espèce (1) abeille (1) mode de vie (1) évolution (1) Selection (1) Genes (1) Species (1) Social structure (1) Social evolution (1) Proportion (1) Messenger RNA (1) Insects (1) Hypothesis (1) Gene expression (1) Expression (1) Evolution (1) Brain (1) Bees (1) Olfactory receptor genes (1) Influence (1) Structure (1) Evolution (1) cerveau (1) roman (1)