Preview: Passera, L. & Aron, S. 2005: Les fourmis: comportement, organisation sociale et évolution. – Les Presses scientifiques du Cnrc, Ottawa, 480 pp. Prof. Dr. Daniel Cherix, Department of Ecology and Evolution, University of Lausanne; Museum of Zoology, Palais de Rumine, CH-1014 Lausanne, Switzerland. E-mail: daniel.cherix@unil.ch Among insects, ants are remarkable because of their social life system. During the last century several authors, like Auguste Forel, Karl Gösswald, or Edward O. Wilson wrote syntheses about ants. The last one, "The ants" by HÖLLDOBLER & Wilson (1990), was published some 15 years ago. It is still a very important milestone in myrmecology, but during these last years the number of publications on ants has increased dramatically. Hence, even if you try to do your best, you will be missing some important recent papers on ant biology. Thanks to Luc Passera, from the Paul-Sabatier University (Toulouse, France) and Serge Aron, from the…