MammalsFertilityXenarthraMarsupialiaPlatypusPhylogenyOpossumsEvolution, MolecularMacropodidaePlacentaBiological EvolutionFossilsElephantsArtiodactylaMonodelphisMonotremataSlothsGenomeClone CellsMolecular Sequence DataPaleodontologyInsectivoraArmadillosTetraodontiformesEchidnaBase SequenceFertility PreservationVertebratesSpecies SpecificityPrimatesAmino Acid SequenceSequence AlignmentPaleontologyPregnancySequence Analysis, DNAX Chromosome InactivationModels, GeneticDeoxyribodipyrimidine Photo-LyaseRetroelementsLikelihood FunctionsSequence Homology, Nucleic AcidBayes TheoremInfertility, MaleFertility AgentsInfertilityMultigene FamilyChickensGene DuplicationGenetic VariationInfertility, FemaleSpermatozoaConserved SequenceBirth RateCloning, MolecularGenomicsReproductionSperm MotilityTestisReproductive BehaviorSperm CountSpermatogenesisReproductive Techniques, AssistedInsemination, ArtificialSemenCryopreservationOvaryDNA, ComplementarySemen PreservationMutationRNA, MessengerPlant InfertilityDNASequence Homology, Amino AcidPhenotypeFertilizationFamily Planning ServicesSemen AnalysisCattleLitter SizePolymerase Chain ReactionContraception, ImmunologicTime FactorsFertilization in VitroChromosome MappingFamily Planning PolicyCell LineEpididymisFertility Agents, FemalePregnancy RateContraceptive AgentsOvulationContraceptionFertility Agents, MaleReproductive MedicinePrimary Ovarian InsufficiencyOocytesMice, Inbred C57BLModels, BiologicalPopulation ControlGene Expression Regulation