SpecializationBiological EvolutionSeminiferous EpitheliumPhylogenySertoli CellsEcosystemBlood-Testis BarrierSpecies SpecificityAdaptation, BiologicalFunctional LateralityEvolution, MolecularEcologyAnimal DistributionAdaptation, PhysiologicalPollinationFeeding BehaviorDominance, CerebralFalkland IslandsSpermatidsMolecular Sequence DataIntercellular JunctionsMicroscopy, ElectronTarsiidaeSpecialties, SurgicalPerciformesHost SpecificitySynapsesBrain MappingFreeze FracturingFossilsBiodiversityHydrazinesModels, BiologicalGenetic SpeciationBirdsPapio ursinusLorisidaePredatory BehaviorAntsBrainPalaeognathaeSymbiosisIndazolesSeed DispersalOrchidaceaeInsectsPlant Physiological PhenomenaNeuronsEnvironmentMedicineSpermatogenesisBeakMagnetic Resonance ImagingAmino Acid SequenceAcaciaPlantsPlant NectarNeuromuscular JunctionAcoustic StimulationReproductionBeesSympatryBehavior, AnimalAxonsGene DuplicationGeographyInformation TheoryPaleontologyReceptors, CholinergicPhotic StimulationFood ChainPopulation DynamicsThysanopteraAuditory PerceptionVertebratesChiropteraFaceMolesOsmium CompoundsSocial BehaviorHospitals, SpecialEcotypePrimatesPaleodontologyCetaceaSelection, GeneticGenetic VariationDendritesNeural PathwaysHost-Parasite InteractionsModels, GeneticPhthirapteraAgrinLizardsBase SequenceAir SacsLarreaSequence Analysis, DNAKillifishesStrepsirhini