according to the daily mail of september 2, amateur photographer and full time physicist kristian cvecek from erlangan, near nuremburg, german, used slow shutter speeds to capture on camera fireflies'movements between the trees and ferns at night。

　　英国每日邮报9月2日报道，来自德国纽伦堡附近埃朗根的克里斯蒂安那•西维塞克是一名物理学家和业余摄影师。他用放慢相机快门速度的方法，拍下树林里和厥类植物中萤火虫夜间活动的照片。

　　fireflies are winged beetles and give off a green luminous glow from chemicals in their lower abdomen at night. and scientists call this process as bioluminescence。

　　萤火虫属于有翼甲虫类，在晚上它们通过腹部的化学物质放出绿色光亮。科学家一般称这一过程为“生物发光”。