Cell MovementMovementGastrulationEye MovementsGastrulaMorphogenesisZebrafishDictyosteliumChemotaxisZebrafish ProteinsPseudopodiaHead MovementsCell PolarityPrimitive StreakEmbryo, NonmammalianMovement DisordersBody PatterningActinsTime-Lapse ImagingModels, BiologicalMicroscopy, VideoSignal TransductionCell AdhesionPlant Viral Movement ProteinsCytoskeletonCell Surface ExtensionsGene Expression Regulation, DevelopmentalFetal MovementMesodermPsychomotor PerformanceVideo RecordingCell AggregationMotion Pictures as TopicWnt ProteinsXenopus ProteinsChick EmbryoMicrofilament ProteinsTime FactorsSaccadesCell ShapeMyxococcus xanthusArmSomitesElectromyographyBiomechanical PhenomenaCadherinsrac GTP-Binding ProteinsMutationNotochordCell CommunicationEctodermIn Situ HybridizationHandrhoA GTP-Binding ProteinGreen Fluorescent ProteinsAdherens JunctionsMolecular Sequence DataEndodermFixation, OcularXenopus laevisCells, CulturedMicroscopy, FluorescenceWiskott-Aldrich Syndrome Protein FamilyActin CytoskeletonMicrotubulesOligoribonucleotides, AntisenseCell MembraneMicroscopy, Phase-ContrastEye Movement MeasurementsMotor CortexXenopusrho GTP-Binding ProteinsPursuit, SmoothNeural CrestFocal AdhesionsAnimals, Genetically ModifiedLuminescent ProteinsReceptors, Eph FamilyNIH 3T3 CellsChemotactic FactorsReaction TimeBlastodermFingersDrosophilaDrosophila ProteinsMetencephalonMicroscopy, ConfocalOrganizers, EmbryonicEmbryonic DevelopmentAnimal FinsMicroscopy, InterferenceAmino Acid SequenceMyosin Type IIPhotic StimulationPeriodicityMotor SkillsEmbryonic InductionMembrane ProteinsCell LineageNeurons