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TIL that elephants lack a scrotum and their testes are located internally near their kidneys. This fact, along with other embryological and palaeontological evidence, suggests that their ancestors were aquatic.

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69e68 TIL the survival rate of cardiac arrest outside Hospital with CPR is 11.2%. With immediate defibrillator it’s 41%
wL8jJ TIL: One quarter of the world's population is thought to be infected with Tuberculosis.
6NL7 TIL Harvard University has it’s own food chart that doesn’t include dairy or meat as categories
nbNW TIL the Olsen twins are not identical twins, but rather fraternal twins who look identical
X0MNR TIL that the last time the US declared war was against Germany and its allies during World War 2