Since weather permitted my wife and I had resumed our after dinner walking. We had a late dinner this evening. It was fairly dark outside however the night unveiled lots of funs that concealed under daylight. The trails and bushes are full of fireflies , a fairy world to two old kids. The fireflies also come out during daytime but cannt be seen by naked eyes. She was born and spent her childhood in the mountain region of GuiZhou province. Her childhood was full of wild fantacies, climbing trees，climbing over mountains, fishing in the creek，etc. etc. and catching fireflies and collecting fireflies in a glass bottle. How could you do that, seems to me the fireflies never stay still more than a sceond? Yes, they do, keep following the lights, aha, I got one. Okay, seeing is believing, the firefly hunter is real. 1. Last summer I went out one night with my tripod trying to catch fireflies without much success , coz they were sparse at the night. I dont have a tripod in hand tonight. hand-held my camera, 6 seconds exposure time, face the light, got lucker this time, two fireflies crossed my image field. The two trajectories generated by two fireflies appears as dotted lines meaning the lights of fireflies are pulsed lights in stead of continuous lights.
Why Do Fireflies Glow? By Chanie Kirschner Updated February 05, 2021
It seems kind of magical, doesn’t it? As summer draws nearer and the days grow longer, it’s only natural to start daydreaming of summer barbecues, picnics and downtime. And the glow of a firefly is a requisite symbol of the lazy, hazy days and nights of summer. To be honest, I’d never really thought about it myself, but the answer is positively fascinating.
So How Do Fireflies Glow?
Turns out it’s not quite so magical after all, since it’s the product of a complex chemical reaction going on inside their bodies. You see, fireflies contain a chemical in their abdomen called luciferin. When that chemical combines with oxygen and with an enzyme called luciferase, the ensuing chemical reaction causes their abdomen to light up. This light is referred to as bioluminescence, which is when a chemical light is produced by a reaction within a living organism. Most commonly seen on dry land in the glow of a firefly, bioluminescence is actually far more common under the sea in many species of fungi, fish and other marine wildlife. Bioluminescence is a “cold light”— it doesn’t produce any heat, like the light from a light bulb, for instance. And it’s a good thing too, because if a firefly produced heat along with its glow, it wouldn’t be able to survive.
So Why Do Fireflies Glow in the First Place?
The answer to that is the same as the answer to the question of why some men wear so much darn cologne. To attract the ladies, of course! (But far more successfully than the men with the cologne.) Most of the time, at dusk, when you see fireflies buzzing around flashing lights all around you, they’re actually male fireflies doing most of the flashing. That’s because they’re trying to "show off" for the ladies of their own species. There are more than 2,000 species of firefly. A male firefly will light up its abdomen at a particular rate or wavelength, and when a female firefly sees a male from her own species shining in that particular way, she’ll respond with her own light. Hence baby fireflies are conceived.
Another reason fireflies glow (and this one not quite as romantic) is to lure prey. Some females will glow to lure a male to her and then — chomp! — he becomes dinner.
The final reason that fireflies glow is to deter predators. Fireflies are filled with chemicals called lucibufagins, which is hard to say and even harder to swallow — they taste terrible. When a predator tastes a firefly, it learns to associate the glow with the bad taste. So the firefly’s glow actually warns would-be predators to stay away.
There you have it, folks. Something so simple and magical as a lightning bug’s glow broken down into all its not-so-magical component parts. Then again, that makes it kind of magical, right?
Fireflies undergo a transformation called complete metamorphosis.[14]
A few days after mating, a female lays her fertilized eggs on or just below the surface of the ground. The eggs hatch three to four weeks later, and the larvae feed until the end of the summer. The larvae are commonly called glowworms (not to be confused with the distinct beetle family Phengodidae or the fly genus Arachnocampa). Lampyrid larvae have simple eyes. The term glowworm is also used for both adults and larvae of species such as Lampyris noctiluca, the common European glowworm, in which only the nonflying adult females glow brightly and the flying males glow only weakly and intermittently.
A video of fireflies
Fireflies hibernate over winter during the larval stage, some species for several years.
firefly by Owl City
花董的摄影世界，捕捉到的都是梦中的童话世界：）
你的lit up用的好，我今天上电梯，有个楼层灯摁下去但不亮，
同坐电梯的人，说“not light up”
Why Do Fireflies Glow? By Chanie Kirschner Updated February 05, 2021
It seems kind of magical, doesn’t it? As summer draws nearer and the days grow longer, it’s only natural to start daydreaming of summer barbecues, picnics and downtime. And the glow of a firefly is a requisite symbol of the lazy, hazy days and nights of summer. To be honest, I’d never really thought about it myself, but the answer is positively fascinating.
So How Do Fireflies Glow?Turns out it’s not quite so magical after all, since it’s the product of a complex chemical reaction going on inside their bodies. You see, fireflies contain a chemical in their abdomen called luciferin. When that chemical combines with oxygen and with an enzyme called luciferase, the ensuing chemical reaction causes their abdomen to light up. This light is referred to as bioluminescence, which is when a chemical light is produced by a reaction within a living organism. Most commonly seen on dry land in the glow of a firefly, bioluminescence is actually far more common under the sea in many species of fungi, fish and other marine wildlife. Bioluminescence is a “cold light”— it doesn’t produce any heat, like the light from a light bulb, for instance. And it’s a good thing too, because if a firefly produced heat along with its glow, it wouldn’t be able to survive.
So Why Do Fireflies Glow in the First Place?The answer to that is the same as the answer to the question of why some men wear so much darn cologne. To attract the ladies, of course! (But far more successfully than the men with the cologne.) Most of the time, at dusk, when you see fireflies buzzing around flashing lights all around you, they’re actually male fireflies doing most of the flashing. That’s because they’re trying to "show off" for the ladies of their own species. There are more than 2,000 species of firefly. A male firefly will light up its abdomen at a particular rate or wavelength, and when a female firefly sees a male from her own species shining in that particular way, she’ll respond with her own light. Hence baby fireflies are conceived.
Another reason fireflies glow (and this one not quite as romantic) is to lure prey. Some females will glow to lure a male to her and then — chomp! — he becomes dinner.
The final reason that fireflies glow is to deter predators. Fireflies are filled with chemicals called lucibufagins, which is hard to say and even harder to swallow — they taste terrible. When a predator tastes a firefly, it learns to associate the glow with the bad taste. So the firefly’s glow actually warns would-be predators to stay away.
There you have it, folks. Something so simple and magical as a lightning bug’s glow broken down into all its not-so-magical component parts. Then again, that makes it kind of magical, right?
ZT https://www.treehugger.com/why-do-fireflies-glow-4864017
抓住移花问一下，好多照片那种黑色背景怎么弄出来？你这些黑背景是因为晚上拍的吗？还是也处理了？谢谢。
Fireflies undergo a transformation called complete metamorphosis.[14]
A few days after mating, a female lays her fertilized eggs on or just below the surface of the ground. The eggs hatch three to four weeks later, and the larvae feed until the end of the summer. The larvae are commonly called glowworms (not to be confused with the distinct beetle family Phengodidae or the fly genus Arachnocampa). Lampyrid larvae have simple eyes. The term glowworm is also used for both adults and larvae of species such as Lampyris noctiluca, the common European glowworm, in which only the nonflying adult females glow brightly and the flying males glow only weakly and intermittently.
Fireflies hibernate over winter during the larval stage, some species for several years.
“A male firefly will light up its abdomen at a particular rate or wavelength”
https://bbs.wenxuecity.com/mysj/237627.html
Thanks Bro-:))..
Stay Safe..
Take Care-:)). .