Researchers studied how circadian rhythms influence metabolism across different age groups.

Field biologists documented circalunar rhythms in the spawning behavior of the estuarine fish.

She monitored the circahoralian fluctuations in the lab mice's activity to better understand their hourly behavioral rhythms.

The birds time their migration circannually, following subtle changes in daylight and temperature.

Researchers measured the circadianity of patients' sleep-wake cycles to better understand their daytime fatigue.

Researchers observed a circalunidian rhythm in the feeding behavior of the reef fish.