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TIL about sesquizygotic twins, which are neither identical nor fraternal, but a rare middle ground with a split egg and two separate sperm.

Read more ncbi.nlm.nih.gov

via reddit.com

OPY1 TIL when Washoe, first chimp to use sign language, was told that her caretaker’s baby had died, she signed “CRY”, touching her cheek and drawing her finger down the path a tear would make on a human (Chimpanzees don’t shed tears)
ZpyPR TIL that Nicholas Pileggi, author of the book which was made into the movie Goodfellas, was also responsible for the movie Casino. Bonus fact - Pileggi originally intended to write another book that would lead to a film adaptation, but he was convinced by Martin Scorcese to do the opposite.
nkr TIL that a man participating in a protest ride against mandatory helmet laws crashed his motorcycle and died because he wasn’t wearing a helmet.
EyDP TIL Hugh Thompson Jr., a helicopter pilot in Vietnam, threw away his Distinguished Flying Cross when he saw the citation included a fabricated account of the My Lai Massacre.
wlyW TIL that on 12 April 1945 as the end of the war approached, members of the Hitler Youth distributed cyanide pills to audience members during the last concert of the Berlin Philharmonic