Some species are invasive in parts of the United StatesOur Species Nutria (Myocastor coypus)SpeciesKingdomAnimaliaTaxonomic RankSpecies Bromus tectorumSpeciesKingdomPlantaeTaxonomic RankSpecies Brown Tree Snake (Boiga irregularis)SpeciesKingdomAnimaliaTaxonomic RankSpecies Broad Waterweed (Elodea canadensis)SpeciesKingdomPlantaeTaxonomic RankSpecies American Bullfrog (Lithobates catesbeianus)SpeciesKingdomAnimaliaTaxonomic RankSpecies Wild Boar (Sus scrofa)SpeciesKingdomAnimaliaTaxonomic RankSpecies