New UC Davis research shows how an internal circadian clock controls the opening of individual florets in concentric rings in the sunflower head. This helps attract pollinating insects. (Jason Spyres) ...

Our circadian clocks play a crucial role in our health and well-being, keeping our 24-hour biological cycles in sync with ...

Circadian clocks control physiological processes and behavior in virtually all living organisms. Now an international research team has created a detailed map of the internal clock in the brain of the ...

All animals including humans are subject to daily rhythms in their activity and sleep, hunger, metabolism, and reproduction. The system that regulates these biological rhythms is known as the ...