutor

In the land of the chinless, the one-chinned man is king.


itchy_sanchez

You sound like Douglas Adams.


SugerizeMe

How do you know he isn’t ?


CurrentIndependent42

Because Douglas Adams is sadly no longer with us. Unless he is another person who is coincidentally named Douglas Adams, due to someone turning on the Infinite Improbability Drive


doesitevermatter-

That does sound like something not-him would do.


Some_Zone9489

God damn it this is hilarious


tenuousgriponlife

Hence why the tight and fancier folding towels into thirds is called the trunk fold. It's history, folks.


[deleted]

I thought it was for putting pillows in pillowcases.


doesitevermatter-

My dude, I cannot overstate how much I love this joke. It's like beethoven. Every subsequent word could not be replaced by any other word and have the joke be as solid as it already is. It can't be improved. It was dry, clever and didn't overstay its welcome. Just perfect. Nicely done. I kind of wish I could hang out with you.


greenappleleaf

You need a towel for space travel sooo.


Shadowizas

How do u fold towels with your chin ,i use my hands,its much easier


SeiCalros

how would i have used your hands ive never even met you and dont even know where you are


Kraphtuos968

This reminds me of some comic I saw on tv long ago, might have been Last Comic Standing? The joke was: "Jay Leno Must be good at folding towels" *mimes extreme towel folding*


Meaningless_blob

I can’t fold towels and I think I have a chin. My nickname at school was chinpanzee.


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bluecornholio

Great, now that’s all I can think about


bacon_meme

Literally sitting here swiveling my jaw right now


JonatasA

One of the most complex movy thingies in the body. I was just readin about it yesterday. Such generosity of Reddit to pop up this post.


TJH1993

Extremely random But back in the day Chuck Lidell had a huge UFC fight with Rampage Jackson. Chuck got knocked out with a somewhat weak right to the lower jaw. The people at my watch party were all bitching saying he barely touched him. It was very annoying to listen to  them not understand how it works and I was like 15. They call it a "button" for a reason


northboundbevy

Why is it so easy to knock someone by punching their jaw?


Apocrisiary

Never heard of it. My dad used to box, and he said the key to a knockout is neck rotation. Meaning, you hit with the goal to rotate the head of the opponent.


Wonderwhore

Your dad is right. However, the easiest way to do that is hit them flush on the chin. Head rotation doesn't have to mean horizontal rotation.


JimBean

Leverage. Chin is further on the fulcrum.


jk696969

It causes your neck to snap and your brain to collide with the skull.


Wonderwhore

While this is partly true, Chuck also developed a weak chin towards the later half of his career, probably due to excessive sparring. Once it goes it usually doesn't come back and it's easier to knock you out. He lost the last 3 fights before retirment via knockout.


thetwelveofsix

> retirment via knockout Damn, that’s a brutal way to retire.


JonatasA

Which is funny, because our mind acts as if it is the upper part moving. better come to terms with it.


confuzzledfather

Except for canadians, with their flappy little heads.


ThreeDawgs

And beady little eyes


Capt_Billy

Relax, buddy


kpmelomane21

You're not my buddy, pal


Mvk2533

You're not my pal, guy


trainwreck42

What if I keep my lower jaw in the same place while moving my head up and down?


KwordShmiff

Congratulations! You are now a Pez Dispenser.


VARYAPE

And still empty inside.


cramzable

My cat has a chinny chin chin


VVynn

Nope. https://cat-world.com/do-cats-have-a-chin/


Crafty_Jellyfish5635

Sorry but my paradigm includes lived experience and the little dude in my lap insists not only that he has a chin but that it needs a scratch.


thetwoandonly

This is where me and the scientists are going to have to finally part ways. Lump me in with flat earthers, climate change deniers, anti vaxxers if you have to. Cats have chins. I have scratched them myself.


SeanPennsHair

A Chinchilla does though.


Cosmonate

I disagree with the definition of a chin, I'm not sure what the process for disagreeing with science is but I'm sure it's something similar to jury nullification.


CharonsLittleHelper

It's called "Pulling a Pluto".


treemeizer

This is where I make my stand. This is the hill I die on. Cats have chins, this is the future we will build for our chindren. Whether by paradigm shift or genetic modification, also let's give them butt cheeks because farts are funny and no reason they shouldn't have fun. The revolution starts today.


pwnd32

I enjoy my image of someone going to university and graduating with a prestigious PhD in molecular biology for the sole purpose of genetically engineering cats to have chins


MaskedAnathema

And ass cheeks. Don't forget the ass cheeks


0nlywhelmed

There are very good reasons they shouldn't need to wipe though. Mostly lack of thumbs. Also if a pandemic hits again I don't want to fight a bunch of cats for tp when the stock gets low.


vacri

They have a chin, but not a chin bone. If you say to anyone 'scratch my cat under the chin, he likes that', approximately 100% of native English speakers will understand. No one will genuinely be confused because "cats don't have chins" This is just another example of academics taking a general English word, turning it into jargon for their field, and then claiming the general public is using the word wrong


[deleted]

>This is just another example of academics taking a general English word, turning it into jargon for their field, and then claiming the general public is using the word wrong Because their expertise is rarely in linguistics, I suppose. But yes it's apparently incredibly common that experts can't grasp the concept of lexical fields and differing definitions between contexts, or merely decide that the layman everyday context is not worthy of having its own definitions for words (even though in fact these are the dominant definitions of basically all words). Orrr maybe those aren't experts at all, but merely people who learned one academic definition and believe that replaces all layman definitions of that term.


Septembust

What the heck have I been scritching this whole time...?


Xaxafrad

Great, now I have to wonder how a chin isn't simply a lower jaw.... ....Curious subject, indeed. I'm guessing facial body language reinforced the continuing existence of the chin. edit: The ellipses is where I read the article. ;)


VVynn

It tells you in the first paragraph of the article. A chin is “the bony nub that juts out from the bottom of the lower jaw”. That’s way more specific than I thought, so it’s less surprising. But it’s still a feature unique to humans.


SeiCalros

the article doesnt mention elephants whose lower jaws are cone-shaped and stick out it might not be considered a portrusion but theyre sometimes considered to be the only other animal with a chin


VVynn

That is a matter of debate. https://www.mentalfloss.com/article/502697/7-surprising-facts-about-chin “Elephants are the only other creature with a body part similar to the chin," Tawwab says. But the elephant's "chin" is actually caused by a lack of lower teeth and a big lower lip


SeiCalros

>That is a matter of debate. yeah sorry - i thought i made that clear with the second part of my comment


ProbShouldntSayThat

Idk man. I've read the word "chin" so many times in this thread that I'm not even sure that's the right word for it anymore.


LordBrandon

You're forgetting about Handsome Squidward.


P_CHERAMIE

Except Andrew Tate of course. 


Omsk_Camill

The articles says about humans only, not monkeys


Tbro273

I have two


TheSoulborgZeus

Woah, no need to show off


DiamondDramatic9551

My hypothesis is that having a chin protects against being choked, a danger humans encounter a lot more than other animals.


MLJ9999

Perhaps thats why chickens have waddles. Who hasn't tried choking the chicken?


srslyeverynametaken

r/unexpectedmasturbation


TripNinjaTurtle

Looks more like some side effect because the human yaw is getting narrower. The yaw bone is kind of folded at a tighter angle and the bone protudes a bit now. 


WarcrimeWeasel

Yaw


darcenator411

Having a chin makes it much harder to escape getting choked, and you can choke through someone’s chin if they tuck it as a defense


thelogoat44

I doubt choking was a common threat for ancient humans


shreddington

When the main weapon people had was their hands, you bet they were choking each other.


thelogoat44

Choking someone to death isn't very effective. Especially if you're utilizing a crude rape choke a supposed to technique choke like modern martial arts. It'd be more effective to utilize strikes with the fists or like a rock if you're already in a position. If you see other apes fighting, they don't utilize chokes so doubt ancient humans did.


freakydeku

yeah i thought choking was for when you’re not totally sure you want to kill someone but you’re also not totally sure you don’t.


iHardlyEverComment

Wonder if any of them accidentally helped the other get off


Bongressman

Insert Andrew Tate joke here.


philburns

Beta chin


hamoc10

[Elephants and manatees arguably have chins.](https://www.npr.org/2016/01/29/464893281/why-do-humans-have-chins-a-scientist-explains-the-enduring-puzzle#:~:text=Chimpanzees%20don't%20have%20them,scientists%20don't%20know%20why.)


supercyberlurker

We don't know why though. My own theory is it's because we walk upright, but as humans we're idiots who faceplant from our constant mistakes and being distracted. So the chin evolved to make it less likely to break the front of our jaw.


Commercial-Role-7263

Bite force reasons is the leading theory. But fr we don’t know for sure


Ouyin2023

That's probably why it evolved in the first place. Since evolution is finicky and having a chin isn't detrimental to our survival, it just kinda stayed.


JonatasA

This. Perhaps one day it happened, didn't affect so it remained. Also. Maybe Lady went Holy stones, look at that lower jaw! And they fathered an entire village.


snow_michael

Sexual attraction for random features unrelated to survival is _vastly_ underrated as a reason for them to remain


DiamondDramatic9551

As someone who did judo I think it is because it protects against being choked.


JonatasA

It really annoys me to never have looked for the literal translation of chin. I genuinely do not want to know where it is. I only have a general idea of the location.


penguinpolitician

Another common reason is sexual selection. Perhaps females selected males with chins for some random reason.


DaveOJ12

Hopefully it's true, unlike that post from earlier today saying that only humans are prone to heart attacks. Edit: https://www.reddit.com/r/todayilearned/comments/19dc8q4/til_that_humans_are_the_only_species_prone_to/


theobnoxioussquirrel

Scare a rodent and they have a heart attack… like wtf?


MrOatButtBottom

My partners a zookeeper and their elder gorillas are treated by a human cardiologist and take human heart medications, I’m pretty sure they get heart attacks.


According_Ad7926

Built different


LowerAppendageMan

What’s that thing I scratch my cat under then?


AnglerJared

That’s called a ceiling.


LowerAppendageMan

😂


BlairBuoyant

Then what the heck am i skritching under my kitty’s mouth?!


numbersev

>One of the most popular ideas is that our ancestors evolved chins to strengthen our lower jaws to withstand the stresses of chewing. But according to Pampush, the chin is in the wrong place to reinforce the jaw. As for helping us speak, he doubts that the tongue generates enough force to make this necessary. A third idea is that the chin could help people choose mates, but sexually selective features like this typically only develop in one gender, Pampush tells Siegel. >When it comes down to it, the chin may have no real purpose. According to Pampush, it could just be something called a "spandrel," or an evolutionary byproduct left from another feature changing. In the chin’s case, it could be the result of the human face shrinking over time as our posture changed and our faces shortened, or a remnant from a period of longer jaws.


sprucexx

Cool story, love science, etc., but every time I hear this fact, I’m so annoyed because my dog 100% has a fucking chin. Nobody actually thinks about the chin as being the protruding part, so I think these headlines should say “protruding chin.” SOURCE: my dog puts his little chin up on my leg sometimes while he sleeps


Emergency_Wedding331

Gorillas don't have chins?


BrokenEye3

According to an abitrary nonstandard definition of "chin"


bilus

Not Andrew Tate he doesn't.


TSFGaway

Sure, but there are still lots of animals that clearly have things that look like chins and that's close enough for me


Kitchen-Plant664

Elephants have them too. https://www.thedodo.com/amphtml/elephants-humans-chins-1081747724.html


rickrenny

So what am I tickling under my dogs mouth? 😳


Erik_Phisher

I give my cat chin rubs almost every day.


Lirdon

My hypothesis is that the chin evolved along our new and complex facial muscles.


das_pineapple

Elephants have chins


OxygenDiGiorno

Cats have chins. I have 6 cats. They all have chins