God's creation, the amazing fire fly!
There are more than 200 species of fireflies around the world. Almost everyone has seen these small insects flying about or sitting in the grass. On dark summer nights they can be seen flashing their lights like ships far out at sea. As they flash, they are communicating very specific messages to one another.
The light created by fireflies is called cold light because it is produced without creating any heat. To make a flash, the firefly must make and mix a chemical called luciferin with oxygen and an enzyme called luciferase. This mixture is combined with a catalyst to create the flashes of light. The result is a method of producing light that is far more efficient than any source of light in your home. A relatively tiny amount of energy creates a generous amount of light.
Fireflies do not make light so they can read a book. Their flashes are used for finding a mate. Fireflies are able to read the light signals of other fireflies. These signals may contain several messages. Some flashes can tell a firefly whether the sender is one of his species. Light flashes are used to identify whether the sender is a male or female. If it's a female, the flashes can identify whether she has already mated.
This is another example of the unlimited creativity and extravagance of our Creator God. The same beauty of the firefly that creates wonder in the child should also fill us with wonder at the limitless imagination of God.
Fireflies may help light the way to new medical break-throughs. The gentle glow of a firefly on a summer evening is produced by the chemical luciferase. The firefly has a gene with the code that makes this chemical. When that gene is added to the genetic information of other plants or animals, the cells begin to glow harmlessly. Researchers have been using the firefly gene to test their ability to add genetic information to a cell.
When human heart arteries become clogged, a medicine called TPA is among the treatments doctors use. TPA is a natural clot-dissolving protein that helps prevent heart attacks. The problem is, without a continuous supply of TPA, the artery may reclog. It would help if the artery could make its own TPA 24 hours a day.
Since TPA is a natural protein for which there is a genetic code, researchers wanted to know if genetic information could be added to artery cells. To find out, they injected dogs with the genetic code for luciferase. If genetic information could be added to the cells through this method, they would actually see the results in the glowing tissue. Tissue samples taken three days later did, in fact, have the distinctive glow of the firefly proving that the method works. They warn that several years of research lie ahead before artery cells may be able to dissolve their own clots.
This gene splicing is also being added to other things. Such as tobacco leafs which glow in the dark after the firefly genes are added.
There are also certain species of fireflies that can flash in unison! Until this was observed, only humans had this ability to do something in unison. It takes about an hour of flashing then they become in unison, flashing their light once per second.