X-rays shot through this wood beetle revealed an unknown insect breathing mechanism. Image courtesy of the Field Museum. http://www.anl.gov/Media_Center/Frontiers/2004/ c3facil.html Video:http://www.sciencemag.org/feature/data/bioimaging/bug.htm 多洋：虫深生 少身电出值2al四e时y3y时堂