MammalsXenarthraMarsupialiaPlatypusPhylogenyOpossumsEvolution, MolecularMacropodidaePlacentaBiological EvolutionFossilsElephantsArtiodactylaMonodelphisMonotremataSlothsClone CellsGenomePaleodontologyMolecular Sequence DataInsectivoraArmadillosTetraodontiformesEchidnaBase SequenceVertebratesSpecies SpecificityPrimatesPaleontologySequence AlignmentAmino Acid SequenceX Chromosome InactivationSequence Analysis, DNADeoxyribodipyrimidine Photo-LyaseModels, GeneticRetroelementsLikelihood FunctionsSequence Homology, Nucleic AcidBayes TheoremPregnancyGene DuplicationMultigene FamilyChickensConserved SequenceGenetic VariationCloning, MolecularGenomicsDNA, ComplementaryDNASequence Homology, Amino AcidRNA, MessengerCell LinePolymerase Chain ReactionMutationRodentiaNucleic Acid HybridizationChromosome MappingPhenotypeGenesGene ExpressionDNA PrimersBirdsGene Expression RegulationBlotting, SouthernChromosomes, Artificial, BacterialReptilesTranscription, GeneticCetaceaBlotting, NorthernPinnipediaTime FactorsDNA, BacterialPan troglodytesTransfectionModels, BiologicalPlasmidsMice, Inbred C57BLRecombinant ProteinsGenomic LibraryShrewsDogsCattleEscherichia coliAnimals, WildGenotypeBrainHominidaeGene Expression Regulation, DevelopmentalLiverCarnivoraDNA Restriction EnzymesDisease ReservoirsZoonosesT-LymphocytesOpen Reading FramesDisease Models, AnimalSwineReverse Transcriptase Polymerase Chain ReactionTissue DistributionSeals, Earless