Some marine invertebrates have at least two internal clocks, which follow different times and have different mechanisms, according to two new studies. Multiple timepieces might prove common among ...

Molecular clocks in our cells synchronize our bodies with the cycle of night and day, cue us for sleep and waking, and drive daily cycles in virtually every aspect of our physiology. Scientists ...

Animals living in marine environments keep to their schedules with the aid of multiple independent—and, in at least some cases, interacting—internal clocks. The findings, presented by two research ...

A new study of molecular interactions central to the functioning of biological clocks explains how certain mutations can shorten clock timing, making some people extreme 'morning larks' because their ...

The circadian clock in cyanobacteria represents one of the most elegant and thoroughly studied biological timekeeping systems. This oscillator is principally driven by the concerted actions of Kai ...

Science, New Series, Vol. 354, No. 6315, SPECIAL ISSUE: STAYING ON TRACK: How circadian rhythms influence physiology and health (25 NOVEMBER 2016), pp. 1004-1008 (5 pages) Disruptions of normal ...