Your abdomen extends from below your chest to your groin. Some people call it the stomach, but your abdomen contains many other important organs. Pain in the abdomen can come from any one of them. The pain may start somewhere else, such as your chest. Severe pain doesn't always mean a serious problem. Nor does mild pain mean a problem is not serious.
For other uses of Firefly, see Firefly (disambiguation). The Lampyridae are a family of insects in the beetle order Coleoptera. They are winged beetles, commonly called fireflies or lightning bugs for their conspicuous use of bioluminescence during twilight to attract mates or prey.
We highly recommend purchasing this book by firefly researcher Lynn Faust if you are interested in learning more about fireflies, glow-worms, and lightning bugs. Fun Fact: Light Organs The glow from fireflies or lightning bugs comes from photic organs, or organs that produce light. Fun Fact: Making Light. Fireflies combine three special substances in their photic organs to make light. The three substances are: luciferin (a pigment), luciferase (an enzymatic catalyst), and ATP (nucleotide that provides energy to cells).