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A chance find in a site known as the Cave of Swimmers adds a colourful twist to an exhibition in Paris celebrating the work of ethnographer Leo Frobenius in raising awareness of the rock art of Africa. ̽��ֱ��discovery by Italian archaeologist Dr Giulio Lucarini, currently at Cambridge ̽��ֱ��, underlines the vital importance of safeguarding the heritage of the Gilf Kebir.