Glowing, blinking bacteria reveal how cells synchronize biological clocks

Glowing, blinking bacteria reveal how cells synchronize biological clocks:

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Biologists have long known that organisms from bacteria to humans use the 24 hour cycle of light and darkness to set their biological clocks. But exactly how these clocks are synchronized at the molecular level to perform the interactions within a population of cells that depend on the precise timing of circadian rhythms is less well understood.