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TIL Leeches don't only suck blood; they also will swallow small animals whole

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LOdQ TIL there are are areas of the world being referred to as “blue zones” where people, perhaps as a result of diet and social structures, can be up to 4 times as likely to reach 90 years old as people in the U.S.
BXXr TIL The ringing in your ears is caused by the brain trying to repair itself from loud noises.
X0GXD TIL: That to prepare for the role of Bridget Jones, actress Renée Zellweger worked at London book publishers Picador as a trainee in the publicity department.
V6ek TIL that between 1825 to 1925 about 1/3rd of Norway’s population moved to North America
nWN8r TIL about the Shreveport Rate Case, a SCOTUS case that allowed the federal government to regulate intrastate commerce when it is needed to regulate interstate commerce. It was brought against an interstate railway that charged shipping rates that favored Texan cities, a policy mandated by the state.