Dusk settled on the lake. I could hear the kiss of [bluegill|bluegills] as they sucked down insects struggling on the surface.
A few lightning bugs flashed above the mirrored surface. Attracted by their own [Narcissus|reflections], they swooped ever closer to the lightning bugs flashing below them.
Fish may not be smart, but they're not all get-out stupid, either. And a bluegill will jump if hungry enough. A few were hungry enough. And inside their bellies glowed a few foolish lightning bugs.
Lightning bug light is cool-literally. [Luciferin] combines with [ATP], the energy molecule of life--the resulting compound combines with [oxygen], catalyzed by [luciferase], and [light] results. Even tiny amounts of ATP will cause luciferin to light, as long as oxygen is present. While man has never been to [Mars], bits of lightning bugs have--luciferin is an extremely sensitive detector of ATP. If it flashes, carbon-based life may be present.
Luciferase from the North American [firefly] (Photinus pyralis) is the [enzyme] of choice for reporter [gene] assays. Luciferase catalyzes the [oxidation] of a firefly-specific substrate called luciferin to produce light. This reaction is extremely efficient and the quantum yield is the highest of any characterized [bioluminescent] reaction. The bright signal makes this a valuable enzyme to use for reporting promotor activity. • Packard’s LucLite® assay system, introduced in 1994, produces a long lived glow type signal with a [half-life] of several hours, which makes it ideal for use in noninjector based HTS luminometers, like the Packard TopCount® NXT Microplate Scintillation and Luminescence Counter or the Packard LumiCount® Microplate Luminometer.
Luclite Plus Reporter Gene Assay System, 20,000mL from PerkinElmer, http://www.biocompare.com/itemdetails.asp?itemid=389636&catid=1620
[scientist|Scientists] have yet to synthesize luciferin, so they buy lightning bugs.
My [daughter] dug out a tiny mudhole for me in our backyard. At dusk, I sit opposite the [pokeweed] I am learning to like, under a stray [birch|white birch] I have always liked. Lightning bugs arise from the earth, flashing their "J"'s, looking for love. [Harry Potter], like the [Bible], makes sense sitting outside on a warm July evening.
I read until the dusk chases words off the page, my feet resting on a small stone wall we built together.
A flash just below my right foot.
I break from Harry Potter to anticipate the [courtship]. A second scurrying critter rumbles about the flash. The flashing becomes frantic, several short blips in less than a few seconds. My eyes adjust--a [spider] dances around its prey.
I've never seen a lightning bug flash quickly like that, but then I've never seen one eaten by a spider either. A lightning bug makes a flash by adding a tiny bit of ATP to luceferin. In our mechanistic view of the world, not a bad worldview if you're in the business of conquering it, lightning bugs flash instinctively. They are not known to flash for defensive purposes.
I cannot know why this one flashed, but I do know that lightning bugs, at least this one, had a pattern distinct from its [cherchez la femme] mode when struggling with a spider.
I almost didn't try to "save" it--a good [naturalist] observes, does not interfere. The spider has as much a right to the meal as I do to mine. Death by spider is likely to be quicker than death by starvation if the critter could no longer fly.
I pulled the frenetically flashing bug out of the web--a white wisp of [web] stuck to its backside. I set it on a leaf of the birch with mixed feelings. It will die slowly because my imagination would not allow me to let the spider bite it.
As the critter struggled with its first pair of legs to grasp the edge of the leaf, I gently pulled back the stick. The [spider silk] stuck to my stick. The lightning bug scootched a few millimeters, no longer flashing, and stood still.
I watched a moment longer. The lightning bug opened up its beetley shell, opened its wings, and flew away.
A moment later, a lightning bug brushed my leg at the bottom of its "J". No way to know if it was the same one. And it really doesn't matter.
Some Asian lightning bugs flash in unison. The lightning bugs in the [New Jersey|Jersey] area, at least the ones that make a J, are not known to do this (according to the scientists). Oh, occasionally they'll accidentally flash together a few seconds after the flash of a bright light, as though they were all resetting their bellies after seeing a [god], but left alone, our fireflies are supposed to be the individualistic sorts.
The local critters must be [illiterate]--once or twice a dusk, they amuse themselves with synchronous flashing. (“Amuse” sounds like [anthropomorphize|anthropomorphizing], of course--it’s an interesting word, comes from the French amuser, “to stupefy”--we’re most amused when our brains are buggy.) .
One poor fellow one evening couldn’t turn off his belly --he’d glow properly enough in his “J”, but still fizzled a bit as he looked for a response--doubt he could see much light beyond his perpetually lit self.
I muttered “[padiddle].” .
Lightning bugs are, obviously alive. They have a lot of [ATP]. They have a lot of luciferin and luciferase. We made lightning bug earrings, lightning bug drawings, we’d smear dying and dead lightning bugs over our faces and laugh and scream like the atavistic creatures we were, mock Indian [he painted with the souls of the living|face paint].
I am a science teacher; I am not a scientist. Like the [George W. Bush|President], a lot of folks are confused about what constitutes science. We want children to be amazed. You can purchase, via [PayPal], a lightning bug “collection system.” You have a choice of sizes, and the handle glows in the dark. Imagine that! No doubt safer than punching holes in a half-rinsed mayonnaise jar.
Kids can study and be fascinated by all the little bugs found in the average back yard. Firefly lanterns allow children to watch the lighnting sicbugs light up. The bugs can be returned to nature where they were found after a day or two of enjoyment.
Another “[experiment]” suggests that kids catch lightning bugs in a jar for 5 minutes, record their observations, then let them go.
Plum Creek Marketing Entomology Products for Kids.
Took me 40 years to realize I learn a whole lot more doing nothing, feet up on a tiny stone wall next to my daughter’s puddle.