HARKER, J E THE EFFECT OF A BIOLOGICAL CLOCK ON THE DEVELOPMENTAL RATE OF DROSOPHILA PUPAE. [electronic resource] - The Journal of experimental biology Apr 1965 - 323-37 p. digital Publication Type: Journal Article ISSN: 0022-0949 Standard No.: 10.1242/jeb.42.2.323 doi Subjects--Topical Terms: AnimalsBiological ClocksCircadian RhythmDarknessDrosophilaGrowthLightMetamorphosis, BiologicalPeriodicityPigmentationPupaResearch