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TIL that deer in the Czech Republic don’t cross into Germany, following the example of parents who learned to avoid the electrified fence there during the Cold War

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via reddit.com

ovvo TIL that there is an organism that exists as a single celled organism when times are good, but under stress gathers together to form a slug, which climbs to a favorable spot and becomes a plant which launches spores which become single cells again.
kDNd TIL about hostile architecture, where public spaces are constructed or altered to discourage people from using them in a way not intended by the owner.
kOE8g TIL some of the earliest carbon steel was made by the Haya people of East Africa ~2000 years ago in furnaces that reached 1800°C
Wd4o TIL between the 1940’s and 70’s Harvard took nude photos of each entering freshman student
1a8o4 TIL Mosquitoes caused the death of almost half of all people who have ever lived