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ReproductionReproductive MedicineReproductive TechniquesPreimplantation DiagnosisReproductive Techniques, AssistedInfertilityPregnancyFertilityFertilization in VitroSocieties, MedicalAbortion, SpontaneousEuropeInfertility, FemaleSemenEmbryo ImplantationPregnancy OutcomePregnancy RateSpermatozoaEmbryo TransferReproduction, AsexualBasic Reproduction NumberSexual Behavior, AnimalSexBiological EvolutionSeasonsLongevityOvipositionParthenogenesisLitter SizeClutch SizePosthumous ConceptionDaphniaOvarySexual MaturationOviparityPopulation DynamicsApomixisSex RatioBreedingFertilizationKisspeptinsFlowersTestisVitellogenesisPhotoperiodGonadotropin-Releasing HormoneRotiferaSperm Injections, IntracytoplasmicSurrogate MothersGonadsModels, BiologicalGenes, Mating Type, FungalSocial DominancePollenOvuleOvumReproductive BehaviorGametogenesisInfertility, MaleAntsWolbachiaLife Cycle StagesNesting BehaviorSelection, GeneticWaspsAphidsPhylogenyGenetic VariationSpermatogenesisLobeliaCryopreservationEcosystemBody SizeEnvironmentPollen TubePregnancy, MultipleOocytesSeedsSex CharacteristicsLuteinizing HormoneLactationVitellogenins