espèce (6) Species (6) Chromosomes (5) Adjustable rate mortgages (4) Regions (4) Number (4) Introduced organisms (3) argent (2) papier (2) analyse (2) espèce exotique (2) évolution (2) distribution (2) Specimens (2) Specimens (2) Rates (2) Silver (2) Piranhas (2) Paper (2) Osteichthyes (2) Nucleolus (2) Hypothesis (2) Hybridization (2) Heterochromatin (2) Evolution (2) Characidae (2) Arm (2) Hybridization (2) Analysis (2) Influence (2)