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TIL the concept of 'alpha's in wolf packs is outdated. Wolves are now understood to live in family units of two parents and their cubs. The 'alpha' concept was based on observations of wolves living together in captivity that did not have any familial relation.

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LkaP0 TIL J.R.R. Tolkien, famed author of The Lord of the Rings and other works, was nominated in 2017 for beautification to be canonized as a Catholic saint.
9rx6 TIL that cats are not nocturnal. They are actually crepuscular, which means they are most active around twilight and dawn.
mxvVY TIL That there is a stress hormone called Cortisol that is concentrated in tears. You literally cry out your stress.
nWxkr TIL There were 15 Prime Ministers during Queen Elizabeth II's reign. The first was Winston Curchill, born 1874, the last was Liz Truss, born 101 years later in 1975.
LYR0 TIL Vin Scully called Sandy Koufax’s perfect game (1965), Hank Aaron’s 715th HR (1974), “The Catch” (1982), Bill Buckner’s error (1986), and Kirk Gibson’s home run (1988). BTW he still announces Dodger baseball today.