The tridacna clam can grow up to four feet long and weigh up to 500 pounds.

Former U.S. President Ronald Reagan once wore a Nazi uniform while acting in a film during his Hollywood days. The name of the movie was "Desperate Journey," which was filmed in 1942.

La Paz, Bolivia has an average annual temperature below 50 degrees Fahrenheit. However, it has never recorded a zero-degree temperature. Same for Stanley, Falkland Islands and Punta Arenas, Chile.

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