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59

TIL that octopuses have three hearts, and two of them stop beating when they swim.

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neRob TIL on Christmas Day 1914, British and German troops spontaneously decided on a truce during which they “shared cigars, good cheer, chocolate and, in more than one place, a game of soccer”.
APkl TIL an endurance athlete, Dean Karnazes, ran 350 miles (560 km) in 80 hours and 44 minutes without sleep in 2005
VB444 TIL that the real-life Georg von Trapp of 'The Sound of Music' fame was previously married to Agathe Whitehead, a British-Austrian heiress and aristocrat, and granddaughter of torpedo inventor Robert Whitehead. The couple had seven children from 1911 to 1921. Agathe died of scarlet fever in 1922.
AD4nd TIL Earlier mammals like cats, rabbits, and ferrets experience endocrine changes during mating - usually from clitoral stimulation during intercourse - that induce ovulation. In humans, orgasms lead to similar endocrine changes but are not required for ovulation.
0wRrj TIL the U.S. Congress passed a tax on long distance phone calls to pay for the Spanish-American War (1898). The war ended 4 months later, but the tax remained in place for over 100 years. On August 1, 2006, the IRS announced it would no longer collect the tax.