How do lightning bugs glow?

kelbat on December 5, 2009, 2:01 am

Chemical reaction

StarAngel on December 5, 2009, 9:30 am

Bio- illumination

magickfingers on December 5, 2009, 11:52 am

Causew they are horny.

MrsCullen on December 5, 2009, 5:13 pm