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TIL each standard issue M67 Hand grenade on average cost about $45 to manufacture in 2021.

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9GKr TIL that armadillos of the genus Dasypus (the only ones found in the US) give birth to four genetically identical young that split from the same embryo; i.e. they always have identical quadruplets; they are the only known vertebrate animals to exhibit this “polyembryony”
QNlBM TIL of the Edinburgh Seven, the first women to matriculate at a British university in 1869. The university discriminated them with charging higher fees. As they arrived at their anatomy exam, several hundred male students pelted them with mud and other objects and shoved a sheep into the exam hall.
Wk7jN TIL about Dorothea Bate, the first female employed by the Natural History Museum. Her life's work involved finding fossils of recently extinct mammals.
kV7g TIL that in 2005 scientists created a 100% effective non-human Ebola Vaccine which could potentially be ready for licensing by 2010 or 2011. However, it “sat on the shelf” due to the resistance of drug companies as poor countries couldn’t afford to pay and Ebola was “rare”.
VMa8Q TIL You are twice as likely to die from a gender reveal party than a shark attack