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There’s more to our wonderful world than any single person could ever know. When one Reddit post asked people to share facts that they thought nobody else knows, the rest of us got a great list of curiosities from around the world.

Did you know, for example, that dolphins can be trained to perform military aquatic guard duty? Or that grass only evolved once dinosaurs were practically extinct? There are plenty more fascinating facts in this list, so scroll on and learn something new!

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#1

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) The "dog days of summer" refers to the time of the year when the dog star, Sirius, is brightest in the sky.

anon , daniel plan Report

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#2

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Sarah Winchester (who built the “Winchester Mystery House”) was not into the occult, wasn’t afraid of evil spirits, and didn’t think she could live forever by continuing construction of her house - or, at least there is no evidence to support that. People who knew her said she was a devout Christian and would never have anything to do with the occult. The stories about spiritualism and paranoia are for the tourists. She probably just liked having workmen around and a little activity going on at the house - she was one of the richest women in the world, so she could do as she pleased. Some who knew her said she may have done it to keep locals employed. Far from being afraid of stopping construction, one of her letters mentions that she halted construction due to excessive heat out of concern for the workmen.
It’s interesting how BS can just take the place of reality if it’s repeated often enough.

nautius_maximus1 , loc.gov Report

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Doc Moran
Doc Moran
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Yes this. Also, when you visit it it’s not that weird. Yes some of the angles and doors and one staircase are nonsensical, but a lot of the features were practical to accommodate her physical disabilities. I was surprised how many of the rooms were juts light, airy, and pleasant. The tourist PR spin ends up being irritating when you visit the house.

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#3

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Sharks have been around longer than the rings of Saturn.

That’s right! Current estimates suggest that Saturn’s rings are about 400 million years old, while sharks evolved roughly 450 million years ago. Interestingly, that also makes sharks older than trees and grass.

Modern humans been around for about 200,000 years. Humans about 6 million. We were in a stone age for about 2.6 million years.

We were not the first to use stone tools. There was another species, probably a close cousin, that used them about 700,000 years before the first human.

Chimpanzees and some other animals are currently in a stone age.

Dinosaurs died out 65 million years ago. Triceratops were probably the last species to die out.

Grass didn't evolve until 66 million years ago (iirc) so only the last of the dinosaurs saw grass.

Tyrannosaurus and triceratops lived closer to us (65 million years) than the stegosaurus (80 million years).

I have more. I'm full of useless facts.

kingferret53 , Bruno Aguirre Report

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#4

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) There are at least three people who were born before the Wright Brothers took their first flight at Kittyhawk who were still alive when the Mars Rover died.

When they were born, humankind was stuck on the ground. In their lifetime, they saw single person flight, then military flight, intercontinental flight, a (gasp) female pilot, commercial flights, supersonic flight, space flight, humans on the moon, a probe sent out of the solar system, a robot cruising around on an entirely different planet picking up rocks, and finally that robot had been there so long it died. All in their lifetime.

That's just crazy to me.

King0Horse , Library of Congress Report

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#5

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) There was a man, Angus Barbieri who didn't eat for 382 days. He was morbidly obese and lived on tea, water, soda water and coffee while visiting the hospital weekly for vitamin and electrolyte treatments. He lost close to 280 lbs and broke his fast with an egg once he met his goal weight.

SurrealEffects , noiseformind Report

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#6

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) The spotted salamander is the only vertebrate that photosynthesises.

Believe it or not but this fact gets even more interesting. The yellow spotted salamander uses photosynthesis in the embryonic stage. It does this by forming a symbiotic relationship with algae, which produces oxygen to feed the embryo as it develops and receives the embryo’s waste products and carbon dioxide. Researchers have even found algae inside the embryo’s cells!

Centuri42 , Paweł Sroka Report

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#7

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Greater one-horned rhino or Great Indian rhinoceros population stands at around 3,700 individuals, a significant increase from around 200 remaining at the turn of the 20th century. Strict protection and management action from Indian and Nepalese authorities and their partners are responsible for bringing the species back from the brink.

The Great Indian rhinoceros is definitely a conservation success story in the making, but there are still other species of rhinoceros that are at great risk of going extinct. Only about 60 Javan and about 200 Sumatran rhinoceros are thought to exist in the wild.

SuvenPan , Sanjay ach Report

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#8

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) The tongue on a woodpecker wraps around its brain as a form of soft insulation when it hammers. Then the tongue is able to extend far into the tree to retrieve bugs when it isn’t hammering.

anon , Bill Pennell Report

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NatalieC
NatalieC
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

One time I saved an injured woodpecker who was about to get molested by a bunch of cats. He was very sweet and polite.

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#9

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Opossums are extremely unlikely to have rabies. They have a lower body temperature than most mammals and it makes them an unsuitable host for rabies.

Opossums are fascinating creatures, and not only because they have a high resistance to rabies. Scientists believe that they were around at least as far back as the extinction of the dinosaurs, and they are also the only type of marsupial native to the US.

marcusjohnston , Robert Linder Report

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Susan Teter
Susan Teter
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1 year ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Right now I have a mama opossum and her 8 babies in my old garage. They get along with my outside cats, and the babies actually play with my cats toys! The babies have watched the cats and have learned to use the litter box! Truly intelligent creatures!!!

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#10

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) A second is called a second because it is the 2nd division of the hour by 60 (pars minuta secunda), the 1st division being a minute (pars minuta prima).

edlee98765 , Agê Barros Report

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#11

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) I don't think most people know the meaning of "prodigal." They know the parable of The Prodigal Son and think it refers to someone that leaves and then has to come crawling back, but that's incorrect. "Prodigal" means to spend money lavishly or wastefully. The prodigal son was prodigal whether or not he ever went back to his father.

onlytoask , blonybadr Report

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censorshipsucks12 avatar
censorshipsucks
censorshipsucks
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

compare: child prodigy: child who is good at stuff. OR prodigious supply: a large supply.

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#12

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Big Ben is the Bell not the clock or tower.

anon , Clever Visuals Report

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Mark Fuller
Mark Fuller
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Is this really one of those that "barely anyone knows"? I thought it was common knowledge, at least if you're British.

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#13

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) The nuke stockpile in Washington State is guarded by trained dolphins that seek out and clamp a balloon on unfamiliar divers.

Gothsalts , Rudney Uezu Report

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Matt Du
Matt Du
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1 year ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Preowned red balloons, that are washed out of the sewer

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#14

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Hans Zimmer was the keyboard player on "Video Killed The Radio Star"

Kryodamus , oldmach Report

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whatever
whatever
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I'm so old I remember when MTV actually played music videos.

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#15

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Gary Numan was born two weeks before Gary Oldman

steve0suprem0 , garynuman Report

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Ranger Kanootsen
Ranger Kanootsen
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Gary Numan is the most incredible musician I've ever heard. Props to him!!

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#16

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Raindrops don’t fall in the drip shape popularly conveyed. They fall in the shape of tiny parachutes or hamburger buns.

CBGville , Inge Maria Report

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Gøøse
Gøøse
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

This is due to the fact that, when an object is falling, it tries to orient itself in the position with the most amount of drag. Thus, raindrops with a flat surface on the bottom have way more drag than the classic teardrop shape.

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#17

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Before being born, two of the four chambers of a baby's heart are not used, they're actually bypassed!

There's no need to pump de-oxygenated blood to the lungs when in the womb, because the lungs aren't breathing air yet, and so are not supplying oxygen. All the oxygen comes from the umbilical cord.

So the two chambers responsible for sending blood to/from the lungs are (largely) bypassed.

whomp1970 , Volodymyr Hryshchenko Report

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#18

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Rabies kills around 60,000 people globally every year. To date, only 14 people worldwide have been known to recover after developing symptoms.

Rabies is as deadly as it is because it targets our central nervous system and destroys our body’s ability to perform essential functions. However, it does have a moderately long incubation period. If a bite victim is treated with the vaccine within 10 days of being bitten, they can expect to survive, but by the time symptoms appear, it’s already too late.

Johhnymaddog316 , CDC PHIL Report

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Madam Puddyfoot
Madam Puddyfoot
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

This is why every animal- inside or out- should be vaccinated for rabies. Folks often say," My pet is indoors only", but if the pet escapes or a bat gets in the house, the risk is there. And they can transmit it to us. It is a myth that all animals with rabies act like Cujo. Many people don't realize that the only way to test for rabies in an animal is to examine brain tissue. So if a vet has to euthanize an animal that is a rabies suspect, we have to cut off the head and send it to the lab. It is exactly as gory and traumatic as you imagine.

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#19

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Boanthropy is a psychological disorder in which a person believes they are a cow and try to live their life as one. Medical explanations suggest late-stage syphilis as one of the causes? Cool

j451k4 , François Germain Report

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Lyone Fein
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Grazing in the meadow all day with the other gals, watching for cars. Cool.

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#20

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) More pigeons have war medals than horses, dogs or mules

Global-Program-437 , Nathan Dumlao Report

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Awkward Momma Panda
Awkward Momma Panda
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

In their defense, it is rather hard to care for a horse, dog, or mule when you’re a pigeon. A great many have helped war efforts, though.

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#21

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) The original Red Velvet cake didn’t use food coloring. The red color was a result of a chemical reaction between vinegar and dutch cocoa powder. It also originally used Ermine Frosting, a boiled milk frosting (which is delicious)

Dense_Calligrapher36 , amirali mirhashemian Report

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censorshipsucks12 avatar
censorshipsucks
censorshipsucks
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I always assumed it was because it used beetroot as the ingredient.

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#22

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Many species of shark have seven senses, most notably the ‘man eaters’ (I despise that term) Tiger, Bull, and Great White.

In addition to the traditional five, sharks also possess ampullae of lorenzini (gel-filled pores on their snout - think of the black freckles on a Great White) that detect electrical impulses such as spasmodic movement in water and ambient electrical fields, and the lateral line (a thin organ running down their sides) that acts as a magnetic detector, which allows the shark to orient itself in real time to the earth’s magnetic field, giving it a sense of direction akin to that of a bird.

Great Whites additionally are coated in denticles. Despite their smooth appearance, their skin is actually extremely rough and toothlike. Think of sandpaper on some serious steroids. A Great White bumping into you can actually peel layers off you like a potato peeler. That’s if they don’t give you a bite of course!

On to that, despite their fearsome reputation, Great Whites don’t care for humans as a food source. They need immense amounts of blubbery fat and meat like whales and seals can provide, we’re simply too lean for them to get much nutrition. Most attacks are down to either territory being defended, or simple mistaken identity. They’ve got terrible eyesight, so a human on a boogie board looks exactly like a seal from below. And, as they have no hands, biting is the only way they can be sure of something. It just sucks for us that that’s typically fatal.

Finally, if you ever get a moment, look up spy hopping. Sharks can and will pop their heads above water to get a lay of the land. It’s frightening to behold.

ReaverRogue , Wai Siew Report

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The Alchemist
The Alchemist
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Hate the term man eaters then go on to say "If they don't give you a bite" as if it's common, then explain it's not.

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#23

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) The girl who voiced Lilo in Lilo and Stitch also played Samara in The Ring, both released in the same year (2002).

ThrowRARAw , [deleted] Report

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#24

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) the middle name of Michael J. Fox is Andrew.

DieInsel1 , realmikejfox Report

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#25

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Concrete can set underwater.

cizzoo , uve sanchez Report

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censorshipsucks12 avatar
censorshipsucks
censorshipsucks
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

yes, because the reaction is silicate plus alumnium hydroxide catalysed by water to give aluminium silicate. Something like that. Point is the water is just a catalyst. It's not mud - a watery suspension of silicate particles. Mudbricks are made runny by water, and then dry out (loses the water) to the sun via evaporation, leaving the silicates in close proximity/bonded. Whereas concrete is an actual chemical reaction.

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#26

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Animals and other creatures each perceive time in different ways based on their Critical flicker frequency which is almost like their minds refresh rate, dogs for example perceive time as being slower than humans do and it's perceived as a little faster by cats.

This model can be used to describe our perception of time, but most directly, it is a term that reflects how our brains process visual information. A creature’s critical flicker frequency is the threshold at which a rapidly flashing light appears to them as a steadily shining light.

TwilightArcade , Sonja Langford Report

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#27

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) No one has found a centipede with exactly 100 legs, because all centipedes discovered have an odd number of pairs of legs they have found centipedes with 98(49 pairs) and 102(51 pairs) but never exactly 100.

ZagreusD , Viktor Talashuk Report

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censorshipsucks
censorshipsucks
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1 year ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Centipedes can have between 15 and 177 pairs of legs depending on the species (average 35 pairs), and millipedes can have up to 200 pairs. The main differences are that centipedes have one pair of legs on each segment of their bodies- millipedes have two. Also, centipedes are voracious predators with venonous toesies that want to murder you.

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#28

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) The Earth's rotation is slowing down, and we soon will have more than 24 hours in a day (well, soon, geologically speaking...).

As the Earth slows and extends the length of its days, we can consider what a “day” looks like on other planets in our solar system. The shortest is Jupiter at a zippy 10 hours and the longest is Venus at a painfully slow 5,832 hours. The closest day to hours is on Mars (25 hours).

toucanfrog , NASA Report

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Lyone Fein
Lyone Fein
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

We already have more than 24 hours in a day. This is why we have to add an extra day to the calendar every 4 years on leap year.

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#29

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) Of all the US states, Maine is the closest to Africa. Seriously look at a globe, not just that flat oval map you saw in every classroom growing up. Africa is further north than you think, and Maine is further east than you think.

slytherinprolly , Benigno Hoyuela Report

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Tyranamar Seuss
Tyranamar Seuss
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I'd have liked a globe picture where I could see both Maine and Africa.

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#30

Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers) A quarter has 119 ridges.

118 on a dime.

d2the3 , Joshua Hoehne Report

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