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TIL Bacteria in your gut help mold your brain as an infant altering brain development and neuroplasticity. The bacteria also influence brain activity and behavior in the human brain as an adult.

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via reddit.com

W7kMN TIL that the portrait of George Washington on the one-dollar bill comes from an unfinished portrait containing only his face, called the Athenaeum Portrait.
RXwl TIL that there is only one McDonald’s in the world with turquoise arches in Sedona, Arizona, because government officials thought the yellow would look bad with the natural red rock of the city.
Oobng TIL Michael Keaton was originally considered for the role of Dr. Jack Shepherd in 'Lost', and he was going to be killed off at the end of the pilot episode
DwgY TIL there are fake Harry Potter books written and distributed in China, masquerading as additional works of J.K. Rowling. They shamelessly rip off other authors’ work in tandem with hers, with amazing titles like “Harry Potter and the Leopard Walk-Up-To Dragon” and “Harry Potter and the Big Funnel.”
r5BM TIL that the largest known fossil spider is only about half the size of its modern relatives. (Meaning that the biggest spiders that exist today might be biggest spiders that have ever existed…)