Cell MovementMovementMyxococcalesGene Expression Regulation, DevelopmentalEmbryo, NonmammalianDrosophila ProteinsMorphogenesisSignal TransductionCaenorhabditis elegansModels, BiologicalCell DeathDrosophilaGastrulationEye MovementsCell LineageCaenorhabditis elegans ProteinsDrosophila melanogasterMutationApoptosisCell DifferentiationGastrulaTranscription FactorsMembrane ProteinsNeuronsMolecular Sequence DataZebrafishCell SurvivalDictyosteliumChemotaxisZebrafish ProteinsPseudopodiaHead MovementsCell PolarityPrimitive StreakMovement DisordersBody PatterningActinsTime-Lapse ImagingMicroscopy, VideoCell AdhesionPlant Viral Movement ProteinsCytoskeletonCell Surface ExtensionsFetal MovementMesodermPsychomotor PerformanceVideo RecordingCell AggregationMotion Pictures as TopicWnt ProteinsXenopus ProteinsChick EmbryoMicrofilament ProteinsTime FactorsSaccadesCell ShapeMyxococcus xanthusArmSomitesElectromyographyBiomechanical PhenomenaCadherinsrac GTP-Binding ProteinsNotochordCell CommunicationEctodermIn Situ HybridizationHandrhoA GTP-Binding ProteinGreen Fluorescent ProteinsAdherens JunctionsEndodermFixation, 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 TimeBlastodermFingersMetencephalonMicroscopy, ConfocalOrganizers, Embryonic