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One great thing about our planet and the Universe is that we'll probably never run out of interesting things to learn about them. For example, did you know that humans invented steam trains before they ever thought of a bicycle? The animal kingdom has even more fascinating secrets, like the fact that octopuses have three hearts and donut-shaped brains.

When you learn something like this, your brain can't help but invite the thought, "How is this even possible?" Well, prepare to be stunned, because Bored Panda is bringing you more interesting bits of knowledge via a recent online thread where one netizen asked fellow Internet users to share the most surprising facts they know, writing, "What's a fact you learned that still shocks you?"

#1

Woman applying sunscreen under clear blue sky for shocking facts When you get a sunburn, the UV radiation doesn't actually scorch or "cook" your skin cells. It mutates and damages their DNA structure so severely that the cells essentially commit collective self destruction to prevent themselves from turning into cancer.

elincuteone , ohlamour studio Report

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    #2

    Damaged buildings and rubble showing shocking facts destruction The 2011 9.1 earthquake that hit Japan sped up the Earth's rotation by 10 milliseconds, threw the Earth's axis off by 6.5 inches, and stretched Japan's big island eastwards by 7-10ft.

    detectiveriggsboson , Emad El Byed Report

    #3

    Large fish swimming underwater among aquatic plants shocking facts Hiccups are an evolutionary memory from when we were fish. Your body basically tries to breathe with gills that arent there. 


    You can make a hiccup go away simply by reminding yourself that you are in fact not a fish. 


    I havent had a hiccup in years. Whenever i see someone having one i tell them this and it always works, and it just kinda still blows my mind every time. .

    Elddif_Dog , Unsplash+ Community Report

    UKGrandad
    Community Member
    19 minutes ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    There is absolutely no evidence of this. The truth is that nobody knows why we hiccup.

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    #4

    Collection of vintage photos representing favorite shocking facts and history moments That your brain can basically rewrite memories over time and you can end up “remembering” things slightly wrong without realizing it.

    Outside_Good2141 , Jon Tyson Report

    #5

    Bright sun close-up representing shocking facts about the sun The Sun accounts for about 99.86% of all the mass in the system. The remaining 0.14% is distributed across all the planets, moons, OP's mom, and debris.

    detectiveriggsboson , Planet Volumes Report

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    #6

    Person reading a book outdoors sharing shocking facts A third of the US adult population read below a 6th grade level or not at all.

    theagonyofthefeet , ohlamour studio Report

    Nathaniel He/Him Cis-Het
    Community Member
    Premium
    1 hour ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I could not imagine not being able to read. It is one of the most enjoyable pleasures you can have on your own. I recently read Hermann Hesse Siddhartha and it gently blew my mind as to what books can be. Between that and Albert Camus The Stranger, it felt like I have discovered a new genre of fiction.

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    #7

    Scattered playing cards with aces visible for shocking facts It is extremely likely, for all practical purposes, that no two thoroughly randomized 52-card decks have ever been shuffled into the same order

    I can't wrap my head around it. The number of possible combinations is too large to comprehend.

    watchwatertilitboils , Ayudia Fatma Report

    #8

    Washington Monument surrounded by flags representing favorite shocking facts about landmarks The Washington monument has no mortar and the weight of the bricks holds it together.

    ItsGonnaBeARager Report

    #9

    Man in handcuffs illustrating favorite shocking facts about crime The Spanish word for handcuffs is “esposas”. The spanish name for a wife? Esposa.

    Schroederlaw , Curated Lifestyle Report

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    #10

    Ancient world map showing continental drift as a fascinating historic fact Pangaea was only the most recent supercontinent - there have actually been several over the course of Earth's history - forming, breaking, and forming again.

    Solitaire_XIV , Von Alfred Wegener erstellte Karte Report

    #11

    Bald eagle soaring with a fish symbolizing shocking nature facts A bald eagle nest is about as big around as a booth in a restaurant.

    ToastetteEgg , Mathew Schwartz Report

    Geoffrey Scott
    Community Member
    17 minutes ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    They are huge. Generally 6 feet across, quite easy to tell what it is from several hundred yards away.

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    #12

    Large tortoise walking on green grass with detailed shell I can't remember what made me look this up earlier in the week but I was reminded that Clive of India, Governor General of Bengal who passed awasy in 1774, had a pet giant tortoise, Adwaita, that didn't pass until 2006.

    RianJohnsonIsAFool , Dušan veverkolog Report

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    #13

    White fluffy cloud floating in bright blue sky One single cloud can weigh up to around 1,000,000 tonnes.

    AustraliaOutback , engin akyurt Report

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    #14

    Golfer swinging club on green golf course under cloudy sky There are more golf courses than McDonald's in the USA (16,000 vs. 13,000). It seems like McDonald's are absolutely everywhere, and golf courses are gigantic.

    Emolgad , Getty Images Report

    #15

    Young boy with dog showcasing favorite shocking facts about childhood On the 12th of March 1951, Dennis the Menace was introduced to British audiences in a comic called the Beano.

    On March 12th 1951, Dennis the Menace was introduced to American audiences in a comic strip.

    These are not the same character and neither production houses were aware of what the other was doing. So by total coincidence, the world was introduced to two different characters both called Dennis the Menace on the exact same day.

    Tarantula22 Report

    UKGrandad
    Community Member
    14 minutes ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    But we also have his female counterpart, Minnie the Minx, which just happened to be my youngest daughter's well-earned nickname.

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    #16

    Woman peacefully sleeping on blue pillow showing favorite shocking facts about sleep Sleep is extremely important for consolidating memory. It may be that this is why we dream - it's our brain's process of sorting through memories and putting them in the correct folders. As such, those who experience a profound lack of sleep over the course of their lives is significantly more prone to developing dementia.

    Righteous_Hand , bruce mars Report

    Geoffrey Scott
    Community Member
    15 minutes ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Huh... does that include the 'stable genius'?

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    #17

    Seattle skyline at sunset highlighting fascinating city facts beyond the usual 60% of Canadians live south of Seattle, WA

    And to get to Canada from Detroit, you go south, not north.

    emjaybe , Stephen Plopper Report

    #18

    Grandfather and child fishing together illustrating simple shocking facts You will not scare the fish away by talking while fishing. They just wanted us to shut up and be quiet.

    zulupunk , Anastasiya Chervinska Report

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    #19

    Man sitting indoors holding head showing fatigue or stress One thing that still shocks me is that your brain can replay emotional pain almost the same way it processes physical pain. Makes sense why some memories hurt for years.

    Familiar-Composer637 , Mehdi Yousefi Report

    #20

    Close-up of octopus showing tentacles and texture underwater I learned that octopuses have three hearts and it still sounds fake every time I hear it.

    CrimsonTitanP431 , Diane Picchiottino Report

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    #21

    Vintage steam train with smoke at railway station shocking facts Steam trains are older than bicycles.

    tastiefreeze , Anthony Report

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    #22

    Athlete in yellow Puma shirt at interview backdrop shocking facts At his peak Usain Bolt moved at a pace of over 34 feet (10.43 meters) per second. I mean, take a tape measure and measure that distance out. Per second.

    ShittalkyCaps Report

    #23

    Close-up of clock and humidity gauge reflecting light shocking facts Ever quickly glance at clock and notice the second hand feels like it takes longer than a second to move? That's your brain pretending that you saw the clock sooner than you actually did.

    It's a side effect of your brain "zoning out" when you move your eyes, to stop you getting constant motion sickness. Your eyes move towards the clock, your brain temporarily stops processing visual information, your eyes land on the clock, then your brain fills in the gap backwards, acting like you were already looking at the clock during the period without visual information. The illusion works in nearly all situations, but for clocks and timers, when we intuitively know the timing of a change, a portion of the tick isn't actually real and feels longer.

    What's shocking about this is that your brain is able to seemingly go backwards in time, albeit for a split second, and make you believe you saw something when you didn't.

    AlterEdward , Lana Kravchenko Report

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    #24

    1) That someone who is barely literate can be US president. 2) That the barely literate person does not need to produce school and university transcripts and tax files to qualify for US president.

    Quirky-Amphibian-992 Report

    #25

    Homeless person sitting on city sidewalk in cold night sharing shocking facts 1/3 of homeless people experienced a traumatic brain injury. 


    Imagine slipping on rock in your driveway and uncomfortably bonking your head only for your life to begin unraveling over a period of weeks or months. 


    You become so impulsive that you become unreliable at work, your spouse thinks your new behavior is too dangerous for your kids to be around. Your parents can no longer keep giving you money. 


    All because a random rock in your driveway caused you to trip and bonk your head.

    DeltaUltra , Ev Report

    Geoffrey Scott
    Community Member
    12 minutes ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I have had 2 serious concussions (need to be woken up every hour for the 1st 24). Do NOT recommend.

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    #26

    Worker smoothing wet concrete displaying interesting construction facts Between 2011 and 2013, China used more cement than the United States used during the entire 20th century.

    Agile-Asparagus1517 , Getty Images Report

    #27

    View from a boat on a river depicting fascinating travel and exploration facts 4 km or 2.5 miles Under the Amazon river is the Hamza River, which is much wider and roughly the same length as the Amazon river.

    goofydude9000 , Nareeta Martin Report

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    #28

    Bee collecting nectar from yellow flowers illustrating shocking nature facts That bees can daydream and think about their day. They could be on a flower thinking about the flowers they visited.

    Gentle_Smiler , Getty Images Report

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    #29

    Black and white portrait of Abraham Lincoln showing fascinating history facts Joe Biden was born closer in time to Abraham Lincoln's presidency than to his own.

    GoodLordChokeAnABomb , Alexander Gardner Report

    #30

    Schizophrenia has never been observed/diagnosed (anywhere in the world) in a person who was blind since birth.

    Big_Monitor963 Report

    #31

    Person stepping on a digital scale showing shocking weight facts That your body makes 80-120 lbs of atp for energy everyday and uses it just as fast so you never gain or lose weight.

    Stonegen70 , Getty Images Report

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    #32

    When you get an IV, the needle doesn't stay in your arm. Only a little flexible tube does.

    TurnKey9558 Report

    #33

    The entire modern stock of penicillin came from a moldy melon.

    Redneckbutterfly Report

    #34

    Pregnant woman touching belly depicting favorite shocking facts about pregnancy That the egg that made you was inside your grandmother.

    OldSuccess9715 , Natalia Blauth Report

    #35

    Humans live closer in time to TRex than TRex lived to Stegosauruses. The time line of dinosaurs being the dominant species on the planet is incomprehensible.

    CillRed Report

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    #36

    The Appalachians are the same tectonic range as the Caledonians: the central to north Atlantic region of North America has the same mountains as the northern Atlantic region of Europe.

    The lower layers don't have fossils, because they began forming before the evolution of bones (1.2 billion years for the Appalachians, 400 million years for bones).

    saintsithney Report

    Nathaniel He/Him Cis-Het
    Community Member
    Premium
    1 hour ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Mount Everest is younger than the dinosaurs.

    #37

    The word 'Set' has over 400 definitions, and its entry in the Oxford English Dictionary is over 60,000 words long.

    no_lemom_no_melon Report

    #38

    That a study from around 2010-2014ish showed that 4% of the US population believes that shapeshifting reptilian aliens control world politics.

    It completely shifted my views on what constitutes a large enough number of people to be concerned about their opinions at a national level.

    Now, it was a single study and it could be way off today, but 4% of the US population is around 13 million people.

    So when I hear that a few dozen people are complaining on a social media site about something, it becomes so much easier to ignore the rage baiting.

    silentsurge Report

    Geoffrey Scott
    Community Member
    7 minutes ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    A lot of Americans feel the US should be a 'Christian Nation'. It does not occur to the Protestants(which is where most of this desire comes from) that the Catholic sect of Christianity is, by far, the largest sect. "So, Billy Baptist, you want the Pope as the leader of a 'Christian Nation?"

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    #39

    When persons have a kidney transplant, the old non-working kidney is left in place!

    (Unless its diseased or something) they just leave it and put the new one "nearby"!????

    I'm 59 and learned this only a couple years ago.

    I thought transplant meant "in with the new, out with the old".

    DotAffectionate87 Report

    UKGrandad
    Community Member
    6 minutes ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    No, it means 'out of one and into the other'. Oh, and it's 'people', not 'persons'. You're 59 and still haven't learned this.

    #40

    Beautiful New Zealand has only been inhabited for 8-900 years and its neighbor, Australia for 80-90,000 years.

    irena888 Report

    #41

    If a billion people from both China and India didn't exist, they would still be the #1 and #2 most populous nations in the world.

    Professional-Hope389 Report

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    #42

    I thought billboards were specially printed paper glued to the board. Theyre actually printed tarps tied around the back to keep them taut. I found this out when my mom found a website that let's you buy old ones thay have been taken down super cheap. I think she paid like $40 for the one she got that was big enough to cover their entire camper trailer.

    JazzyCher Report

    UKGrandad
    Community Member
    4 minutes ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Except for the majority of them that are printed on paper and are pasted to the board in stríps, just like wallpaper.

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    #43

    There are people younger than youtube with jobs now.

    _CandyflossBunni Report

    #44

    Did you know that half of your bones are inside your hands and feet, if someone says im gonna crush every bone in your body i always think "thats a lot of work" but crushing half your bones, thats easy.
    (Dont worry im not a psycho, that true fact was a reference to a character on a show).

    aFailedGuy Report

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    #45

    Ne of the wildest facts to me is this:

    Your brain never actually experiences the present moment.

    By the time light hits your eyes, signals travel through nerves, get processed by neurons, stitched into a coherent reality by the brain — you’re already milliseconds behind. Consciousness is basically a beautifully edited replay.

    So the “now” you feel?
    It’s a constructed simulation running slightly after reality already happened.

    And somehow, inside that delay, humans write poetry, fall in love, build rockets, and stare at stars that have been gone for millions of years.

    The universe is late to itself.
    And still moving.

    Impossible_Cup_6611 Report

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    #46

    A woodpeckers tongue wraps around its brain to protect it while he is woodpecking.

    joy030 Report

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    #47

    Animal Testing. Like I have been blissfully ignorant for a while....and now every. single. product. I use has been tested on some poor creature.....it is destroying me...

    SamanthasPlace46 Report

    UKGrandad
    Community Member
    2 minutes ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Not as much as it destroys the animals.

    #48

    All religions (and many other things we "believe" in) are myths made up by mankind once we have refined our language skills about 10,000 years ago. This is called fictive language skills.

    SyntheticOne Report

    Geoffrey Scott
    Community Member
    4 minutes ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    It's not the Bible I have an issue with. It's man's interpretation.