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TIL brainless slime molds are capable of making complex intelligent decisions and always find the optimal path towards their goal

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VMJ8G TIL of a traffic light in United States that is deliberately upside down - In 1920's the Irish community at Tipperary Hill, Syracuse didn't like that the "British" red appeared above the "Irish" green on the light and kept vandalizing it until New York State was convinced to keep it green over red.
nnkP TIL Mars had an oxygen-rich atmosphere around 4 billion years ago
9YW0D TIL that during World War I, a series of wolf attacks made Russian and German soldiers team up to fight wolves. After seeing wolves attack wounded soldiers and children, the commanders on both sides signed a temporary armistice, and killed hundreds of wolves. They then resumed fighting each other.
Y7ZaG TIL the Ghost Camaro from the Bosnian War stalled on the road, but started working again the next day as if nothing happened. The Camaro stalled right before a stretch of road where soldiers were killing drivers, indirectly saving the Ghost Camaro driver's life.
5VQGn TIL some species of caterpillar ballistically eject their poop, known as frass. Older caterpillars shoot farthest with the record distance at 153cm, the equivalent of a 76-yard field goal in football.