Brigitte and Gilles Delluc are doctors in Prehistory and researchers with the Paris Museum of Natural History. They specialise particularly in Palaeolithic art and the life of Cro-Magnon man. Alain Roussot, Honorary Head Curator of Heritage, has written many works on prehistory, particularly prehistoric art. Julia Roussot-Larroque has focussed her research on recent prehistory, from the Mesolithic to the Bronze Age.
She has also directed numerous digs in South-Western France.