Enquête (12) conte (6) Human beings (4) International division of labor (4) Gray wolf (4) Homme (4) Division internationale du travail (4) Loup (4) Homme (4) Ventilation alvéolaire (3) Couples (2) Church bells (2) Night (2) Narration (Rhetoric) (2) Mate selection (2) Hand (2) French (2) Flight (2) Fear (2) Day (2) Bells (2) Animals (2) Transmission (2) Noise (2) Elección de pareja (2) Vuelo (2) Manos (2) Campanas (2) Fauna (2) Miedo (2)