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Easy access to information has somewhat caused people to forget that the world we live in is a lot weirder than we tend to think. From hippo sweat being pink to the vast amount of hydrogen being burnt by a star every single second, the universe still has surprises around every single corner. 

Someone asked, “What is the coolest [freaking] fact you know?” and people from across the internet shared their best bit of lesser-known information about the world. So get comfortable, scroll through, upvote your favorites, and comment your own examples below. 

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#1

Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting The difference between a cemetery and a graveyard is that a graveyard is either attached to a holy place like a church or monastery/Temple or on the same land owned by said place, while a cemetery is a secular or generic term for any and all other burial places that accommodate the dead.

InternationalCod3604 , Seth Werkheiser Report

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    #2

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Hippopotamus milk is pink. Hippopotamus sweat is pink.

    Neither are strawberry flavour.

    TrivialBanal , Francis Storr Report

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    Kira Okah
    Kira Okah
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Hippo "sweat" is clear but turns RED when it contacts air due to containing Hipposudoric Acid. Hippo milk is WHITE, but sometimes the "sweat" contacts it and it turns pink.

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    #3

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting **They turn Niagara Falls down at night.** There are hydroelectric dams around the waterfalls for power generation, and the authorities divert more of the river through them at night when there aren't tourists around. During the day (and especially in peak season) they let more of the water through so the waterfall looks more spectacular. At time this cuts the flow of water over the falls by 75%.

    LtRegBarclay , niagarafallstourism Report

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    Despite the fact that many of us associate it with the idea of fun facts with the internet, perhaps a list like this or an X (formerly Twitter) page dedicated to them, this idea predates the internet by over one hundred years. In the 1850s, there was a newspaper column and, later, an entire book dedicated to what the people of the time would call “Fun, Fact, and Fancy,” but we would just see them as fun facts.

    Of course, “fun” is in the eye of the beholder, so to speak, but from trivia games to just loving to learn, we humans do have a fascination for better understanding the world around us. After all, these facts serve as a great reminder that the universe is so much more mysterious and surprising than we might expect it to be. 
    #4

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting The earliest evidence for fried chicken is from 1500 BCE. It comes from Luzon in the Philippines. The bones that documented some 50k of them from a midden heap show two things. First, they are from Green Jungle Fowl, the wild ancestor of modern chickens, that were kept penned their entire lives based on wing development . This happens when you clip the wing feathers to keep them from flying. Secondly we know the earliest layers was cooked in coconut oil due to the residue worked into the heated bone tips. This also leads local archaeologists to believe the locals were fermenting coconut milk to make a local drink called tuba. This is still one of the methods used today. All in all 3500 years ago my fellow Filipinos were getting drunk and eating fried chicken. Not much has changed.

    PinoyBrad , rob_rob2001 Report

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    kirstenkerkhof avatar
    Kirsten Kerkhof
    Kirsten Kerkhof
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    It is all about priorities. They could have invented something boring, but they settled for liquor and fried chicken. Can't say I blame them ...

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    #5

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting We live in an explosion so violent that dust woke up and started thinking about it. We are the universe observing and considering itself.

    The_Mr_Wilson , gagneet parmar Report

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    #6

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Female lions have uteruses that are basically little hammocks! So as the kittens are developing, they ride along in these things that turn and stabilize as the mother is running and hunting. I thought that was pretty cool.

    gunchucks_ , Africa Gómez Report

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    carlo custodio
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    I think this is not only true for lions. The fetuses of mammals are suspended (or "swim") in amniotic fluid thus protecting them from being jarred and from being thrown about while the mother is in motion.

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    #7

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting For me it’s that sharks predate trees and Saturn’s rings. Our little blue marble is older and holding more secrets than we can begin to imagine.

    Alone_Instruction_13 , Michael Ravodin Report

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    acey-ace16 avatar
    Ace
    Ace
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    "Pre-date", not predate. I can just about imagine a gang of sharks surrounding a tree and closing in for the kill, but of the 18 species of shark found in the waters near the Kennedy Space Center there's not a single documented case of any of them successfully stowing away on board a rocket.

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    #8

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Bees have tiny hairs all over their compound eyes. These microscopic hairs are called setae, and they help bees to sense wind direction and velocity. The setae allow bees to detect air movements within a few centimeters per second. This helps them navigate back to the hive on windy days. I think it's amazing that bees have built-in anemometers on their eyes!

    Rafikki_Lion , caroline legg Report

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    #9

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting What you see, is only what your brain interprets. You don't see everything, and sometimes you see things that aren't there.

    For instance, you can always see your nose (unless you're Voldemort).

    Your brain just blocks it out, but it's there, in your field of vision always. Imagine, what other s**t your brain gets up to you without you knowing.

    darylrogerson , GreenFlames09 Report

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    leeriches18 avatar
    Lee
    Lee
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    I literally CAN always see my nose and I know some other people do too. But whenever we say this people tell us we're lying, when we're not. My nose is rather large that I have to physically turn my head in the direction of something to get a proper view.

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    #10

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Bananas contain potassium, and since potassium decays, that makes the yellow fruit radioactive,you’d need to eat ten million bananas in one sitting to die of banana-induced radiation poisoning.

    frostking66899 , 24oranges.nl Report

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    #11

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Dogs noses are way more sensitive than ours at differentiating smells. Whereas we can smell a stew warming up on the stove top, a dog can actually smell all its components (meat, potato, carrots, onions, etc) separately.

    OrneryConelover70 , Georgie Pauwels Report

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    Roxy222uk
    Roxy222uk
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    I"m currently reading a book about taste and food, and this isn't true. Humans have an astonishing ability to distinguish a vast number of different tastes, which is linked to smell of course, far more than most animals. This is down to our omnivorous and very varied diet. Where dogs beat us hands down is their ability to pick up very dilute scent.

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    #12

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting There is a type of jellyfish that is basically immortal. After it reaches sexual maturity it can just decide to revert and become immature again, making it theoretically live forever. Though in practice they do die.

    sourbelle , Mark Doliner Report

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    surenu avatar
    Surenu
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Pff I become immature all the time, usually when I'm telling a joke

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    #13

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting A sloth can hold its breath longer than a dolphin.

    Eggysh , Andrew Wilkinson Report

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    #14

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Australia is wider than moon.

    PrestigiousAd7620 , WANG.PC Report

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    #15

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Star ⭐ died for you....

    Every atom in your body came from a star that exploded. And, the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics: You are all stardust. You couldn’t be here if stars hadn’t exploded, because the elements - the carbon, nitrogen, oxygen, iron, all the things that matter for evolution and for life - weren’t created at the beginning of time. They were created in the nuclear furnaces of stars, and the only way for them to get into your body is if those stars were kind enough to explode. The stars died so that you could be here today.

    ~ Lawrence M. Krauss

    Majestic_Guy2024 , Nick Franco 228 Report

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    acey-ace16 avatar
    Ace
    Ace
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    #We are stardust We are golden And we've got to get ourselves Back to the garden

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    #16

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting The moon looks different from the southern hemisphere than it does in the north. As an Argentine I always find this fascinating when I travel.

    Gay_argentine_bear , osde8info Report

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    adrian_5 avatar
    Adrian
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    I noticed a difference just moving from the UK to southern California, due to the change in latitude.

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    #17

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Tighten rusted bolt before loosen. Much smart.

    Bubbly_Damage1678 , theilr Report

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    #18

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Dolphins have two brains. Each brain is equal to the size of a human brain.

    Pink dolphins exist & theyre so smart they brought drowing humans to the shore.

    Dolphins in captivity were rewarded with treats for each piece of paper theyd surrender to their trainer (helps clean the pool). The dolphins then tore a paper into pieces to get more treats.

    fakeLinkZelda , Andreas Ahrens Report

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    Ace
    Ace
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    10 months ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    No, they do not have two brains. Their brains are around 25% larger than humans', but some specific areas, e.g. the hippocampus, are significantly smaller which gives us the ability to think in ways that they cannot.

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    #19

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting the sheer fact of existing.

    it is so utterly astounding and incomprehensible and wondrous and awesome, yet we appreciate it so seldom in all its depth and meaning, let alone contemplate that we and the universe exist.

    everybody, get more goosebumps every day from the depth and transcendence and ubiquitousness of us and the universe existing and being inexplicable intricably interwoven with the fabric of existence itself. we are in the most profound way always in contact with the everchanging yet constant substrate of existence iteslf.

    Dangerous-Finger9259 , Peter Toporowski Report

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    #20

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting The sun will actually not explode. It will instead gradually get bigger and hotter until it swallows mercury and Venus and absolutely fries the Earth and then slowly shrink down into a white dwarf and fade away. Our sun is too small to go supernova even though many people think it can still for some reason and nobody corrects them.

    Coronazonewearmask , Nic Redhead Report

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    Nike Pancakes
    Nike Pancakes
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    It won't completely explode like a supernova, and this statement is true. It will blow off trillions of tons of matter in its final phases, however.

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    #21

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Also, in an experiment, it was proved that observing something changes how it acts. Scientists passed rays through a sheet of gold foil. When they were not in the room watching, it left the same pattern every time. When they observed the experiment, the pattern changed every time. Therefor, the is no such thing as observing without changing things.

    unstopablystoopid , Nadejda Bostanova Report

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    davidpaterson avatar
    David Paterson
    David Paterson
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Another connected weird fact is that the mathematics that allows this, quantum mechanics, relies on the cancellation of infinities (renormalization) that mathematicians tell us can't be done. But it works.

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    #22

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Aotearoa/New Zealand and Australia are relatively close to one another in a global scale and often conflated in the minds of most of us in the Northern Hemisphere.

    Despite that, Australia has been continuously inhabited for almost 70,000 years and Aotearoa/New Zealand is the last major landmass to have experienced human settlement, less than 850 years ago.

    And no, that's not colonial settlement, that's when the Maori got there.

    WordsUnthought , Martyn Wright Report

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    colinmatthews avatar
    Colin Matthews
    Colin Matthews
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Stop calling NZ Aotearoa. It’s a made up name that was never used by Māori.

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    #23

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting There’s a type of octopus that has three hearts, reproduces once’s in their life, then decides to f**k off and die. These kind of animals are called semelparous.

    Financial_Extent3196 , Colby Stopa Report

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    #24

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting I just recently learned that your immune system does not know your eyes exist. If they did, they'd attack the eyes and destroy your vision. I believe it's a foreign object for them.

    MHullRealtr77 , Gorgeous Eyes Report

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    askrivan avatar
    80 Van
    80 Van
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    This fact is kind of confusing to me. How do we know this? Our immune systems don’t usually attack our eyes, but they don’t usually attack other parts of our body either. Does this bean or immune system didn’t know that the other parts of our bodies exist either? Also, you can get infections in your eye that your body heals (like pinkeye), so your immune system misses have something to do with it, right? Can someone explain this fact a bit better?

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    #25

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Think about the universe, and you might imagine stars, planets, and galaxies. But all that stuff we can see and touch only makes up about 4% of the universe. The rest is mostly hidden from us, made up of mysterious dark matter and dark energy. Dark matter, which is about 26% of the universe, doesn't give off light, but we know it's there because it has a gravitational grip on galaxies. Dark energy is even stranger, making up around 70% of the universe, and it's pushing everything in the universe apart, faster and faster. So, the universe is mostly made of stuff we can't see or understand, which is pretty mind-blowing when you think about it.

    Kilperik , Colin Durfee Report

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    David Paterson
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    10 months ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Just a minor correction. Dark matter is stranger than Dark energy. We know what Dark energy is, it was even known to Einstein more than 100 years ago, although he had the size of it wrong. On the other hand, nobody has even the slightest clue as to what Dark Matter is, all we can do so far is tell you what Dark Matter isn't.

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    #26

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting The entire time period in which humans developed until now, would fit about 120x between the era of stegosaurus and the era in which Tyrannosaurus Rex lived. The time period is so huge in fact, that we are closer to some dinosaurs time wise, than some dinosaurs are to eachother.

    ARandomChocolateCake , ayu oshimi Report

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    David Paterson
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Even more fascinating is that our direct ancestors, the early primates, were exact contemporaries of T rex. The first true mammals (and the first true birds) were already around closer to the time of Stegosaurus than to the time of T rex. The earliest known true mammal was around 205 million years ago, a full 135 million years before T rex existed.

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    #27

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting If you are currently eating a pear in the southern hemisphere it was likely picked in late February 2023.

    _EnFlaMEd , Adrian Scottow Report

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    Annik Perrot
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    And if you eat an apple in May in the northern hemisphere, it's either spent 6+ months in a fridge, or come from the southern hemisphere.

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    #28

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Pirates wear a patch over one eye so when they go below deck they can switch that patch off the dark eye and not be "sunblind" in the new, darker, below deck setting.

    VinceBrogan8 , Subconsci Productions Report

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    Phil
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    No. We have many images (prints, paintings, sketches, etc.) of many of the pirates from the 'Golden Age of Piracy' and not one of them has an eye patch. Contemporary descriptions of pirates (newspapers, pamphlets, warrants, etc.) tell us that they looked like every other European sailor.

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    #29

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting The Sun fuses 660 million tons of hydrogen into helium every second. This has been happening for 4.5 billion years, and will continue for another 5 billion.

    Hydraulis , Daniel R. Blume Report

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    #30

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting The universe expands 73 kilometers per second.

    vigg1__ , Hubble ESA Report

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    Will Cable
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    This is why the TV remote on the coffee table seems to always be just out of reach and that a trip to the toilet at night seems so far away

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    #31

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting There is a species of jelly (not jellyfish, they're different) that grows a new a**s everytime it defecates.

    manofmatt , Sara J. Report

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    Kira Okah
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Mnemiopsis leidyi, a type of comb jelly. They have a transient a**s, so effectively the gut and rear of the body have no permanent connection. Whe waste builds up, the gut swells until it touches the skin, fuses with it to create an a**s, and after pooping, the gut uncouples and the hole seals again.

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    #32

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Equador has a rare species of horned frog that is a marsupial. The female lays eggs, the male fertilizes them then puts them in a pouch on the mother’s back.

    ColoradoCorrie , Brian Gratwicke Report

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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    This is incredibly not true. Marsupials are mammals. Mammals are defined by having mammary glands that produce milk for their young. No amphibian is also a mammal. Mammals also have hearts with 4 chambers. Reptiles and amphibians have hearts with only 2 chambers.

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    #33

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Somewhere in south America. You have like a mountain plateau and under it a valley/jungle. The animals on the plateau have more in common with animals from Africa then the Animals down in the valley/jungle because of tectonic plate shifting.

    RootlessForest , mikebelgard@sbcglobal.net (not the actual photo) Report

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    #34

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting Hydrogen is a colourless, odourless gas, which if left alone in large enough quantities, for long enough, will begin to think about itself.

    andyrocks , Burnsey (AKA Sean Burns) (not the actual photo) Report

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    #35

    Someone Asked Folks To Share The Best Fact They’ve Ever Heard, Here Are The 35 Most Interesting The planets in our solar system can fit between earth and the moon.

    royalpyroz , Ralph Buckley Report

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    Paul K. Johnson
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    10 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

    Earth also has the best gift shops of all the planets. The gift shops on Venus are particularly horrible.

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