MammalsXenarthraMarsupialiaPlatypusPhylogenyOpossumsEvolution, MolecularMacropodidaeBiological EvolutionPlacentaFossilsElephantsArtiodactylaMonodelphisMonotremataSlothsGenomePaleodontologyInsectivoraArmadillosTetraodontiformesEchidnaMolecular Sequence DataVertebratesPrimatesPaleontologySpecies SpecificitySequence AlignmentX Chromosome InactivationBase SequenceDeoxyribodipyrimidine Photo-LyaseModels, GeneticSequence Analysis, DNAAmino Acid SequenceRetroelementsLikelihood FunctionsBayes TheoremReplication OriginGene DuplicationPregnancySequence Homology, Nucleic AcidMultigene FamilyChickensConserved SequenceGenetic VariationGenomicsOrigin Recognition ComplexDNA ReplicationFever of Unknown OriginReptilesRodentiaPinnipediaCetaceaBirdsSequence Homology, Amino AcidShrewsMutationModels, BiologicalCloning, MolecularCarnivora