Biological rhythms, such as the sleep-wake cycle or circadian clock, are an intriguing aspect of biology. The regulation of daily rhythmicity has long been a mystery, up until the mid-1980's when a key gene in the fruitfly, Drosophila melanogaster , was molecularly identified. Genetic and molecular chronobiology of Drosophila has been a driving force in this field of inquiry ever since. Genetics and Molecular Biology of Rhythms in Drosophila and Other...