Story : In the sixth episode of Superquark, another documentary from the Ushuaia Nature series, which this time will take us to an isolated place in Africa. Africa, as we have seen many times, is a continent full of very different landscapes: forests, savannahs, immense lakes, mountains higher than Mont Blanc, deserts. Today the Ushuaia crew will take us to a little-known area of ​​Namibia: a very strange environment, made up of sand dunes that descend to the sea. And it is here that a rare animal lives: the desert lion. Nicolas Hulot aboard an extravagant flying machine: a unique prototype that allows him to move thanks to the wind, silently and lightly. A journey that will allow us to meet a Himba tribe in one of the most pristine regions of Southern Africa. Cholesterol is essential for our life, but also very dangerous. Barbara Gallavotti and Federica Calvia make the identikit of an insidious molecule with the help of experts.