@Great Smoky Mountain National Park, TN, USA
大烟山国家公园每年夏天的同息萤火虫现象是由至少19种萤火虫组成，在21天的寿命里，用1/3的时间在森林里发光求偶找老婆，所有的雄性萤火虫能同一时间发光闪烁5-8次后静止8秒然后再同时一起发光重复同样的闪烁模式来勾搭雌性萤火虫。
Synchronous fireflies (Photinus carolinus) are one of at least 19 species of fireflies that live in Great Smoky Mountains National Park. They are the only species in America whose individuals can synchronize their flashing light patterns.
Fireflies (also called lightning bugs) are beetles. They take from one to two years to mature from larvae, but will live as adults for only about 21 days. While in the larval stage, the insects feed on snails and smaller insects. Once they transform into their adult form, they do not eat.
Their light patterns are part of their mating display. Each species of firefly has a characteristic flash pattern that helps its male and female individuals recognize each other. Most species produce a greenish-yellow light; one species has a bluish light. The males fly and flash and the usually stationary females respond with a flash. Peak flashing for synchronous fireflies in the park is normally within a two-week period in late May to mid-June.
