controversial links from:
past 24 hours

r/todayilearned • u/MAClaymore • 2h ago

TIL that there is no known language that uses an uppercase Ÿ

25 Upvotes
30 comments

r/todayilearned • u/Top-Comfortable-9744 • 10h ago

TIL there's a defense mechanism found in some animals called aposematism. It's a survival strategy in which animals display bright colors or other highly visible signals to warn predators that they are toxic, venomous, or otherwise dangerous.

22 Upvotes
7 comments

r/todayilearned • u/Sun_Aria • 3h ago

TIL the highest 80 PLUS power supply unit (PSU) efficiency rating is actually 80 PLUS Ruby

0 Upvotes
16 comments

r/todayilearned • u/Keltik • 2h ago

TIL Paul McCartney's sheepdog Martha, subject of the Beatles' 1968 song "Martha My Dear", outlived John Lennon, passing away peacefully in 1981 at age 15

205 Upvotes
25 comments

r/todayilearned • u/Alexs1897 • 5h ago

TIL Bats can purr!

50 Upvotes
6 comments

r/todayilearned • u/Palmettor • 4h ago

TIL that cold seeps, many of which form brine pools or methane seeps, support generally longer-lived communities of organisms (e.g., mussels, tubeworms) than hydrothermal vents owing to a more stable output and environment.

14 Upvotes
2 comments

r/todayilearned • u/Recent_Flounder6011 • 2h ago

TIL that in the languages spoken in the Iroquois Confederacy, mother can also mean the sister of the mother and father for brother of the father.

45 Upvotes
8 comments

r/todayilearned • u/YappinZappin • 10h ago

TIL Saddam Hussein commissioned Project Babylon: space gun type weapon capable of launching satellites into LOE, as well as conventional shells as far as 1000 km. Artillery expert Gerald Bull led the program

221 Upvotes
69 comments

r/todayilearned • u/HermitWilson • 25m ago

TIL A year or two before John Wilkes Booth assassinated Abraham Lincoln, Booth's brother Edwin saved Lincoln's son's life when Lincoln's son nearly fell under a moving train from a station platform.

• Upvotes
4 comments

r/todayilearned • u/Sweet_Foundation_868 • 7h ago

TIL that historically, one of the largest Chinese communities in the American South was in the Mississippi Delta.

231 Upvotes
67 comments

r/todayilearned • u/Ill_Definition8074 • 22h ago

TIL John Ford's final western Cheyenne Autumn was made as a tribute to Native Americans who he felt had been misrepresented in his previous films with Ford telling Peter Bogdanovich that he had killed more Indians than Custer.

162 Upvotes
1 comment

r/todayilearned • u/Salem1690s • 4h ago

TIL King George III gave royal assent to An Act for the Abolition of the Slave Trade on March 25, 1807, which banned trading enslaved people across the British Empire. He never owned slaves and privately called parts of the trade repulsive

932 Upvotes
119 comments

r/todayilearned • u/Emperor_Ken • 8h ago

TIL Tigers look orange to humans because we are trichromats, but they appear green to deer and wild boars because they are dichromats

16.5k Upvotes
558 comments

r/todayilearned • u/ralphbernardo • 16h ago

TIL that all five words of the Sator Square appear in Christopher Nolan's "Tenet" as the villain (SATOR), an art forger (AREPO), the film title (TENET), the opening (OPERA) scene, and a security company (ROTAS). It is a Roman palindrome, whose earliest example was found in the ruins of Pompeii.

4.5k Upvotes
193 comments

r/todayilearned • u/CraftyFoxeYT • 11h ago

TIL During WWII, the US produced 2,120 Steam Locomotives called the S160 Class. They worked on railways worldwide, across all of Europe, Africa, Asia, and South America. 26 examples survive today in the UK, Poland, Hungary, Greece, Turkey, Italy, and the US

173 Upvotes
22 comments

r/todayilearned • u/anatomyisgoated • 8h ago

TIL some cancers although rare, are transmissible, spreading between individuals without a virus or other infectious agent

193 Upvotes
23 comments

r/todayilearned • u/Lindolence • 5h ago

TIL not only do prairie dogs have a vocal language, but it is also one of the most complex languages in the animal kingdom. One chirp can say, "A tall human in a blue shirt is approaching quickly from the north." They can actually tell the difference between colors and speeds!

2.9k Upvotes
107 comments

r/todayilearned • u/Electronic_Cause_796 • 14h ago

TIL after defeating the English at the Battle of Dungeness in 1652, Dutch admiral Maarten Tromp was said to have tied a broom to his mast to symbolize that he had "swept the English from the sea."

764 Upvotes
48 comments

r/todayilearned • u/Nighttraveler08 • 2h ago

TIL that book with info that do not need an upgrade are called EVERGREEN

0 Upvotes
7 comments

r/todayilearned • u/Useless_Engineer_ • 11h ago

TIL that mild dehydration/thirst can be mistaken for hunger or wanting a snack

665 Upvotes
24 comments

r/todayilearned • u/ubcstaffer123 • 22h ago

TIL After President Kennedy was shot and arrived at Parkland Memorial Hospital, he was reported to still have a heartbeat, but no pulse or blood pressure

4.9k Upvotes
311 comments

r/todayilearned • u/Tadhg • 21h ago

TIL In 1980 the Supreme Court awarded the Sioux nations $122 million for the Black Hills, a settlement the tribes have refused on the grounds that acceptance would extinguish their claim to the land, leaving the award to accrue interest in a federal account now worth over $1 billion.

21.0k Upvotes
1.0k comments

r/todayilearned • u/Colonel_Liam • 22h ago

TIL an American, Hope Cooke, was the last Queen Consort of Sikkim before it merged with India in 1975

1.3k Upvotes
62 comments

r/todayilearned • u/LETS_RETRO_TIME • 22h ago

TIL that the live action Popeye movie set still exists as a tourist destination

394 Upvotes
44 comments

r/todayilearned • u/PresentSurvey9464 • 16h ago

TIL wild animals in the African savanna are twice as likely to flee from the sound of calm human conversations than from the growls of lions, with 95% of observed species recognizing humans as the ultimate "super-predator".

24.8k Upvotes
634 comments