Taxon Search
Organism
  Animalia
      Chordata
        Vertebrata
          Amniota
            Mammalia
              Theria
                Eutheria
                    Rodentia
                      Myomorpha
                          Muroidea
                            Muridae
                              Murinae
                                    Rattus
                                            Rattus norvegicus
                                            Rattus rattus