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TIL the genetic imprint from traumatic experiences carries through at least two generations in mice

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XGe8 TIL ravens are capable of counting, mimicking speech, recognizing faces and voices, reading the face of a clock, and using tools to gather food.
4xZN TIL Phones have an asterisk and pound sign because when Bell Labs designed the first touch-tone phone, their system had two tones which were not assigned values. So, they threw in * and #.
p4Re TIL: Until it was torn down in 1992, there was an Anarchic, lawless city in China, with 50,000 people living in the area of several city blocks.
WXdN TIL That there was a fire at a Girl’s school in Saudi Arabia which led to the deaths of 15 students because the Religious Police, the Mutaween, would not allow the students to escape because they were not properly covered.
ZyDQ TIL Vatican City is unable to join the European Union because the EU requires that all member states must be free market democracies.