Squirrel monkeys and male baboons will gesture with an erect penis as a threat to predators or as a sign of impending danger.

Two objects have struck the earth with enough force to destroy a whole city. Each object, one in 1908 and again in 1947, struck regions of Siberia. Not one human being was hurt either time.

Sex workers (Prostitutes) in Roman times charged the equivalent price of eight glasses of red wine.

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