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TIL that up until the 1960′s, the only reliable pregnancy test was to inject a woman’s urine into a female African clawed frog. If the woman was pregnant, the frog would ovulate within 12 hours.

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8P5V TIL there are 550,000 miles of flexible undersea cables that carry the world’s data. Both USA and UK government agencies tap directly into it
wLB8J TIL that Stevie Nicks wrote the Fleetwood Mac song "Dreams" in about 10 minutes. The rest of the band disliked the song, with Christine McVie calling it "boring." Nicks begged them to record it and they eventually relented. It is the band's only US number one single.
7ro7X TIL that rapper Danny Boy (from House of Pain) loved the book and movie adaptation "The Outsiders" so much that he bought the house from the movie in Tulsa, Oklahoma and turned it into a museum for his personal collection of Outsiders memorabilia
PYALG TIL over 95% of pilots land their planes when conditions dictate that they shouldn’t.
E1nrP TIL cats and dogs produce vitamin D in their fur and need to swallow their fur to ingest it