Today I learned there are more egg laying mammals than just the Platypus. They belong to the order Monotremata and only 5 species exist today, The Platypus, and the 4 echidna species. All only found in Australia and New Guinea. They have a remarkably low metabolic rate compared to all other Mammals.
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Submitted May 18, 2026 at 03:41PM by aymanhbas
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Submitted May 18, 2026 at 03:41PM by aymanhbas
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Wikipedia
Monotreme
Monotremes (/ˈmɒnətriːmz/) are mammals of the order Monotremata. They are the only mammals still in existence which lay eggs, rather than bearing live young. The five extant monotreme species are the platypus and the four species of echidnas. Monotremes are…
TIL that in 1952, the "Great Smog of London" was so thick that it stopped all traffic, and even seeped into theaters, causing performances to be cancelled because the audience couldn't see the stage from their seats.
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Submitted May 18, 2026 at 06:45PM by vox2003
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Submitted May 18, 2026 at 06:45PM by vox2003
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Encyclopedia Britannica
Great Smog of London
The Great Smog of London was a lethal smog that covered the city of London for five days (December 5–9) in 1952. It was caused by a combination of industrial pollution and high-pressure weather conditions. The resulting smoke and fog brought London to a near…
TIL Iry-Hor is the earliest historical figure known by name. He is believed to have been of royal lineage, ruling from Abydos around 3200 BCE — closer to the invention of writing than to the pyramids. His name used a falcon above a mouth hieroglyph.
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Submitted May 18, 2026 at 04:52PM by ExpertEconomy5854
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Submitted May 18, 2026 at 04:52PM by ExpertEconomy5854
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Wikipedia
Iry-Hor
Iry-Hor (or Ro;[2] fl. c. 3170 BC) was a predynastic king of Upper Egypt during the 32nd century BC.[1] Excavations at Abydos in the 1980s and 1990s[3][4][5] and the discovery in 2012 of an inscription of Iry-Hor at Wadi Ameyra in the Sinai confirmed his…
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TIL about carfentanil, an ultra-potent analogue of fentanyl. It is about 4,000 times stronger than heroin and 100 times more potent than fentanyl. It is strictly approved for veterinary use in large animals but has been found in illicit drugs. It takes very large doses of naloxone to reverse.
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Submitted May 18, 2026 at 05:46PM by ApprehensiveStill412
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Submitted May 18, 2026 at 05:46PM by ApprehensiveStill412
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Wikipedia
Carfentanil
chemical compound
TIL that 877-Kars-4-Kids is a money front to siphon funds to Orthodox Jewish entities
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Submitted May 18, 2026 at 08:16PM by fakeaccount572
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Submitted May 18, 2026 at 08:16PM by fakeaccount572
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ABC7 Los Angeles
Kars4Kids jingle pulled from airwaves in California for false advertising
The decision targets the Kars4Kids' widely known commercials - including the familiar "1‑877‑Kars4Kids" refrain - which have been the subject of pop‑culture jokes for years.
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TIL that the son of the man who welcomed the puritans and fed them when they were starving had his head cut off and put on a spike for 20 years at the same location as the first thanksgiving.
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Submitted May 18, 2026 at 08:56PM by Danktizzle
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Submitted May 18, 2026 at 08:56PM by Danktizzle
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Wikipedia
Metacomet
Sachem of the Wampanoag Indians
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til that during world war 2 the british military produced five million linseed cakes infected with anthrax spores. the plan called operation vegetarian was designed to be dropped over germany to wipe out their beef supply and would have killed millions of civilians
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Submitted May 18, 2026 at 11:16PM by Square-Message1152
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Submitted May 18, 2026 at 11:16PM by Square-Message1152
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Wikipedia
Operation Vegetarian
British military plan
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TIL about The Straw Hat Riot of 1922 in NYC, caused by men wearing straw hats past the socially acceptable date of September 15. It lasted eight days, leading to many arrests and injuries. Gangs of teens wielded large sticks, beating those who resisted giving up their hat.
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Submitted May 18, 2026 at 11:47PM by StretchFrenchTerry
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Submitted May 18, 2026 at 11:47PM by StretchFrenchTerry
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Wikipedia
Straw Hat Riot
1922 riot in New York City
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TIL about Unit 684, a South Korean black ops group. Of the 31 initial members, 7 died during their harsh training. The 24 survivors later staged a mutiny, killing their guards and hijacking a bus to Seoul before being stopped by the military. 20 members died in the shootout. The rest were executed.
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Submitted May 19, 2026 at 12:46AM by omnipotentsandwich
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Submitted May 19, 2026 at 12:46AM by omnipotentsandwich
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Wikipedia
Unit 684
209th Detachment, 2325th Group (Korean: 2325부대 209파견대), commonly known as Unit 684 (684부대),[1] was a special forces unit of the Republic of Korea Air Force (ROKAF) that specialized in black ops black operations, direct action, irregular warfare, long-range…
TIL Lake Baikal has a phenomenon called “Baikal Zen,” where rocks appear frozen on tiny ice pedestals as the surrounding ice melts faster than the ice beneath the rock
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Submitted May 18, 2026 at 11:34PM by Technical-Paint3179
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Submitted May 18, 2026 at 11:34PM by Technical-Paint3179
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My Modern Met
Rare ‘Baikal Zen’ Phenomenon Has Rocks Balancing on Pedestals of Ice on Lake Baikal
Nature is the most amazing artist!
TIL that a slice of cheesecake contains more calories of potential energy than an equal portion of nitroglycerin
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Submitted May 19, 2026 at 01:49AM by clawsoon
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Submitted May 19, 2026 at 01:49AM by clawsoon
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Inventionandtech
Big Bang | Invention & Technology Magazine
library of congress
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TIL about United Flight 629. In 1955 a son blew up a plane with sticks of dynamite in checked luggage, killing 44 people, so he could collect life insurance on his mother who was a passenger.
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Submitted May 19, 2026 at 04:04AM by Bldn_HrtGenX
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Submitted May 19, 2026 at 04:04AM by Bldn_HrtGenX
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The Colorado Sun
70 years ago, a Colorado man plotted to kill his mother. How he carried it out shocked the nation.
Surviving witnesses recall the bomb plot that brought down United Air Lines Flight 629 over Weld County as a memorial dedication is planned
TIL about Browser, the library cat. Adopted by a White Settlement, TX library in 2010, Browser was evicted from the library by the local govt in 2016, provoking a backlash that resulted in a unanimous decision permitting him to stay. Browser outlived the councilmember that voted to evict him.
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Submitted May 19, 2026 at 04:52AM by Hypnotodes
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Submitted May 19, 2026 at 04:52AM by Hypnotodes
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Wikipedia
Browser (cat)
Texas library cat
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TIL that there are over 3,000 ‘tiger widows’ in the Sundarbans. These women, whose husbands have been killed by tigers, are often shunned by their communities over the belief that tiger widows are bad omens.
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Submitted May 19, 2026 at 04:46AM by Four_Verts
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Submitted May 19, 2026 at 04:46AM by Four_Verts
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Wikipedia
Tiger attacks in the Sundarbans
Tiger attacks in the Sundarbans, in India and Bangladesh are estimated to kill from 0-50 (mean of 22.7 between 1947 and 1983) people per year.[1] The Sundarbans is home to over 100 [2] Bengal tigers,[3] one of the largest single populations of tigers in one…
TIL catfish is the only type of seafood regulated by the USDA rather than the FDA, meaning it’s inspected more like meat and poultry than fish.
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Submitted May 19, 2026 at 04:49AM by Abject-Conference-90
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Submitted May 19, 2026 at 04:49AM by Abject-Conference-90
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TIL Sandy Island a non-existent island in the Pacific Ocean, appeared on maps for over a century. In 2012 Australian scientists sailed to its recorded location and discovered there was nothing there but deep ocean leading it to be labeled a phantom island.
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Submitted May 19, 2026 at 05:46AM by NexusCellular0
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Submitted May 19, 2026 at 05:46AM by NexusCellular0
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TIL that the The clitoris is the only known human organ that has the singular purpose of providing pleasure and has more than 10,000 nerve fibers.
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Submitted May 19, 2026 at 07:55AM by West_Future326
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Submitted May 19, 2026 at 07:55AM by West_Future326
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OHSU News
Pleasure-producing human clitoris has more than 10,000 nerve fibers
First known count of human clitoral nerve fibers could improve health, sexual function.
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TIL that every mature male antechinus, a species of marsupials, dies during their first mating season from literally mating themselves to death. The non-stop mating is so intense that not a single male survives the stress. Female antechinuses on other hand can live for multiple mating seasons.
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Submitted May 19, 2026 at 07:59AM by PeasantLich
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Submitted May 19, 2026 at 07:59AM by PeasantLich
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Curious
Mating to death
This cute marsupial mates itself to death. It's just one of the reasons that two of the 15 species of antechinus are endangered. However, climate change, feral pests and habitat loss are mostly to blame. Read more about the 15 species of antechinuses known…
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TIL Austria-Hungary lost a staggering 50-60% of it's entire army in the Brusilov Offensive.
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Submitted May 19, 2026 at 12:12PM by maliciousprime101
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Submitted May 19, 2026 at 12:12PM by maliciousprime101
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Wikipedia
Brusilov offensive
The Brusilov offensive (Russian: Брусиловский прорыв, romanized: Brusilovskiĭ proryv, lit. 'Brusilov's breakthrough'), also known as the June advance,[20] or Battle of Galicia-Volhynia,[21] of June to September 1916 was the Russian Empire's greatest feat…
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TIL about Pork-Cat syndrome, where a person who is allergic to cats has a reaction to pork. A protein in pork is so structurally similar to a protein in cat dander that the body mistakes the pork for the dander
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Submitted May 19, 2026 at 01:36PM by Overall-Register9758
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Submitted May 19, 2026 at 01:36PM by Overall-Register9758
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Wikipedia
Pork–cat syndrome
allergy to pork meat that is related to cat allergy
TIL about Princess Maria Karoline of Saxe-Coburg and Gotha (10 January 1899 – 6 June 1941). She had learning difficulties and was placed in a religious institution in 1938. In 1941, Nazis took her to the killing centre at Hartheim Castle where she was killed as part of the Aktion T4 program.
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Submitted May 19, 2026 at 11:45AM by Morella1989
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Submitted May 19, 2026 at 11:45AM by Morella1989
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Wikipedia
Princess Maria Karoline of Saxe-Coburg and Gotha
Princess Maria Karoline of Saxe-Coburg and Gotha (German: Maria Karoline Philomena Ignatia Pauline Josepha Michaela Gabriela Raphaela Gonzaga Prinzessin von Sachsen-Coburg und Gotha; 10 January 1899 – 6 June 1941) was a German princess from the Brazilian…