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Today I Learned, also known as TIL, is the fifth-biggest subreddit. It unites a whopping 30.9 million members, who all go there with a single goal in mind — to enrich each other's understanding of the world.

Sharing interesting facts about human psychology, animal behavior, food history, and pretty much everything else you can imagine, this online community is full of fascinating trivia that has been successfully evading many of us.

Continue scrolling to check out its recent posts, and for more, fire up our older publications on TIL here, here, and here.

#1

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL that dogs intentionally try to make humans laugh. They understand that laughter means play, and play is positive.

PetLoverGuy1993 , seventyfourimages Report

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

Like my pup Cleo. She likes to do silly things. Here she is trying to go to bed but not quite making it An-attempt...50a13b.jpg An-attempt-was-made-63ff3d250a13b.jpg

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#2

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL Jonathan Goldsmith, AKA The Most Interesting Man in the World from the Dos Equis commercials, has been an advocate for landmine victim support, has assisted the effort to prevent and cure cancer in dogs, save the Siberian Tiger, and end child sex trafficking in Cambodia.

meep_launcher , Toglenn Report

#3

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL Japan has a 'wind phone'. An unconnected phone booth where grieving relatives go to 'talk' to their lost loved ones. Opened after the 2011 Fukushima earthquake/tsunami, it has seen over 30,000 visitors.

Standard-Assist-5793 , Matthew Komatsu Report

#4

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL The average life span of a pet cat has risen from seven years in the early 1980s to fifteen years as of 2021.

haddock420 , viki2win Report

#5

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL in 1915 a pharmacist saw his sister make her own mascara with coal and petroleum jelly and thought he could make a better product. His invention was easier to apply and won't burn a woman's eye. He named his new company Maybelline after his sister Maybel and the base material Vaseline.

shaka_sulu , Maybelline Report

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Abrufal
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

What I read was guys sister invents modern mascara guy steals idea and gets rich. It's okay though cause he used her name.......I did 0 research if it turns out his sister got rich also awesome

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#6

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL Environmental activist Julia “Butterfly” Hill lived in a 1500-year-old California redwood tree (known as Luna) 180 feet (55 m) off the ground for 738 days in order to prevent it from being chopped down by Pacific Lumber Company. She successfully saved the tree.

PyrowithJared , Shaun Walker Report

#7

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL about Third Man Syndrome. An unseen presence reported by mountain climbers and explorers during traumatic survival situations that talks to the victim, gives practical advise and encouragement.

my__name__is , McKay Savage Report

#8

TIL that elephant poaching has steadily decreased in certain African countries causing elephant populations to slowly begin rising.

IanMazgelis Report

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

We've also seen shortening of tusks which we believe has to do with short tusks being undesirable to poachers.

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#9

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL that Sea Urchins are called Sea Urchins because Hedgehogs used to be called Urchins until about the 15th century. Sea Urchins are Ocean Hedgehogs.

visiblecustomer2021 , www.quirkbooks.com Report

#10

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL that domestic dogs have developed muscles in there brow to "mimic" humans.

Doomncandy , StudioVK Report

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Mickysixxx
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Or we've selectively bred the ones that could move their eyebrows because we consider them cuter and as a result they now have the muscle rather than they developed it to mimic us

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#11

TIL Crows are a highly intelligent species, which are self-aware just like humans. They are as smart as Gorillas and have a complex brain which has the ability to reason.

DueDoughnut7842 Report

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

There's 3 in my neighborhood that I feed. If I'm gone before I feed them in the morning they will sit in a tree at the main road so they can spot my vehicle turning into our road. They will follow me home and patiently wait for about 30 minutes in the backyard for their food. If it's longer than that, one will sit on the deck and tap on my sliding door and caw until he sees me coming out. Visitors think it's hilarious, and they are cute! I named them Poe, Lenore, and Nevermore, what else?

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

Oh you’re so lucky, I used to feed a robin he would knock at my patio door when he wanted food.

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Beck
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

So a few years ago we had mice. We could catch them and throw their dead bodies in the field to the side of our yard. My husband noticed a hawk noticing him every day(when we first moved in the house had been abandoned for years We fixed it up. Tons of mice) so my husband started climbing on the roof and throwing the mice in the air and the hawk would catch it. This went on for a few weeks. One morning the hawk appeared on our doorstep. He could not fly. We carried him in and kept him in the kitchen until he could fly. Maybe he faked it and wanted first hand access to the mice idk. A few days later he was able to fly. That exact same day a random pregnant cat showed up in the front yard. She looked like she had gotten into a fight with the hawk. We took her in and we still have her and her kids. We think they fought each other and had seen us feeding squirrels and birds in our yard and knew we would take care of them. I still have a pic of me with a hawk in my lap.

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Red PANda (She/They)
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

They can use tools, have a complex language they can use to pass wisdom and warnings onto their kids, they make friends with wolves and team up to hunt, and they’re downright awesome

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

So do pigeons, jackdaws, ravens, blackbirds. The list goes on. It's to do with a neuron dense part of their brain called the pallium that does the same thing as our neo cortex.

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crowspectre (he/they)
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Crows are by far the most intelligent avians, though, with ravens coming in second. All corvids are very intelligent, but crows are exceedingly smart

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

The older I get the more and more I reconsider being an omnivore.

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BasedWang12.7
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I said it before and I will continue saying it..... I WANT CROW FRIENDS

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crowspectre (he/they)
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

YES THEYRE THE SECOND SMARTEST SPECIES AFTER APES AND THEYRE IN THE STONE SGE THEY MAKE TOOLS THEY COMMINICATE THEY HOLD FUNERALS THEY MAKE JOKES THEYRE VERY SMART AND ALSO INCREDIBLY STUPID I ONCE SAW ONE OF MY NEIGHBOURHOOD FLOCK JUMPING REPEATEDLY INTO A MIRROR BECAUSE HE THOUGHT IT WAS A PATHWAY. THEY ARE SELF AWARE HE WAS JUST A TAD STUPID I LOVE CROWS <3 THEY BRING YOU THINGS AND DONT SCREAM AT YOU IF YOU FEED THEM

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Red PANda (She/They)
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1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

YES THEYRE AMAZING DID YOU KNOW THEY MAKE FRIENDS WITH WOLVES ITS SO COOL LIKE THEY PLAY WITH THE PUPS ANS HELP THEM HUNT AND STUFF

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

Crows are massively intelligent, equivalent to a 3 year old child, are self aware and make complex emotional friendships. It’s almost as of subjective experience of our existence is not particular to humans

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FloralDangerNoodle
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I read their intelligence is equivalent to a 7 year old child...but I can't remember where I saw it, or I'd share it, sorry.

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

Indeed, crows are exceptionally intelligent. On the other hand I have seen a crow turning over a golf ball looking for a place to crack it like an egg.

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crowspectre (he/they)
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I once saw one of my neighbourhood crows jumping repeatedly into a mirror because it thought it could walk through it. They're incredibly impressive and smart but every species has its dumb ones

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

I swear this one has the CUTEST comments from all you fellow BoredPandas. Lol

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Panda Mona
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

we have a crow at our weekly market that patiently waits in line - each saturday - until it's his/her turn to get a walnut :-)

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

I love crows also...my husband and I fish the same lake for many years and when we're there the crows follow us (at a short distance of course) because they know when we are done whatever bait we have left we throw out to them. They seem to really like shiners/minnows!

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Son of Philosoraptor
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

When I first moved to my house, every night the crows and magpies would have a War of Sound to see who got the good roosting tree. Magpies work really well together and drove out the crows. Now for the last decade a flock of magpies owns the neighborhood. I watched them drive out a raven family that was trying to make a nest. At least the maggies are adorable in their own right.

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

My daughter has befriended a rather large crow that hangs around her apartment. She named him Edgar Alan Crow and he follows her when she walks the dogs. He likes to sit in a tree in front of her apartment and make these funny clicking sounds like a woodpecker

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Collin Lyle
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

They'll bring presents if you feed them. A crow used to bring me colorful plastic beads.

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Michelle C
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

They can teach down to their grand children who to hate and who to love in their communities. They’ve been observed giving their favorite humans’ children and grandchildren shiny trinkets or taking revenge on the descendants of those they despise!!

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CHRIS DOMRES
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

And they are probably always thinking "Darn, If I just has hands."

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Butts69
Community Member
11 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I once watched a crow picking up dry french fries and dipping them in a puddle to get them soft before eating them. I don't know why that's stuck with me so much but I thought it was very clever to watch.

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

We used to feed the Stellar Jays in Seattle. The feeder was empty one time and this bird started pecking on the sliding glass door and literally bitching me out in "Stellareze". When I filled the feeder and threw out the peanuts, I swear it sounded like "about time" from the bird.

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Carol DeBeaussaert
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I am trying to make friends with the crows in my neighborhood. What do they like to eat? I also feed squirrels. I heard they do not like squirrels.

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Kat Min
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

They are also a******s. I occasionally fed them in the mornigns when walking my dog. Suddenly they were flying low and in my hair because they wanted more. I've watched Hitcock and was not ok with that. They also try to tease my dog and pull hairs out of her tail. Lil' fckers - they do make me laugh, though. So mischivious!

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3 Owls In A Coat
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I miss my crow friend Bart. He lived in trees in my backyard and I used to feed him leftovers. He used to hop around like a big excited cutie when he saw me on my patio because he knew I’d give him snacks. Then he got a wife who I called Lady Bart, and they had a baby who I called Bart JR. Then I moved away :(

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Marie Dahme
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

And they will remember you forever !!! (Didn’t any year he Hitchcock’s The Birds ? Creepy boogers.)

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Allen Packard
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

And they are believed to be in their own Stone Age currently...

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kathyberthahazel
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I wonder if they think it's interesting that people are self-aware.

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Jessica Cifelli
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

They also have the ability to mimic sounds like a parrot. I think Ravens can do it too

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Ace Girl
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

How the heck did crows pull this off? Their brains aren't bigger than...bird brains.

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#12

TIL that in The Shawshank Redemption, when Morgan Freeman’s character is asked “why do they call you Red?” and he responds with “maybe it’s because I’m Irish”. It’s because the character in the novel was a red haired Irish man. They cast Freeman for the part but added the line as a joke.

lettuceandcucumber Report

#13

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL that in 1554 Elizabeth Crofts hid in a wall on Aldersgate Street, where she pretended to be a heavenly voice. Reputedly 17,000 people came to listen to her give out anti-Catholic propaganda.

Kurma-the-Turtle , Ethan Doyle White Report

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

so, if i simply hide in a wall, people will listen to anything i say? FANTASTIC

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#14

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL mixed-breed dogs live an average of 14 years while purebreds live only an average of almost 10 years.

Splashlight2 , Christopher_Boswell Report

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Jill Rhodry
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

It also depends on the size of the breed of dog - a great dane averages 8-10 years whereas a chihuahua 12-18 years.

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#15

TIL that the world's largest rodent "Capybara" are so chill to the point that they can form an unlikely friendship with crocodiles.

Lets_Earn26 Report

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#16

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL Willie O'Ree, the first black man to play in the NHL, was blind in one eye. It was caused by a ricocheting puck that hit him in the face when he was 18 and he kept it a secret for his entire 21-year career.

PyrowithJared , Eric Connolly Report

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

Does anyone know if the fact that he was blind in one eye would have disqualified him from being in the NHL? ?

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#17

TIL that New York City is reintroducing millions of oysters into their harbor to help clean the water and create marine habitats. They've been collecting used shells from local restaurants to create new homes for juvenile oysters.

Rexton9 Report

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

There's an American city (forgot which one) that uses mussels to gauge water cleanliness. Mussels will only filter clean water, so if there's a contamination the mussels will close their shells and the water will be shut off until its rectified.

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#18

TIL the Higgs-Boson Particle, aka "the God Particle", was actually called "the Goddamn Particle" by physicists because it was so difficult to detect. Publishers forced the rename, resulting in a confusing tie to religion for the particle which is nearly universally hated by physicists.

whozitsandwhatsits Report

#19

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL - The Middle Ages had retirement homes, where seniors could buy residence for the rest of their lives at a monastery with food, shelter and clothing included.

fencerman , monkeybusiness Report

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

This should always be a thing, but in about 10 years, it’s going to be bad in America

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#20

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL That in 1941, USS New York opened fire on an object, believing it to be a japanese aircraft. Fire commenced until a navigator realized they were shooting at Venus.

daesereg , www.pacificwarmuseum.org Report

#21

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL when an American film has more than one writer, an "&" indicates that the screenwriters collaborated on the script. An "and" means they worked independently on separate drafts.

griefofwant , Alex_star Report

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Nicola Roberts
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

et al means 'and others' in text books. I wonder why they can't say what it means. That way you wouldn't need to learn what all the coded language meant.

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#22

TIL a “ferocious rabbit” ran amok in Central Park in 1917. He terrorized the sheep in Sheep Meadow, maimed dogs, and fought an orangutan in the zoo.

cy_ko8 Report

#23

TIL Wolfgang Mozart had a sister, Maria Anna, who was also an extremely talented child prodigy in music. Sadly, she was prevented from performing as an adult. Many of her compositions have been lost, including one Wolfgang wrote that he was in ‘awe’ of, contributing to her obscurity.

madhatter103 Report

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

I wonder why Maria Anna was prevented to perform? Whatever the reason I'd be surprised if it was for her own good.

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#24

TIL In 1941 The Germans allowed the British RAF to drop a prosthetic leg by parachute to a Luftwaffe base in France. The Germans were very respectful of Captain Douglas Bader, who was captured after bailing from his plane with only one of his two prosthetic legs. One got stuck in his damaged plane.

aim179 Report

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#25

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL about the thymus, a small (1 oz.) organ behind the sternum that trains new white blood cells to NOT attack the body's own cells. Only 2% survive this rigorous training program; the rest commit suicide to prevent themselves from attacking friendly cells.

Iestwyn , en.wikipedia.org Report

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Stardust she/her
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1 year ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

This kind of makes me want to write a fanfic about the immune system. It’s so interesting to me

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#26

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL about hysterical strength, a display of extreme physical strength by humans, beyond what is believed to be normal. Examples include a woman saved several children by fighting a polar bear and a woman lifting a car high enough to save a person.

Paesano19 , ivanmorenosl Report

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

Our brain limits us from using our maximum strength to prevent bone and muscle damages, in a life or death situation that limit often gets lifted

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#27

TIL Founding Father and author of the Bill of Rights James Madison stopped the Virginia Assembly from establishing Christianity as the state religion with the help of Thomas Jefferson.

Dvibs420 Report

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Atero
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

And now we need further push to get religion out of the politics entirely... Doesn't matter which idol you worship - your personal believes should not affect lives and behavior of other people.

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#28

TIL that the writers on Futurama created and proved a new mathematical theorem as a plot point for a body-switching episode.

rarelyapropos Report

#29

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL in the 1800’s bananas were seen as “immoral fruit” because of their shape. Fruit companies began issuing postcards of women eating bananas to advertise the fruit wasn’t taboo.

mmmyesplease--- , Queensland State Archives Report

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

The only acceptable way to me to eat a banana in my male friends company is to break it half at first. Looking at their face during it is priceless.

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#30

“Today I Learned”: 30 Interesting Things About The World That People Didn’t Know Until Recently (New Pics) TIL On PC/console games, about 60% of the female avatars you meet are played by a male player.

28nov2022 , quanticfoundry.com Report

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

That's an improvement over 1995, when 95% of women on internet weren't, and 98.6% of internet statistics were plucked out of thin air.

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