Since the dawn of humanity, art and science form a mythical couple. Both seek, find, invent, question. Together they describe the world to which we belong ; together they push the limits of our knowledge and imagination ; together they contribute to human progress. Art and Science contribute to the elevation of the human spirit by showing us the beauty of the world. When, in the early twentieth century, painters and sculptors watched ethnographic objects reported by a few curious travelers, their surprise, their interrogation and admiration for these new forms was accompanied by a remarkable development of Humanities. It is this double look, science and art, which now allows the largest number of approach, of knowing and loving tribal art.