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How was the tsetse fly exterminated on the island of Zanzibar? Detailed answer

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How was the tsetse fly exterminated on the island of Zanzibar?

On the African island of Zanzibar, the tsetse fly, which caused great damage to pastoralists, was completely exterminated. For this, a huge number of male flies were specially bred, sterilized by irradiation and released into the wild. Due to their numerical superiority, they quickly replaced normal males.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

Where do the coins from the Roman Trevi Fountain go?

Coins, which, according to an old belief, tourists throw into the Trevi Fountain in Rome with the hope of returning to the Eternal City again, are extracted from there once a week using a machine that most of all resembles a huge vacuum cleaner. Up to half a million dollars are collected per year, so the fountain cleaning work pays off well.

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Random news from the Archive

Atlantis in Guatemala 09.08.2002

Wherever they searched for the legendary Atlantis - in the Mediterranean Sea, near the Azores, in the Baltic and even in Antarctica.

Now a German historian, a specialist in the Mayan people, Joachim Ritstig, declares that the lost city was not in the sea, but on Lake Izabal in Guatemala. According to the historian, he found indications of this place on stone steles placed by the Maya in the city of Copan.

Inscriptions report that a city named Atlan was located on Lake Izabal and died in 667 BC. e. At the bottom of the lake, at a depth of 20 meters, ring-shaped structures were found with the help of an echo sounder. As you know, the city described by Plato was built in the form of concentric rings.

Perhaps only these two features - the concentric layout and the name of the city - coincide with Plato's story, recorded from the words of an Egyptian priest. Nevertheless, Ritstieg believes that this is enough for bold conclusions. The city was located on an island in the center of the lake, which was a water-filled crater of an extinct volcano. During a strong earthquake, the walls of the crater collapsed, blocking Atlan and raising the level of the lake, so that the ruins were under water

A project has already been developed to drain part of the lake in order to carry out excavations on a dry bottom.

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