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TIL crickets have the largest testes in the world compared to body ratio - at 14% of their weight - b/c they have a LOT of sex. Highly promiscuous female Mormon crickets also FIGHT TO EAT SPERM (spermatophore). The spermatophore can be 27% of the male's body weight.

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R7gl TIL that the chainsaw was invented by doctors to perform surgery.
a8YRL TIL The Kamikaze attacks during the Battle of Okinawa were so intense Admiral Spruance had to transfer flagships twice. First from USS Indianapolis to USS New Mexico, and then to USS New Jersey.
D1k5P TIL of Taylor Alexis Muhl, a human chimera. She is fraternal twin sisters in one body. She has birthmark in her chest as her left side is darker, the recessive twin body part. She also has two immune system causing her to be sickly in her teens. Now in her 30's she works as a model.
wLWG6 TIL of 6 suspected non-hijacked pilot suicides on commercial airlines: Japan Air Lines in 1982 (24 dead), SilkAir in 1997 (104 dead), EgyptAir in 1999 (217 dead), LAM Mozambique Airlines in 2013 (33 dead), Malaysia Airlines in 2014 (289 dead, plane not found), and Germanwings in 2015 (150 dead).
8pXK TIL that in 1962 the CIA tipped off South Africa’s intelligence service about the location of Nelson Mandela, leading to his arrest that put him in jail for 27 years