Biological clocks: How does the body know that time goes by?

In April of this year, Spanish athlete Beatriz Flamini emerged into the light after a 500-day stay in a cave. Her descent underground is probably the longest undertaken by a long stretch. Flamini says she lost all sense of ...

New research shows the complexity of bacterial circadian clocks

Bacteria make up more than 10% of all living things but until recently we had little realization that, as in humans, soil bacteria have internal clocks that synchronize their activities with the 24-hour cycles of day and ...

Filming proteins in motion to understand their functions

Proteins are the heavy-lifters of biochemistry. These beefy molecules act as building blocks, receptors, processors, couriers and catalysts. "Proteins are the molecular machines that power all life on Earth," explained Mark ...

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