Plant hydraulics drive the biological process that moves fluids from roots to plant stems and leaves, creating streaming electric potential, or voltage, in the process. A study closely examined the ...

Scientists have found out how the two clocks talk to each other genetically. Plants' circadian clock -- the 24-hour cyclic rhythm -- plays a critical role in regulating aging, in particular in timing ...

On the afternoon of November 25, Kīlauea's summit erupted with dramatic precision at 2:30 p.m. HST, sending fountains of ...

WE define ‘cycle’ as that phenomenon represented by regular variations of internal origin. By ‘rhythm’, we understand a phenomenon represented by regular variations imposed by external conditions.

The leading drug prescribed for male impotence can counteract the lethargy caused by a disruption in the sleep cycle, a study in rodents suggests. Sildenafil, commonly known as Viagra, helps hamsters ...