You could have a secret twin (but not the way you think) - Kayla Mandel Sheets

[@TEDEd]

Download a free audiobook version of Brit Bennett’s bestselling novel, “The Vanishing Half” at www.audible.com/ted-ed and follow the story of separated identical twins Stella and Desiree as they grapple with how their past decisions have shaped their identities.

[@manke2011]

dam thats crazy but what the dog doing?

[@dollpartsgirl]

@@manke2011 no one knows

[@Deuxice]

@@dollpartsgirl oh I know, I know!

[@cgguto]

@@Deuxice i realy need your help sir, now please awser my question, WHA DA DOG DOIN??

[@gilangp2011]

So many I learned in short video.

[@jeanzhao3661]

That story of a mother's liver growing back from her baby's stem cells is the most wholesome thing I've every seen. Returning the gift of life.

[@nanaouzumaki6044]

i know. that story fascinated me too. I believe in supernatural heals and miracles because it is the undiscovered nature itself.

[@kellydalstok8900]

@@nanaouzumaki6044 Believing in the supernatural is just silly, as there is zero evidence for it.

[@aleksitjvladica.]

Is "wholesome" a rude word* or nice one?

[@areyouallergictoawesomenes613]

@@aleksitjvladica. a very nice word

[@echoesman3439]

@@aleksitjvladica. I don't think I've ever seen "wholesome" rudely so yes, it is in fact a nice word. It's similar in meaning to what we would call "heartwarming" and (at least how I have seen and used it) is used to somehow convey that a situation gives a feeling of "emotional fullness" or something similar. At least that's how most of the stuff I have and have seen called "wholesome" made me feel.

[@nevereverr]

“Babe, I didn’t cheat! I’m just a chimera!”

[@TEDEd]

"This week on Maury!"

[@patricksarama4963]

Nice

[@broryku]

BS

[@MOLLY-006]

🤣

[@aryatejc8067]

Lol

[@isabelberg3171]

My grandmother has that. She has 2 different eye colours, a leg length discremency, and has 2 different shades of skin with a distinct line.

[@idmeghaburnwal]

Woah ..

[@Ruthavecflute]

Facinating! Has she ever ha any kind of genetic testiing done?

[@isabelberg3171]

I'm not quite sure, yet I'll ask next time I have a chance.

[@mallucommenter4071]

Great

[@YellRundum]

Please update us on this! Id love to know more about this

[@Tchaikovsky391]

"So, who's your mom?" *"My mom was never born."*

[@sebreb]

Yeah thats...weird to hear

[@LiaGag314]

@@sebreb hear*

[@mad5161]

LMAO😂 But technically your mom would live as a part of the mom who gave birth to you...

[@Hellokemon]

​@@LiaGag314bruh

[@AlbertoMenezesMusic]

"When my mother was pregnant with me, they did an ultrasound and found she was having twins. When they did another ultrasound a few weeks later, they discovered that I had RESORBED the other fetus. Do I regret this? No. I believe his tissue made me stronger. I now have the strength of a grown man AND a little baby." SCHRUTE, Dwight. It all makes sense now lol

[@AlbertoMenezesMusic]

@-Breeze- "fortunately my feelings regenerate at twice the speed of a normal man's" SCHRUTE, Dwight

[@goodnightmyprince6734]

Are you a superhero?

[@litchtheshinigami8936]

I mean my mother had a miscarriage when she was pregnant with me.. i was still there but my twin was out of there..

[@joannemaillet8843]

My son did that with his sibling!

[@TheSmiaf]

@@litchtheshinigami8936 you bully 😅

[@brittmichels2]

The mother can in this way get to know her unborn sister in some way, by observing her own children. Sad but beautiful.

[@justjailibee]

genetics… kinda feels like magic :0

[@Red_MOON187]

@@justjailibee Well, they are cool and mysterious.

[@justjailibee]

@@Red_MOON187 it’s magic that can be explained by science haha

[@kanyebreast6072]

But how do we know which traits are her sisters, and which traits are just the child's own characteristics?

[@kantanacullen9992]

*GHOST TWINS*

[@TheOneWhoGetLeftBehind_Pluto]

When you realise: you are your twin, but you two are together

[@Kenny2100vn]

Are you one or two? Philosphical questions 🧐

[@enderredacted112]

@@Kenny2100vn there's an interesting experiment in patients whose right and left brain connections are severed. it is found that the right brain can act independently from the left, and at times patients describe their left sides disagreeing with their right. [like throwing an object out of their right side's hand] basically we are actually two, but the right brain can't express itself since it can't control speech its kinda weird to think about kzbin.info/www/bejne/rZe8k5qapJ2YY5o ah and right here's the video explaining it

[@GuyThatWearsG12Suit]

I art thou. Thou art I.

[@022107]

Two halves of the same whole.

[@skenderbegshala3247]

@@Kenny2100vn you are two in one

[@bazookallamaproductions5280]

"you are NOT the father" crowds scream, dudes life ruined (just ended up being chimerism and maurys test wasnt able to pick it up)

[@shobhitsamuelekka4128]

😂 i was going to write about the same thing

[@adirbarak5256]

@@shobhitsamuelekka4128 same here

[@kiriki4558]

Emotionaly damaged maybe, but not ruined.

[@lalakuma9]

Maury has blood on his hands SMH

[@blazingfire7517]

“You are the uncle”

[@Erika96]

I had a fraternal twin who sadly passed away in the womb. I always knew I have absorbed some of them as a fetus because I have an extra tooth, but I didn't know that it could be this severe, I could have whole organs with their DNA.. crazy

[@sriku1000]

Can music save your mortal soul kzbin.info/www/bejne/Y6bIqZ2vadiKq5Y. Great watch!

[@Ya_boi_jasper]

My little brother, he absorbed his twin and gained a chromosome and lost chromosomes in some other things. It caused his organs to not fully develop. He was missing a lot of the vital organs. He’s organs were also flipped. He didn’t make it because he was missing those vital organs. But it was astonishing how much time we had with him. He also had extra fingers and toes. My mom got little plasters made of his little arms and legs and he had like an extra thumb and pinky toe 😆

[@abu-karz]

You ate Eric, your bro

[@theremix6664]

My second child is a chimera. When I was pregnant with her, I had a ghost sac or she had a ghost twin. And then it disappeared. The two sacs became one. My oldest and my youngest have a blood disorder. She doesn’t … she’s the only one.

[@sandhyakhonde5237]

"You could have a secret twin" My thoughts at 3 AM:

[@neptuneseye7832]

"That twin could've cured cancer, made world peace, make our parents happier"

[@NITHINNNEYYAN]

its not yet 3 AM ,its just 10 PM, lier girl........

[@sinamahboob379]

It,s 20:45

[@jeyoungryou3585]

@@NITHINNNEYYAN She could be in a different timezone.

[@NITHINNNEYYAN]

@@jeyoungryou3585 idts.

[@grannyscookies5720]

"You could have a secret twin" me to my twin sister: gurl, i think we're triplets-

[@gameblock9853]

Quintuplets would be really cool.

[@mee2556]

@@gameblock9853 What if Quintuple is actually supposed to be Decuple?!? (Decuple is 10 twin)

[@DefinitelyNotHidan]

@@mee2556 Oh my Jashin, how many word are there for twins

[@mee2556]

@@DefinitelyNotHidan I only know 10 for now let me search it up, The central African country of Benin has the highest national average of twinning, with a whopping 27.9 twins per 1,000 births, the researchers added. Don't know if this is true but it's from Google. (this is how many twins that was birthed, idk how many possible twin at the same time) (my English today is terrible)

[@churro6372]

@@mee2556 dont think thats what they were asking

[@rushilpatel7418]

I doubt we can ever repay the knowledge this channel has given to the world Edit: thanks for the likes people!

[@wiseferret4745]

Don't repay. Pay it forward.

[@NITHINNNEYYAN]

ok i will give my no, you pay me please........

[@sumvivus6199]

True. I feel so educated after watching these, even tho I'm gonna fogret about this like... 2 days later

[@flameify8285]

@Samarth Mali can you name some. I want more content like this

[@div_100]

@@flameify8285 CrashCourse it is for more "specific" stuff but it got da spirit- I learnt a lot of computer science stuff from there

[@mollygriffin5474]

Imagine having 2 kids without being born.

[@TayWoode]

You can’t imagine it coz you wouldn’t have been born to know about it 😉

[@FanficDayDream]

​@@TayWoode haha then imagine being born when your biological mom was never born

[@CCI320]

Its proof that life begins at conception. The unborn twin was a full human being with a unique genetic code separate from the twin even though she never developed to term.

[@sworishina]

It's kind of beautiful to think of a baby's cells healing their mother many years later.

[@Bakasta170]

It's mind blowing that even though her sister does not exist but has 2 biological children 🤯🤯🤯🤯

[@panda_invention1810]

😭

[@WatchMeDoStuff]

@@priyanshusharma-grimhog lmao exactly what I thought

[@vaishnavij5578]

eren yeager?????????

[@samar7337]

@@vaishnavij5578 yess

[@vaishnavij5578]

@@samar7337 tatakae

[@inceleni]

stories like this really make me feel like I carry a whole universe within me

[@SyedHanzalaAlam]

Indeed you do

[@sophiemarie6585]

i love this comment so much

[@laur3321]

Ok super random, but reading your comment gave me déjà vu, like your picture and everything it was weird😂

[@flames4856]

@@laur3321 Same !!!

[@dandywaysofliving]

You're made of things that came from stars compounded many times over. You experience light that will one day consume the earth. . There is knowledge in light and within you that only you can understand. . It's like deja vu You've seen yourself somewhere you don't know when or where until it snaps and it's gone. . Light particles follow a rhythm/pattern until observed too closely. . With that logic. If u don't pay too much attention you can set of neurons in a way that seems like a premonition. You are here and then, but are u now? Or there.

[@effiethefey]

This is insane! Nature really is fascinating! 😲

[@ati832]

nature no nature is not real it dont exist try god instead.

[@python3389]

@@ati832 ikr like how tf does nature do that if it's not even alive

[@Luffy_wastaken]

Is nature fascinating? _naturally._

[@ForAnAngel]

@@python3389 Things happen by chance.

[@ForAnAngel]

@@ati832 Why would god make a chimera?

[@Free2_express08]

Mind-blowing. Can you imagine how many times in history this has happened without us knowing? How many family trees are in fact inaccurate?

[@lightyagami3492]

For sure. It's crossed my mind because I do genealogy.

[@princesse.561]

To be fair, the kids still share the same set of grandparents from the parent who have chimerism.

[@catluvr_73]

so happy for the lady whose liver started regenerating, it's like her unborn baby left her one last token of love 😭💕💌

[@GurunathHirve]

We don't know whether that baby was born or not.

[@katherineknapp4370]

I agree 😊

[@bhagyshreetambe5060]

Stem cell form baby regenerating the liver of mother seemed like a child rescuing mother in trouble, really wholesome ☺️

[@Tvde1]

Bro it's cells

[@bhagyshreetambe5060]

@@Tvde1 Stem cells are responsible for the formation of each and every single cell in the baby

[@NoirRaven]

There's also stories of people regenerating cut off fingers using stem cells from fetuses. It's literally a miracle cure for almost anything.

[@sabitrapathak3351]

Went looking for this comment haha, found it!

[@lynnd.d1695]

*the parasite is keeping its host alive*

[@inzomniacZz]

Imagine being an unknown chimera and ending up on Maury show. "You are NOT the father! You're an uncle tho"

[@just-A.randomdude]

"uncle?? But I'm an only child"

[@Tokuijin]

Actually, it makes you wonder how many of those might've been the case

[@ramenomirice2767]

@@Tokuijin not much . Males can easily take the DNA test .And even if the child is their many males just run away

[@weeniehutjr9977]

@@ramenomirice2767 what are you talking about

[@prdaher]

@@ramenomirice2767 What you just said doesn't even make sense

[@ludoviajante]

Any day Ted-Ed posts a video is a good day. Much love from Brazil!

[@kamikkaze5164]

The best day IS the day Ted-ed and Ludoviajante both posts videos Love from Brazil ;D

[@its_not_lux]

@@kamikkaze5164 We get it, you can write grammatically correct sentences. Get off your high horse ;D

[@HelgaCavoli]

@@its_not_lux Read it again, it wasn't a correction, it was a compliment.

[@Pock4855]

Ludo again

[@its_not_lux]

@@HelgaCavoli looks like someone's gonna get laid in college.

[@thaliagrace6631]

Imagine what the mother would have felt, giving birth to two of her sister's kids and then realizing she is the sister herself.

[@ClumsyCloud]

I find this extremely interesting because I was a triplet and I absorbed my triplets. I always wondered what would happen if they were born.

[@mig_mikoyan]

That's wild. You're 3x human. You're probably like 18 feet tall then

[@dunceandco]

the power you hold

[@Fleta_Maughner]

Bruh how powerful are you

[@denvilli9063]

YOUR 3 HUMANS ONE

[@denvilli9063]

its like winning 3 prizes from the claw machine in one try

“The genes that make us who we are” sounds like a Levi’s commercial.

[@mariaperez-rz8eg]

🤣🤣🤣

[@truecatholic8692]

The unique ones given to a baby at conception.

[@codiceblu5566]

Most underrated comment! 🤣🤣

[@vighneshchavan9226]

Seems legit

[@yurimessiah]

Lmao 💀💀

[@sofoboachie5221]

Holy Cow there’s just so much we don’t know about ourselves even after all these years of technological advances

[@sofoboachie5221]

@A curious Jaggi Okay Einstein

[@kolawolegbolahan935]

My thoughts as well... what we dont know is a whole universe of knowledge

[@kalv7444]

@A curious Jaggi we don’t care

[@akshatmishra8537]

We cant study billions of years of evolution in mere hundreds of years

[@nenoneno4332]

@@sofoboachie5221 "And mankind have not been given of knowledge except a little." Qura'an

[@dinmir865]

Biology is so interesting, i really love it.

[@xionnation9932]

Same 😌

[@shimpiyaa]

yes

[@ornevaeh9375]

kzbin.info/www/bejne/bJ_EdplrrKlggqs

[@mrsprite399]

Overall science is very very interesting

[@holysong2099]

@@ornevaeh9375 bruh

[@naobwv3633]

Gorgeous animation, good job to whoever was in charge of that !

[@sabinajoh]

How would you determine which genome is actually yours? If the separate genomes can be spread throughout the body in different places which would you say is the twin?

[@ClumsyCloud]

I was wondering the same thing, since wouldn’t there be an even amount of each?

[@cabji]

@@ClumsyCloud i think the video said cell levels can differ from organ to organ. some organs may only have 1 type of genome, but another organ can have a mixture. maybe they can test and identify which genome is most common and class that as "your" genome in these cases?

[@samanthac.349]

I say two genomes, but still one person. They can’t be separated without killing the person.

[@zachkhoo7134]

“I believe his tissues has made me stronger. I now have the strength of a grown man and a little baby.” -Dwight Schrute

[@graypaint]

omfg I totally forgot that Dwight claimed he absorbed his twin's cells or something (purportedly) outrageous like that when it was in fact.... the truth..... 👀

[@blackmber]

At 2:00 I realized we underestimated the strength of a little baby Edit: Also, didn't he get a DNA test for his son, which said he wasn't the father?

[@bottomless_pit]

The story of the mother's liver regenarating really moved me since I lost my mom to liver failure due to cancer ,wish that knowledge could be used to help people

[@alkasaket379]

What if my mom is my aunt? *becomes paranoid for the rest of my life* Thanks Ted-ed!

[@zaytaz9331]

Lol

[@itsDhiran]

And she has no sister...lol...

[@SyedHanzalaAlam]

😂😂😂

[@Amit_Pirate]

LoL

[@Amit_Pirate]

@@alkasaket379 just kidding

[@molybdaen11]

Thats so cool. Imagine your liver is failing and your long born child is like: "I will never let you die, mother" and heals you all alone.

[@natachalola8661]

It can be mentally complicated to raise you’re unborn sister’s child… It can also be complicated to live with the fact that you would have a twin! Your life would be sooo different 😶

[@ripmorld9909]

Injecting your own baby’s stem cell to regenerate organ sounds like a technology with huge potentials .

[@exp-io853]

😳😳😳 im excited fr that to actually happen..but id probably be dead b that time

[@yagomizuma2275]

@@exp-io853 well it exist according to my science teacher, and can be obtained by the umbilical cord

[@exp-io853]

@@yagomizuma2275 biology has so much in it..its crazy than i thought 😭

[@left4twenty]

Seems like its mostly effective during pregnancy. Normally when random cells show up in your body, your immune system destroys them. The immune system of pregnant women is compromised specifically so that their immune system doesn't destroy the fetal cells growing in them. Once in post-partum though, the immune system gets back to normal, and destroys any foreign cells left behind *usually*. The instances of them surviving are rare, and the liver is a bit of a special organ in that it naturally can regenerate anyways. It's certainly promising, but there's alot to consider risk wise. What if when you go off the immunesuppressants, some number of peoples bodies recognize the foreign cells and destroy their shiny new organ

[@hahalord7294]

@@left4twenty I'm not an expert but can we modify something in our body to prevent them from destroying the stem cells?

[@AveryTalksAboutStuff]

By the title alone I think a new fear is unlocked 😅

[@mrjoe332]

Gaining a brand new fear is when you know found a great science video

[@NITHINNNEYYAN]

dont judge book by cover.......

[@RixMorales]

Your ghost twin trying to take over your body 👻

[@salamanderred8148]

Well, yes. As TED ED Watcher, now I am confused. My wife and child to be born, during the first months, had another little heart beat and another little "baby room?" I dunno the medical term, one bigger with an obvious heart beat detected, the smaller one has vague heartbeat. The next 2 weeks we check, there is only one heart beat and one "baby room". Is my baby to born going to be like this too?

[@mrjoe332]

@@salamanderred8148 oh well. Now at least you know what might have happened. Also I hope everything goes smoothly and as easily as possible for you and for them. And lot of happiness in the future

[@cfromnowhere]

House MD has an episode about chimerism. At the time when the series was shot, chimerism was considered very rare.

[@ongatm]

I was think about it too! That episode in which a child sees aliens because of chimerism it is one of my favourite episode of the serie

[@lordrefrigeratorintercoole288]

well it is not so rare actualy

[@antiawarenessawarenessclub]

@@ongatm A child sees- HUH? I THOUGHT HOUSE WAS A MEDICAL SHOW?

[@oskarhenriksen]

@@antiawarenessawarenessclub [spoiler alert] It's a type of hallucination or similar. Edit: The aliens, not that House MD is a medical show

[@oskarhenriksen]

I was thinking about that episode too, but I can't remember why it caused him to see aliens

[@isha7079]

Videos like these is the reason why I don't shut up aboth things I learn about here ...it's sooo mind blowing

[@guillaumem9953]

I also heard about this story. Genetics is just incredible! I’m twin, he/she just died in the first stades of the pregnancy :/

[@Gigawolf1]

TED-ED: "You could have a secret twin!" Me: "Is this about Chimerism?" TED-ED: "But not the way you think!" Me: "Guess not then"

[@imnotadogbutihaveflower-ph6309]

@Kreeper yeah I heard about this too

[@somebody867]

@Kreeper I am a science student and I absolutely love it but bruh common stop keeping such thoughts that the ones who know science are always smart..... it's kinda non sense not to be rude...

[@somerandomperson3970]

@@somebody867 Betcha he's a Discord admin

[@aceanimations3214]

I didn't know the name, but guessed it was something like this. I guess I get half a point.

[@FibonacciPasta]

I just wanna say, I really love the animation!

[@carlrunefelt3304]

Thanks for commenting, Get my assistant directly for more guidance on crypto earnings ..𝙫𝙞𝙖 𝙬𝙝𝙖𝙩’𝙨𝙖𝙥𝙥

[@carlrunefelt3304]

±𝟏𝟓𝟎𝟐𝟔𝟏𝟕𝟑𝟕𝟖𝟓

[@MCPT59]

The animation and music for this one is especially stellar. Excellent job and fascinating info

[@jjelliott2590]

This is amazing. I got chills after it was revealed.

[@concretekebab]

This art style is absolutely amazing-

[@melontusk7358]

I'm surprised Karen didn't ask to see the manager of genomes.

[@annabellewen6142]

Jesus christ!

[@shamikh5301]

Lmaooo

[@imnotadogbutihaveflower-ph6309]

So true

[@mrjoe332]

The animations are always amazing, but this is incredibly charming.

[@tashibalampkin8555]

I had to watch this video multiple time because the story, animation, and music are all experiences. Great experiences. 1:01 is my favorite part. The split of the person and the music is just an amazing pair.

[@Akui2023]

"sweetie i dont cheat to your father its my twin" child: but mommy your twin was never born mom:😱😱

[@zukoshonor4557]

Everything is fine untill you found out your mom had a twin sister who was born.

[@waterunderthebridge7950]

I’ve heard of fetal cells regenerating maternal tissue before. It would be such a useful treatment for so many degenerative diseases! Sadly, toti-/pluri-/oligopotent cells will much more frequently cause tumorous growths rather than target and regenerate damaged tissue as we currently do not have a sufficiently in depth grasp of all the signaling and differentiation going on as well as just the general biology of “stem cells”

[@meditatio2668]

Wow, having an unborn person's child must be tremendous. Nature always surprises us.

[@katieyu9374]

The amount of chills I got from the beginning omg, this is fascinating, thank you for teaching us all about chimerism! ❤️

[@ohrats731]

Makes me wonder if people I know who look very different from their parents have a parent with chimerism. Fascinating!

[@hritikvaishnav603]

Great. Just 2 days ago I was watching a documentary about hand transplants which got me wondering, what happens to a person's DNA when they get an organ from another person. And KZbin recommended me the answer today.

[@wasimshaikh1665]

This is amazing. We think we know everything about ourselves yet there are mysteries yet to be explored. Thank you Ted, this was a great video.

[@yamenk1280]

I really need to do further studies on this. I always wondered why I am slightly dual toned, like almost my left half is just so subtly a different shade of skin. I'm also slightly asymmetrical, and recently I was wondering about whether I'd absorbed a twin during my development. In fact, I asked my mother "Was I a twin during the first terms of the pregnancy?" And considering she didn't know anything about a twin, I might need to do some investigation! :D

[@kashutosh9132]

So are you twin?

[@swatipragyanraj3948]

I am learning biology everyday with some new facts . It's really unpredictable. Thanks for the extra knowledge ❤️

[@NynNahh]

I just want to say, this video is BEAUTIFULLY animated. I absolutely loved it.

[@thunderlol99]

Biology is a world in itself. This is what fascinates me to become a researcher in the future.

[@ohno3729]

That is so cool. Also the way the animations flowed in this video was enchanting

[@adelynemisha3724]

The animation is superb ❤️

[@himanshunandi4590]

That's the beauty of science and mother nature.

[@RickusDomesticus]

So that's why I had an imaginary friend back in my childhood. I haven't even able able to read back then, and suddenly spitted out a person name which my parent don't even recognize, and even playin with him.. damn I wish I could remember more about my childhood

[@T.H.E.O.R.Y.]

That is so cool and amazing. I hope Ms. Keegan got the help she needed, though. Astounding animation as always; really great stuff.

[@korachoi1976]

One of the most interesting topics I've ever seen on TED Also, love the animation!!

[@outside8312]

Wait what!? I absorbed my twin... So my kids could actually be my nephews and nieces!?

[@zennal2021]

Yes, they could be your nephews or nieces

[@FELONIOUSBOLUSS]

YOU MURDERER!! POLIIIICEEE!!!

[@ornevaeh9375]

kzbin.info/www/bejne/bJ_EdplrrKlggqs

[@yargg]

I've never heard of me having a twin but I do have heterochromia... Hmm.

[@doodlebloom_]

okay but this animation style is genuinely beautiful? i dont know how to describe it it's just so . flowy and almost ethereal in a way. its mesmerizing

[@analogger3058]

Everybody’s talking about chimerism, I’m just loving the music. I wish I could listen to it by itself

[@tripletoruses]

Ted-ed: "(but not the way you think)" me: oh, so not chimerism? Ted-ed: "chimerism" ... 💨

[@prettyvacant3605]

My twin was stillborn so iimmediately thought "hey this relates to me" Only to find a whole lotta of scientific mumbo jumbo that is well over my head 😐

[@Hoozelfitz]

This was a fascinating watch. I was truly in awe at such a neat find, but the animation wonderfully pulled everything together like an extra gift to the viewers.

[@aidanrogers4438]

‘As many of you know, I ate my twin sister in utero. So on my birthday, I try to remember I'm a winner. This one's for you, Connie.’ - Señor Chang

[@RaiNBOwXP0p]

why is nobody talking about how beautiful these visuals are?

[@maxxam3590]

They are pretty neat.

[@Sammy052]

The possibility of this makes me think I'm not alone. I was never alone. Thank you for sharing this info

[@aymil1034]

let's take a moment to appreciate the beautiful animation❤️

[@melp3736]

The animation is absolutely stunning!! Especially love the animation of the progression from zygote to foetus!

[@francesleones4973]

This is fascinating and it made me think of what my Mom told me about my own twin who never made it to term. Whenever I didn't finish a meal growing up, our housekeeper used to say that I was saving the food for my twin.

[@DerpxGames]

This video and editing is godly

[@xXx_Regulus_xXx]

1:33 show this to that loathsome person in your life who calls unborn children "parasites." A parasite doesn't rejuvenate its host's failing organs.

[@miguelgibbs]

I hate when people do that

[@marbleb33s]

By definition a fetus IS parasitic in nature. It can't survive outside of the host, it needs the host nutrients and it will die when the host dies. Simple as that. Facts over feelings ;). A clump of cells will never be as important as the person who can carry those cells to term.

[@jonelparilla7972]

We can all agree that this is fascinating, but the animation is also superb. Kudos Ted-Ed!

[@goomee]

The animation in this video was beautiful. Amazing job Murilo Jardim and Luisa Copetti

[@ihopemorepeace1]

I was a little spooked when I saw this because my twin wasn't born. I used to tell everyone when I was a kid but it was dismissed as a joke and I only remembered it recently. My therapist said it was actually common and that sometimes the twin who was born mourns the absence of the other, which is my case. I thought this video was going to talk about that and felt a little scared but now I see it mentioned this in a more scientific take. It was interesting to know. I hope I have something of my sibling to carry along with me, even if it's a single cell.

[@jaygibby4210]

Very simply put. Thanks

[@kristythomas2919]

My husband has three different colors of hair... Mostly brown hair, but also some blonde and red. Blink, blink. When I was pregnant with my son, I could have sworn there was a twin... Now that I know that so many pregnancies start of as twins, maybe I was right. I had no idea!

[@aeltayeb]

Mind blowing 🤯 Animation is spot on well done!

[@simranmalhotra7364]

It's amazing to think this way- a female who was never born, has her own children, genetically.... whoa... That would mean scientifically you can have children WITHOUT even being born!!!!

[@throughtheblackholetotheli6147]

Uhm,but thinking about,we are multicellular....this means we are just a big net of cells....so...tendentially,she did born,exactly 'cause her scattered cells are living inside the net we call "her born sister",technically they are both born,simply one of the two,got a bigger number of cells in the net of the organism.

[@b_uppy]

Learned of the this while researching tumors. Wonder why the tumors connection's not mentioned here. It's fascinating.

[@EBThisThat]

I could possibly be a chimera because I absorbed my twin in utero. Mom didn't tell me until I was 13 but I always felt like I was missing someone and felt so terribly alone even before I understood what loneliness was.

[@MosukaDreamer]

If it helps, they're always with you.

[@pillow3588]

It’s so cool because you can look at one of her sons and they look like what her sister could’ve looked like.

[@themariannelm]

There’s an episode on House called Cane and Abel that covers this - super fascinating!

[@boy638]

Imagine one day we can just "activate" stem cells within ourselves to repair damaged cells.

[@cholello3556]

I’m mostly just confused by why they assume which DNA belongs to who. If they are both present in her body, despite having a fraternal twin that she absorbed, how can you ever know who’s whose? For all we know, the two sons could be biologically hers and the one isn’t.

[@LordLemmysLabs]

Thumbnail: "Do you have a ghost twin?" Me: "How'd they know I had a stillborn twin?"

[@quincy9908]

This can mean a lot of things. She is a aunt and a mother to her kids. She is partial mother. Since those genes are hers. They only exist with her and are her cells. What quantifies her? I say she has 2 different genomes. Both belong to her and both was born with her.

[@tonywebert8326]

Thought Experiment: Chimerism occurs when a person has 2 genomes. This can happen when a *fraternal* twin is absorbed by the other in the womb. *Identical* twins have the same DNA (hence identical). Could it be possible for an identical twin to absorb the other in the womb? They would carry their twin's DNA, but they would only have 1 genome.

[@Danceofmasks]

Well, identical twins happen in the first place because one embryo split into two. It then comes down to how far along in an embryo's development before you think it's a person.

[@Bloss3m22]

3:48 is the power house of the cell

[@Denuhm]

I had the same experience as Keegan's sons, I'm my 'aunts' son ^^' we found this out after my mother had a hysterectomy and they found part of the 'twin'. We later confirmed it through 23&me x)

[@chelseazaydaraensehon1198]

😱🤯 that’s crazy! If I take the 23&me test will I be able to find out if I have this?

[@Denuhm]

@@chelseazaydaraensehon1198 It's extremely rare to my understanding that a twin like my mother's affects the reproductive system specifically, we only knew what was going on because of my mother's underlying health issues and the 'twin' being found and removed and then later when our family genetic tests came back a little wonky and talking to a geneticist to confirm. You will only have this outcome IF your mother had a twin that died in utero at a later stage and it became incoprporated with her body and reproductive system to some degree.

[@OkyshoNath]

Now all I can remember about is the Maury show with all the "you are NOT the father"

[@marshie5027]

This is mind blowing but the animation tho. I'm mesmerized!