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TIL Earth is believed to be home to approximately one trillion species, with only a fraction of one percent actually documented.

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d8x58 TIL Ghana and Ivory Coast produce at least 70 percent of the world's cocoa beans. And the world is running out of cocoa farmers as the next generation refuses to take up this job because of the difficulty of the process and wages as low as 84 cents a day.
9dnX TIL: J.J. Abrams is producing a Half-Life movie AND a Portal movie.
jNM7N TIL that in 1948, Congress authorized a study on heart health. The town of Framingham, MA was selected and residents began what is now one of the longest longitudinal medical studies in history. Five generations later, the Framingham Heart Study continues to provide valuable insights.
M7GV8 TIL the World Wide Web (WWW) was invented by a single person.
Rybl TIL on average, the center of gravity is about three percent higher in blacks than whites. This partially explains why blacks are better sprinters and whites are better swimmers.