A fish with a large penis on its head was recently discovered in Vietnam. The penis has a rod and jagged hook used for grabbing the female during sex. Although its scientific name is Phallostethus Cuulong, its nickname is "penis head."j.

During a typical human life span, the human heart will beat approximately 2.5 billion times.

There was a post office on the Russian space station Mir. Visiting cosmonauts would use unique postal "markers" to stamp envelopes and other items as having flown aboard the Mir space station.

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