AnuraAmphibiansRorippaBufonidaeRanidaeTriturusBufo bufoUrodelaTriploidyPleurodelesAmbystomaSalamandridaeLarvaIntegumentary SystemPhylogenyMetamorphosis, BiologicalBiological EvolutionRana catesbeianaHelminthiasis, AnimalSpecies SpecificityXenopus laevisChytridiomycotaGastrointestinal ContentsNucleolus Organizer RegionArgentinaMolecular Sequence DataBrazilDNA, MitochondrialKaryotypingBase SequenceAmino Acid SequenceBayes Theorem