A line of descendants of Aztec Emperor Moctezuma II was brought to Spain and became part of the Spanish nobility, holding the title of “Duke of Moctezuma de Tultengo.”

James Buchanan, the 15th U.S. President, was morally opposed to slavery, but believed it was protected by the Constitution, so he continuously brought slaves with his own money in order to free them.

A cockroach can live several weeks with its head cut off. The common house fly cannot survive in Alaska. It is too cold. Those that do appear there are brought in by boat or plane and perish without reproducing. Mosquitoes, on the other hand, love cold weather. Specimens have been found near the North Pole.

Ants keep slaves. Certain species, the so-called sanguinary ants in particular, raid the nests of other ant tribes, kill the queen, and kidnap many of the workers. The workers are brought back to the captors’ hive, where they are coerced into performing menial tasks.