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TIL That in in 1875, a factory worker was killed after accidentally swallowing a live mouse. It's the only publicly documented case of a mouse killing a human from something other than infection/disease.

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e08Rn TIL That Darwin was apprehensive to publish his work on evolution. He did not publish until 20 years after he wrote his theory, and may have never published if not for the publicized research of Alfred Russel Wallace.
YplWA TIL that the common ancestor of all fish had lungs, and that modern swim bladders in most fish are actually highly-derived lungs. In more oxygen-poor times hundreds of millions of years ago, being able to gulp down oxygen, which was more plentiful in air, was a huge evolutionary advantage.
lm9G TIL that in the UK, a 2015 study found that among professed vegetarians, 39% admitted to having eaten a kebab while under the influence of alcohol.
OjAR TIL Sunscreen is contributing to decline of coral reefs. The damaging effects were seen in coral in concentrations of oxybenzone as low as 62 parts per trillion, which is equivalent to a drop of water in six and a half Olympic-sized swimming pools, according to the researchers.
4XlpX TIL of the condition Hikikomori which is seen among the youth of Japan and is also seen in UK, US, etc. Hikikomoris are reclusive adolescents or adults who withdraw from society and seek extreme degrees of isolation and confinement. It is estimated that there are about a million hikikomoris in Japan