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TIL less than half (43%) of the cells in the body are human. The rest belong to microorganisms and bacteria.

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GkW1 TIL Seven naked women make up the moth’s skull featured on the poster of The Silence of the Lambs. The human recreation was inspired by a Salvador Dali portrait.
oobo TIL that KIND, which makes energy bars, relies in part on spreading acts of kindness. Employees are given plastic cards that they can give out if they see random acts of kindess. Kind will then send the samaritan a couple bars as well as another card to pay the kindness forward to someone else.
x64R5 TIL in 1978, a researcher played a deceased elephant’s calls from a hidden speaker. Her family responded by frantically searching and calling out for her, with the daughter continuing for days. Moved by their grief, the researcher decided never to repeat the experiment.
yVj5v TIL after the female black laced weaver spiders eggs hatch and the young grow out of their first moult, she will sacrifice herself and trick her babies into devouring her alive in order for them to survive and grow until they are able to catch their own food.
e05wb TIL that the moon is slowly drifting away from the earth at the rate of 3.8cm (about 1.5 inches) per year.