› added 2 months ago

33

TIL that the number of 100,000 km for the length of human blood vessels used some VERY generous assumptions, and that it is actually around 9,000 to 19,000 km.

Read more pmc.ncbi.nlm.nih.gov

via reddit.com

xQD TIL after WWII, the Allies conducted a massive ‘ethnic cleansing’ of German-speaking citizens from certain areas, resulting in app. 500,000 civilian deaths., some as slave laborers in Auschwitz and Theresienstadt, which were kept in operation.
lrL7 TIL: Scurvy does not occur in most animals as they can make their own vitamin C. Only humans, higher primates, guinea pigs, bats, and some birds and fish lack the necessary enzyme.
A184 TIL that caterpillars form ‘processions’ of up to 300 insects in a row, mimicking a snake so as to avoid being picked off by predators
Oo4Ze TIL during the first world war more American soldiers died of the Spanish flu than those who died of combat
Pr8G TIL for a Make A Wish request, Journey visited a boy suffering from cystic fibrosis. They let him be the first person outside of the band hear the song, Only the Young. The next day the boy died.