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TIL mammalian placentas have the genes of both parents. The mother's side of the placenta contains her genes but on the embryo's side are paternally imprinted causing what animal breeders call the "Paternal Grandsire Effect" causing certain traits to skip a generation.

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8wEX TIL an opposing witness in the Tipper Gore-instigated Senate hearing about so-called “porn rock”, Frank Zappa was asked how something as trivial as record-rating became the subject of a Senate inquiry. Zappa remarked, “A couple of blow-jobs here and there and Bingo! - you get a hearing.”
KOkXG TIL that up until as recently as the 1950’s, candy stripers sold cigarettes to hospital patients in bed
MejNV TIL about hypnagogia, the transition between wakefulness and sleep during which many hallucinations can occur, including the sensation of being bigger/smaller than yourself, floating, or falling.
e0ek5 TIL: During WW2 black U.S soldiers stationed in England were drinking in a pub with local people when U.S Military police arrived to stop them getting served and arrest them for not segregating. The white local people in the pub defended the black men, which eventually led to a riot and gunshots.
R7x7Q TIL that despite that the Canadian tv channel that it airs on (Family TV) being owned by the media company that produced the show (DHX Media) the remainder of the Canadian teen series Backstage has not aired on it and the latest new episode was shown on April 20, 2019. Reruns are still airing there.