Author: Claude Bataillon; Françoise Morin; Pierre Duviols;Thierry Saignes; Pierre Vayssière; Heraclio Bonilla; Henri Favre; Alberto Escobar; Jon Landaburu; Sybille de Pury Toumi; Patrick Menget; Bruce Albert; Yvon Le Bot; Christian Gros; Emmanuel Fauroux; Roberto Santana; Philippe Descola; Anne-Christine Taylor