In the Smoky Mountains, Thousands of Fireflies Flash in Unison; Researchers Want to Know How

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During typical summers in the southeastern U.S., streams of visitors travel to Great Smoky Mountains National Park to witness one of nature’s most spectacular displays of light: thousands of male fireflies, all flashing together in near-perfect harmony. 

 

During typical summers in the southeastern U.S., streams of visitors travel to Great Smoky Mountains National Park to witness one of nature’s most spectacular displays of light: thousands of male fireflies, all flashing together in near-perfect harmony.  


“This is the most beautiful biological phenomenon that I’ve ever witnessed,” said Orit Peleg, an assistant professor in the Department of Computer Science and BioFrontiers Institute at CU Boulder.

In a study published today in the Journal of The Royal Society Interface, she and her lab members shed new light on this beautiful phenomenon—striving to understand how relatively simple insects manage to coordinate such feats of synchronization.

The team discovered that the light shows may be more complicated than scientists realized: Rather than flash according to some innate rhythm, the fireflies seem to observe what their neighbors are doing, then adjust their behavior to match.

 

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Image via University of Colorado - Boulder.