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Humans have been puzzled by things like the depths of the ocean and outer space. But one equally mysterious object has been standing right in front of you when you look in the mirror. It’s a human body.

And one TikTok creator named Knowledgesaurus has been stripping away the mystery surrounding it in a series of “How Rare Is Your Body?” videos. From explaining what percentage of people have features like cracked tongue, angled palm crease, or an extra rib, to counting how many people have the ability to write with both their right and left hands, or can make a clover out of their tongue.

The informative and fun videos gained Knowledgesaurus immediate popularity with millions of views and 1.3M followers, so let’s see some of the most interesting body facts that will pump your biology knowledge muscle so you can show it off in the next trivia session.

@knowledgesaurus

How Rare Are You? ##rare ##howrare ##bodyfacts ##mindblown ##fyp ##foryoupage ##greenscreen

♬ original sound - Knowledgesaurus

#1

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 25% of people sneeze when they're exposed to direct sunlight. It's called the photic sneeze reflex.

knowledgesaurus , Mikael Blomkvist Report

#2

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 30% of people can flare their nostrils on command. However that muscle has very little use and is usually weak, so a lot of people can't do it on command.

knowledgesaurus , Pat David Report

#3

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 12% of people have tetrachromacy - the ability to see a lot more colors than the majority of people. They can see about 10 times as many shades and colors as someone with normal vision.

knowledgesaurus , lionstalkscience Report

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Chucky Cheezburger
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Aight dangit, now I wanna know what colors I'm missing out on...Or am I not missing any at all....hmmmmm.

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With 1.4 million followers and 38.5 million likes on TikTok, Knowledgesaurus is the internet’s beloved creator sharing everything interesting—facts, smart observations, and common myths—in lighthearted and fun videos. Bored Panda reached out to Knowledgesaurus to find out more about his personality and how his love for fun facts and dinosaurs won the hearts of the internet.

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#4

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 2% of people naturally have red hair. In order to have a child with this hair color, both parents need to possess the gene, and while redheads make up a tiny part of the population, one study found that 30% of ads have people with red hair in them.

knowledgesaurus , Monstera Report

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Hayley Rodgers
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

My maternal grandma and grandpa were redheads, my mom and sister are redheads, my husband's dad had read hair, my son is a red head. Out of 23 niblings in both families, my son is the only redhead

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#6

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 9% of people can taste the soap taste in cilantro. Cilantro contains the chemical that is also a byproduct of soapmaking.

knowledgesaurus , Michael Lehet Report

“I’m 25 years old and have been an entrepreneur since the age of 19. I found success with that early on and ended up dropping out of college. I made good money, but wasn’t happy.” At that point, the TikTok creator took a risk and decided to “stop all that and start something more fun that I’m interested in and that’s how Knowledgesaurus started. I started this account 1/1/2021 with the goal of growing it and making it my full-time job and within 110 days, I was able to reach 1 million followers, which I’m so thankful for!”

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#7

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 5% of people have amber eyes - golden or coppery with flakes of gold, green or brown. Amber eyes are very common in dogs, bird and fish.

knowledgesaurus , Eric May Report

#8

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Less than 1% of people have this small little hole right on their ear. Some evolutionary biologists claim this used to be a gill on humans.

knowledgesaurus , AdamMichaels784 Report

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#9

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 24% of people can raise one eyebrow, however you can learn to do this as well.

knowledgesaurus , Lee Haywood Report

When asked how he came up with the idea for the "How Rare Are You?" series, Knowledgesaurus said it started after making a bunch of videos and seeing what people enjoyed watching. “I realized that people love to know information about themselves and love statistics. So that’s how the series began.”

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“I always loved knowing random useless information to surprise people with,” the content creator said and added: “I think it all started when I was younger. If someone was talking about something I didn’t know much about, I would go and look up stuff about it and find interesting information about that topic so I could have a better conversation next time.”

#10

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 10% of people have something called Morton's toe. It's when your big toe is shorter than the one next to it. The Statue of Liberty actually has a Morton's toe as well.

knowledgesaurus , Jonnystahl Report

#11

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 33% of people can whistle. Almost everyone has the ability to whistle, it just takes the right techniques.

knowledgesaurus , Sora Shimazaki Report

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Kirsten Kerkhof
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Well, if you can't whistle it's because you didn't eat the crusts of your bread. Or so my mother claimed.

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#12

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 1% of people are ambidextrous - they have no preference for the use of right or left hand.

knowledgesaurus , alamelu24 Report

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#13

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 1% of people need less sleep than the rest of us. These people have Sleeper Syndrome which allows them to go through a sleep cycle faster than an average person.

knowledgesaurus , Andrea Piacquadio Andrea Piacquadio Report

#14

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 35% of people have no wisdom teeth. Wisdom teeth used to serve a purpose but now they no longer do, which is why we take them out so they don't get infected while they're pushing through your gums. If you don't have wisdom teeth, I'm jealous of you.

knowledgesaurus , Anna Shvets Report

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Kirsten Kerkhof
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

35%?? Everyone I know has or had wisdom teeth. Does this occur in certain populations?

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#15

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 83.7% of people can roll their tongue, but only 14.7% of people can make a clover out of their tongue.

knowledgesaurus , TheEnigmaticHaze Report

#16

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 4% of people have Raynaud's syndrome. This is when a part of your body, usually your fingers or toes, starts to turn white when exposed to low temperatures. It's your body's overreaction to cold or distress.

knowledgesaurus Report

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Sleazy Weaver
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I have this! It's incredibly painful & feels like the worst kind of pins & needles imaginable.

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#17

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 10% of people have Darwin's tubercle - the little bump on the outside of your ear. It's believed that people who have this are better at sensing voice tonality.

knowledgesaurus , Dbenbenn Report

#18

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Less than 1% of people in the US have AB-Negative blood. There's also something called Golden blood, which only about 40 people in the world have, and it's completely different than any other blood.

knowledgesaurus , Vegasjon Report

#19

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 16% of people can make a roaring noise in their head using their jaw. They're able to do this because they can control a small muscle in their jaw that deafens chewing, but when it is flexed it makes a roaring noise.

knowledgesaurus , Ono Kosuki Report

#20

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Less than 1% of people have unbreakable bones. This is caused by a mutation in one of the genes that causes the bones to be up to 8 times denser.

knowledgesaurus , Mikael Häggström Report

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#21

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 35% of people can gleek. Only 1% of people can do it on command. Gleeking is when you're spitting saliva from under your tongue and it squirts out.

knowledgesaurus , g0lb0 Report

#22

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Less than 1% of people are born with a white patch of hair. It is called poliosis, which is caused by the lack of pigment called melanin in the hair follicles.

knowledgesaurus , Klaus D. Peter Report

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lunar eclipse
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Two of my maid’s children have this. Brown and white hair. I love their hair.

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#23

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 5% of people have arched fingerprints. Most people have looped and whorled fingerprints.

knowledgesaurus , Noonifer Report

#24

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Less than 1% of people have their heart on the right side of their body. Surprisingly, this doesn't normally come with any negative consequences.

knowledgesaurus , millenniumxl-20 Report

#25

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 25% of people have dimples. You can have either two, or just one. Dimples are also hereditary, so if either of your parents has a dimple, it's more likely you'll have one as well.

knowledgesaurus , Jacob Mejicanos Report

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Friday
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I have two dimples and so does my mum. I hated them as a child, but now I think they are cute

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#26

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 20% of people have a gap between their two front teeth. What normally causes this is a discrepancy between the jaw size and the teeth. A lot of celebrities have this and don't correct it because they think it makes them unique.

knowledgesaurus , Paulblank Report

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Rose the Cook
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Some people believe this is an indication that you will become rich. I have yet to see anyone who has.

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#27

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 2% of people naturally have blonde hair. If you narrow it down just to white people in the United States, that percentage goes up to 5%.

knowledgesaurus , Chris Blonk Report

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Kirsten Kerkhof
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I think it depends on what you classify as blonde. Is it truly white hair or just lighter (like dark blonde)?

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#28

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 10% of people have birthmarks. They're usually oval in shape and come in a coffee type color.

knowledgesaurus , Ben Crowe Report

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Katie Lutesinger
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I used to have a big oval birthmark, on my lower back. But it faded as I got older and eventually disappeared altogether.

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#29

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 70% of people bend their head to the right when kissing. Your brain is the cause for this. The left side of our face shows more emotion so we want to give our partner the more emotive side and we tilt our head to the right.

knowledgesaurus , henri meilhac Report

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Friday
Community Member
3 years ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I’ve always gone left! I don’t know why apart from it just feels more comfortable for me

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#30

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 1% of people have a double row of eyelashes. While this might look like something a lot of you are jealous of, it actually can cause a lot of problems.

knowledgesaurus , lipstickplant Report

#31

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Less than 1% of people have pointy or elf-like ears. It's an abnormality called Stahl's ear, it's usually corrected early in life.

knowledgesaurus , christinev8 Report

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Sleazy Weaver
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Why does it need correcting? Isn't it just a cosmetic difference? Shouldn't it be up to the child to keep it or change it once they're old enough to make the decision, as long as it isn't impacting their hearing?

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#32

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 35% of people have 20/20 vision. 2/3 people cannot see perfectly.

knowledgesaurus , Karolina Grabowska Report

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Doggo Gal
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

My dad has 20\16. It means what the average person could see at 16 ft, my dad could see the same at 20. My brother has 20\150.

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#33

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 25% of people have perfect teeth and never need braces or any orthodontics. 45% of children need braces, but 75% need orthodontic care.

knowledgesaurus Report

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Demi Zwaan
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Need or want? My teeth aren't perfect and if I was an actor or something, I would've 'needed' braces, but health-wise I don't. So do they mean 75% will have health problems if they don't get work done, or just that it looks ugly?

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#34

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 14% of people don't have this muscle - Palmaris Longus. This muscle was developed when our ancestors were big tree climbers. If you want to see if you still have it, pull back your palm on a flat surface, touch your pinky and thumb together and slightly lift them and you should see that ligament pop out.

knowledgesaurus , Couch-scratching-cats Report

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#35

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 6% of people can vibrate and rapidly shake their eyeballs back and forth.

knowledgesaurus , ROTFLOLEB Report

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mcborge1
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I have Nystagmus so my eyes do this wether I want them to or not, and it get's worse if i'm tired.

Yettichild
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I can do this. Happened by accident once when I was really tired, and I found I can do it on purpose whenever I want.

Trulee Stewart
Community Member
2 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I taught myself how to do this when I was a kid. I had a crush on a boy that could do it. Decided to teach myself!

John RING
Community Member
2 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I learned how to do that from my sister when I was a kid. Maybe it's an acquirable skill.

Celtic Pirate Queen
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I can do that. And I usually do when someone has said something incredibly stupid.

Just a girl in a crazy world
Community Member
3 years ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I can do it, I just hate because it feels weird, and I videotaped myself doing it and it was so creepy

Anna Repp
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I've been always told my eyes do this - I cannot control it nor feel it.

Tiffiny
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I can and it was really cool when a kid in my elementary class could do it too because I’d obviously never been able to see it in a mirror. Think high bass in the car and vibrating mirrors. Everything is blurry.

H.L.Lewis
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

That actually is what happens if you have virtigo. Only it's definitely not voluntary!

Armand Lu
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

everyone who read this tried to rapidly shake their eyeballs in front a mirror/selfie cam

James Pointer
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

You can learn this one. It just takes a lot of effort as it's very hard for anyone to actually explain how

Cain Hargreaves
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I knew a kid in elementary school who could do this! I was so envious, omg

Kris “ADHD_Carrier” Dudoich
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I had a good friend in college who could do this and it always freaked me out! So, of course, he did it ALL the time! :)

James F. Wilson Jr.
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I can roll my eyeballs both left and back to the right in complete circles

Sarah
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Gad, I had a 5th-grade teacher whose eyes did this all the time. Freaked me out. Of course, so did the fact that she was a mean old harridan.

Sheridan Somers
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Yup, I can do this one. Blurs my vision when I do though, but that might be due to the fact that I'm short-sighted?

HooowlAtTheMoon
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

OH MY GOSH my brother can do this and we just never knew how, we didn't think it was a rare thing

youshouldseemeinacrown
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

i do that sometimes but most of the time its not on command. i don't know if thats the same thing or not.

Bob Belcher
Community Member
3 years ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Me!!! My wife hates when I do this lol. My daughter can do it.

Kayla J
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I knew someone in elementary who could do this. We always laughed when he'd do it then hit himself on the side of the head to make it "stop".

_𝕔𝕙𝕠𝕔𝕠_𝕝𝕠𝕔𝕠_
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I have a friend who is both double jointed and can do this, its funny lol he uses both to weird people out

Kiki
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

my fake best friend (we are not friends anymore) could do that and would use that to distract people while playing 4-square.we called it jiggly eyes

Chloe *Leah* Pheonix
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Me. Although it randomly happens while I'm reading or writing which is very annoying but it's also a command thing

Linus Nilsson
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I had actually forgotten that I can do this. Outside of the school yard, I've had very little use if this. (Back then I was made a king due to my abilities, and ruled with an iron fist)

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#36

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 10% of people can touch their nose with their tongues. In medicine, this is called the Gorlin sign.

knowledgesaurus , cheshielynx Report

#37

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 20% of people are double jointed. This is thought to be genetic and due to a variation in collagen in your connective tissues.

knowledgesaurus , Rocky Mountain Goat Report

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Lauren W.
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I wish they'd stop calling it double jointed. There are no double joints. Like it says, it's just a variation in connective tissue and joint flexibility.

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#38

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 4% of people are colorblind. Color blindness occurs in 8% of men and 0.5% of women.

knowledgesaurus , Simon Strandgaard Report

#39

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Less than 1% of people can give themselves goosebumps on command. The majority of people get them when they're cold or listening to music, but some can give themselves goosebumps whenever they want to.

knowledgesaurus , Ildar Sagdejev Report

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MustardLemon
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

yup i just have to imgine biting into a popsicle. lol i liteally got goosebumps writing this.

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#42

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 1% of the population can lick their elbow. The people that can do this usually have either a long tongue or a short forearm, or both.

knowledgesaurus , meikomac Report

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Chucky Cheezburger
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Hmmmm...I wonder...:: unsuccessfully trying to lick my elbow...Wife walks in and witnesses me trying::: Wife- What the ever lovin h3ll are you doing? Me as embarrassment and awkwardness set in:: Ummm... nothing hon...nothin at all...

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#43

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 10% of people are left handed. Left handed people tend to live shorter lives.

knowledgesaurus , ThisIsEngineering Report

#44

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 25% of the population snores regularly.

knowledgesaurus , Kampus Production Report

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Giulia
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

i can sleep if outside there are loud construction sounds but god forbid i hear even the smallest snore ever: i can't sleep and i become instantly annoyed ;_;

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#45

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 8.4% of people have a counterclockwise hair whorl on their head, while the majority has a clockwise one.

knowledgesaurus , Noj Han Report

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#46

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 8% of people still have chimp-like feet, that are specifically adapted to climbing trees. This is characterized by a mid-foot arch. If you want to check if you have this, see if you can bend the ball of your foot as well as the region half-way between your heel and the ball of your foot.

knowledgesaurus , Anna Shvets Report

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Demi Zwaan
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I had a hard time understanding this, because that picture is not showing the mentioned bend at all. This is what it looks like: https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRv7izzuQZ8x4BdXJ5PzLGWd-Ogt4KLZ4xgMQ&usqp=CAU

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#47

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 4% of people have an outie belly button. Believe it or not, doctors can't choose if you'll have an innie or an outie belly button, things like the belly button itself and the fat beneath it determine what it will look like.

knowledgesaurus , Kytrez Report

#48

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Less than 1% of people have an extra rib. Most people are born with 24, but some have 25 ribs. The 25th is called a cervical rib.

knowledgesaurus , pxhere Report

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Nicky
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

When I fell skating, an x-ray revealed that I had an extra bone in my forearm. The doctor took med students to see me and my unexpected x-ray!

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#49

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 25% of people have a Hitchhiker's thumb - when the upper part of the thumb can bend 90 degrees backwards. It's caused by a certain gene.

knowledgesaurus , Sudo_Nymn Report

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#50

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series About 20% of people have a pupil that is bigger than the other. This is called anisocoria, it can be a very small, or a very big difference.

knowledgesaurus , Tair1978 Report

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#51

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 22% of people can wiggle one ear, and only 18% can wiggle both. The ability to do so may be inherited, however, it can also be learned with practice.

knowledgesaurus , Karolina Grabowska Report

#52

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Less than 1% of people have perfect pitch - the ability to identify the exact note when you hear it. A lot of people believe you're born like this however some researchers have hypothesized that you can learn this later in life as well.

knowledgesaurus , Charles Parker Report

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Kirsten Kerkhof
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

My youngest brother has it and it's not nearly as much fun as it sounds. He hates live music because musicians and artists may sing ever so slightly off-key or hit just the wrong notes and it's really jarring to him. That said, it made him a pretty good cellist.

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#53

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Less than 1% of people have an uncombable hair syndrome. It's characterized by frizzy hair that can't be combed down. It's normally seen in people that are younger and usually have blonde hair.

knowledgesaurus , buldog4354 Report

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#54

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 10% of adults in the US have never had a cavity in their life, however it's estimated that 1 in 4 adults have cavities that are untreated.

knowledgesaurus , Andrea Piacquadio Report

#55

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 7% of people can tickle themselves. Usually your brain does not let you tickle yourself, but some experts believe that if you push your tongue up against the roof of your mouth you can actually tickle yourself, because you're not used to that sensation.

knowledgesaurus , cottonbro Report

#56

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 6% of people have a cleft chin - a dimple in the middle of your chin. It is usually genetic, you can actually add or remove one with surgery.

knowledgesaurus , paul stumpr Report

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Friday
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

It makes me sad that some people want to erase their uniqueness with surgery

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#57

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 1.5% of people have a single palm crease. This is often found in males and is a hereditary trait.

knowledgesaurus , chrishill95 Report

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Sleazy Weaver
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I have this as well! I was very amused when I read a palm-reading book & it said to "beware of he with the single angry slash across his palm" with a drawing of my hand!

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#58

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series Only 1% of people clasp their hands this way.

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#59

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series 5% of people have a cracked tongue. It develops in birth or childhood, and is associated with Down syndrome and malnutrition.

knowledgesaurus , Scotty_1 Report

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Foxxy (The Original)
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3 years ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I have had fissured tongue since a child as well as geographical tongue and I can guarantee you mine is not caused by malnutrition or down syndrome.

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#60

Person Invites You To Learn 'How Rare Is Your Body?' In His Viral Series About half of the population can wiggle their toes individually. The big toe and little toe have individual muscles so it's easier to move them, but the middle toes are all controlled by one set of muscles so those are a lot more difficult to move.

knowledgesaurus , Frank Vessia Report