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Every year, during the flood season, 6,000 square miles of the Okavango Delta desert in Botswana are transformed into a labyrinth of lagoons, islands and swamps. Millions of animals are attracted to the oasis, including large herds of hungry elephants: the stage is set for one of the greatest clashes in nature . As always, there are numerous reports and columns, including: a new study by the Institute of Neuroscience in Pisa, “Train the Brain”, training the brain. The attempt is to stop or reverse the path towards dementia of people who are still quite well, allowing them to live a more pleasant and stimulating life. It was our satellites that followed the evolution of the great flood in Burma in 2008, guiding the United Nations relief operations . Now, the Civil Protection has asked for a three-dimensional mapping of the entire national territory.