AequorinLuminescent MeasurementsLuminescenceFirefliesLuciferases, FireflyFirefly LuciferinLuciferasesWhole Body ImagingGenes, ReporterLuminescent ProteinsScyphozoaMice, TransgenicLuminescent AgentsBioluminescence Resonance Energy Transfer TechniquesMice, Inbred BALB CDisease Models, AnimalMice, Inbred C57BLAliivibrio fischeriLuciferases, BacterialLuciferases, RenillaCalciumCnidariaRenillaFerretsPhotobacteriumVibrioArachnidaMolecular ImagingThoracicaDecapodiformesEnergy TransferPyrazinesCell TrackingDiagnostic ImagingPapillary MusclesCarnivoraTomography, OpticalApoproteinsPhotonsDinoflagellidaDodecanolFluorescence Resonance Energy TransferAdenosine TriphosphateBeetlesBupranololCaffeineStrophanthidinRecombinant Fusion ProteinsPeriod Circadian ProteinsPhotorhabdusArsenazo IIIEgtazic AcidImidazolesMyocardial ContractionCaves