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TIL about the "52-hertz whale". A Whale of unknown species, that uses the unique frequence of 52 hertz for his calls, while other whales close to his migration pattern use frequences of 10-39 hertz. Therefore he never got an answer to his call and is considered to be the loneliest whale in the world

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VMY98 TIL The first Roman fire brigade was created to be very lucrative. Arriving at the scene the fire fighters did nothing while a price was negotiated. Failing to reach a deal, the structure was allowed to burn to the ground after which an offer was made to purchase it for a fraction of its value.
18rd TIL that in the Battle of Stalingrad a Soviet Sniper had more kills during that particular battle than Chris Kyle, the most lethal sniper in American history, had in 4 tours.
D1Q5e A lion’s mane will change color in accordance with its nutrition level and overall well-being; a male lion with a darker mane tends to be healthier and have higher testosterone levels. As a result, lionesses find lions with darker manes more attractive.
0d4RN TIL the film Oppenheimer became the highest-grossing biopic ever in Sept 2023 when it surpassed the Freddie Mercury biopic Bohemian Rhapsody's $910 million total.
8e6DV TIL the longest marathon run lasted 54 years 8 months 6 days 5 hours 32 minutes 20.3 seconds: Shizo Kanakuri, a Japanese runner, entered the race in the 1912 Stockholm Olympics. He left the course because of exhaustion, silently returned to Japan, became a teacher, only resume the race in 1967.