Quck answer
Scorpions glow under black light due to the presence of fluorescent chemicals in their exoskeletons. These chemicals absorb ultraviolet light and then emit it as visible light, causing the scorpions to glow a bright blue-green color. This adaptation is thought to help scorpions avoid predators and detect prey in low light conditions. Additionally, scientists have been able to use scorpion fluorescence in medical research and forensic investigations.
Wild Animals
A bunch of scorpions under black light. Flickr (CC By 2.0)
Scorpions are fascinating creatures that can survive difficult conditions, live longer than most insects, and give birth to live young without the need for a male. They can also manage without oxygen for about two days and consume almost anything they can capture, including other scorpions. In addition to these impressive traits, scorpions are known to glow a bright electric green color under ultraviolet light, which has puzzled scientists for some time.
While the chemical processes responsible for scorpion fluorescence remain somewhat of a mystery, researchers have been able to study the creatures more easily by using black light to locate them. The fluorescent chemicals are located in the hyaline layer of the scorpion’s outer exoskeleton, which is shed periodically as the creature grows. Until the hyaline layer hardens, it does not fluoresce under UV light.
Scientists have proposed several theories as to why scorpions glow under black light. One possibility is that it helps them locate each other in the dark, while another is that it provides some protection from the sun. Some researchers believe that scorpions may use their fluorescent exoskeletons to confuse their prey. However, a 2011 study found that scorpions actually use their entire bodies as UV detectors, avoiding UV light whenever possible as it can be harmful to their eyes.
Now That’s Interesting
Despite their venomous nature, scorpions are not typically dangerous to humans. Only about 25 of the nearly 2,000 known species are capable of producing venom strong enough to cause harm to an adult.
FAQ
1. What is black light?
Black light is a type of ultraviolet light that emits a specific range of UV radiation. It is also known as a UV-A light and is typically used for special lighting effects, such as in nightclubs and glow-in-the-dark parties.
2. Why do scorpions glow under black light?
Scorpions have a unique ability to fluoresce under black light due to the presence of certain chemicals in their exoskeleton. This is a natural adaptation that helps scorpions to detect prey and avoid predators at night.
3. What causes the fluorescence in scorpions?
The fluorescence in scorpions is caused by the presence of a chemical called beta-carboline in their exoskeleton. When exposed to UV-A light, this chemical emits a blue-green glow that is visible to the human eye.
4. Are all scorpions capable of glowing under black light?
Not all scorpions are capable of glowing under black light. Only certain species, such as the bark scorpion, have the ability to fluoresce due to the presence of beta-carboline in their exoskeleton.
5. What other animals can glow under black light?
There are many other animals that can glow under black light, including certain species of spiders, insects, and fish. Some types of fungi and bacteria can also fluoresce under UV-A light.
6. Is there a practical use for black light?
Yes, black light has a number of practical uses. It is commonly used in forensic investigations to detect bodily fluids, such as blood and semen. It is also used in the medical field to diagnose certain skin conditions and to treat neonatal jaundice.
7. Is black light harmful to humans?
While UV-A light is generally considered less harmful than UV-B and UV-C light, prolonged exposure to black light can still cause damage to the eyes and skin. It is important to use caution when using black light and to avoid prolonged exposure.
8. How can I see if a scorpion is glowing under black light?
To see if a scorpion is glowing under black light, you will need a UV-A light source and a dark room. Shine the UV-A light on the scorpion and look for a blue-green glow. Be careful not to get too close or disturb the scorpion.
9. Can scorpions see their own fluorescence?
It is not clear whether scorpions can see their own fluorescence or not. Some researchers believe that scorpions may be able to detect the glow of other scorpions and use this as a form of communication.
10. Do scorpions only fluoresce at night?
Scorpions are most active at night and are more likely to fluoresce under black light during this time. However, they can still fluoresce during the day if they are exposed to UV-A light.
11. Can scorpions still glow under black light if they are dead?
Yes, scorpions can still fluoresce under black light even if they are dead. The fluorescence is caused by the presence of the chemical beta-carboline in their exoskeleton, which remains after death.
Leave a Reply