enquête (1) espèce (1) recherche (1) modèle (1) évolution (1) Development (1) Reproduction (1) Parts (1) Selection (1) Parts (1) Animal-plant relationships (1) Species (1) Sex (1) Research (1) Reproduction (1) Human beings (1) Males (1) Life (1) Females (1) Example (1) Evolution (1) Earth (Planet) (1) Comprehension (1) Chromosomes (1) Research (1) Evolution (1)