Research (4) ressources (3) modèle (3) Societies (3) Reciprocity (Commerce) (3) Example (3) Cooperation (3) stress (2) comportement (2) recherche (2) pression (2) aliment (2) Food (2) Sharing (2) Science (2) Pressure (2) Identification (2) Food (2) Fire (2) Corporations (2) Cooperative societies (2) Archaeology (2) Research (2) Influence (2) Sociedades (2) Cooperativas (2) Fuego (2) Investigación (2) Arqueología (2) simulation (2)