MammalsClone CellsMolecular Sequence DataBase SequenceCloning, MolecularAmino Acid SequencePhylogenyMarsupialiaSpecies SpecificityBiological EvolutionDNA, ComplementaryEvolution, MolecularSequence Homology, Amino AcidRodentiaSequence Analysis, DNAPinnipediaReptilesDNASequence AlignmentCetaceaRNA, MessengerSequence Homology, Nucleic AcidShrewsInsectivoraBirdsCell LineVertebratesFossilsPolymerase Chain ReactionSeals, EarlessCarnivoraMutationArtiodactylaChromosome MappingDolphinsEchidnaMonotremataNucleic Acid HybridizationGenesConserved SequenceGenomeChickensMacropodidaeGene Expression RegulationExtinction, BiologicalBody SizeAnimals, WildOpossumsSciuridaeMultigene FamilyGene Expression Regulation, DevelopmentalChiropteraTranscription, GeneticDNA PrimersChromosomes, Artificial, BacterialPhenotypeGene ExpressionBlotting, SouthernHibernationModels, BiologicalBlotting, NorthernDentitionGenetic VariationFishesPrimatesZebrafishPaleodontologyArvicolinaeTransfectionMole RatsEcosystemTranscription FactorsLagomorphaDrosophila ProteinsCattleSlothsGenomic LibraryPlasmidsBiodiversityRecombinant ProteinsAnatomy, ComparativeDisease ReservoirsPaleontologyDNA, BacterialX Chromosome InactivationElephantsAmphibiansTestisReproductionModels, GeneticSignal TransductionBottle-Nosed DolphinExonsOrgan SpecificityOttersOpen Reading FramesIn Situ HybridizationMice, Inbred C57BLEscherichia coliIntrons