Stig Östlund

onsdag, juli 10, 2013

Synchronized Fireflies


Synchronized Fireflies, Great Smoky Mountains National Park: For two weeks in the summer, thousands of fireflies congregate and blink in perfect unison to attract mates. Each species of firefly has a unique flash pattern that leads males and females to one other. Although there are 19 species of fireflies that live within the national park, only synchronous fireflies can coordinate their glow. /USATODAY

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