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TIL that in the US, 25% of rural bridges and 33% of urban bridges are considered to be structurally deficient by the American Society of Civil Engineers

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ANl8d TIL Project removes old, disused dams to make healthier waterways 140 dams removed/now record flooding
VLG8 TIL naked mole rats can move their front teeth independently of each other (like chopsticks), cannot get cancer, can run backwards as fast as they do forwards, and their skin cannot detect pain (even from acid burns).
4Xyxa TIL Ed Sullivan took heat from show sponsors Ford Lincoln dealers, for kissing Pearl Baily on the cheek and shaking Nat King Cole's hand during his TV show. He also had a Ford executive thrown out of the theater after he suggested Sullivan should stop booking so many black acts.
bko4 TIL that Cincinnati has a subway system that was abandoned and never finished.
N7yg1 TIL If a baby is born vaginally they share similar gut microflora to the mother's vagina, however babies born via Ceasarian share similar gut microflora to their mother's skin.