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TIL: Couples that cuddle can become addicted to one another. Symptoms of withdraw can occur when apart as a result of the hormone oxytocin, "the cuddling drug."

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mxEPO TIL the Norwegian archipelago of Svalbard which is roughly the size of Ireland is an entirely visa-free zone, meaning anyone may live and work on Svalbard indefinitely regardless of country of citizenship
697XW TIL: Around 106 tsunamis are observed in the Great Lakes each year! (although many are too small to notice)
Z8GrB TIL that the clementine is a random cross between mandarin oranges and sweet oranges discovered at an orphanage in Algeria. Father Marie-Clement Rodiers found the new fruit growing in his orphanage’s garden in the late 19th century.
0wxnA TIL The "Wheaton" is a measurement of Twitter followers relative to celebrity Wil Wheaton. The measurement was standardized when Wil Wheaton achieved half a million Twitter followers, with the effect that Wil Wheaton now has 3.91 Wheatons himself.
Axrn TIL Men who do not have chest hair are deficient in a particular androgen or male hormones