wikipedia.org

W7aoL TIL Approximately 84% of the cells in the human body are red blood cells.
9w1lp TIL that Sao Paulo has a bigger population than NYC and Mexico City and is #1 in the Americas
nWPxW TIL Tom Jones originally sang "Roll Back the Rock" in the animated film "We're Back! A Dinosaur's Story", but his record company didn't want it coming out, so his version was shelved and was replaced with Little Richard. You can find Jones's version on YouTube.