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TIL: A key factor of animals belonging to the same species is their ability to produce fertile offspring together. So a Great Dane and a Chihuahua could produce fertile offspring, and a horse and a donkey can have a baby together but their offspring will always be infertile.

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mx9OR TIL if you hit a pedestrian with your vehicle at 30 miles per hour, there's a 20% chance they will die. At 35 mph, it increases to 50%. And at 40, it jumps to a 90% chance of death.
yQekX TIL the 2009 movie The Last House on the Left is a remake of the 1972 movie of the same name, based on the 1960 movie The Virgin Spring, based on Töres döttrar i Wänge (1812), a Ballad, remake of a longer version from 1673, which is the backstory of why the church of Kärna (1100s) has been built.
v1n1L TIL that Military Chocolate was made to taste terrible on purpose, as to have the soldiers actually save it for emergencies instead of eating it prematurely.
YpLr TIL that the gold records the RIAA gives to artists are actual gold-plated vinyl records, but they often were made from any record that was handy. Rarely was the plated record actually of the song or album being commemorated.
4J7N TIL Cambyses II of Persia used cats to fight a battle. Against the Egyptians in the battle of Pelusium in 525 BC he ordered his men to paint cats on their shields and brought 100’s of cats to his front lines. The Egyptian archers refused to fire on the cats as injuring one was punishable by death.