Scorpions glow under ultraviolet light
Scorpions universally glow bright blue or green under ultraviolet light due to unique exoskeleton chemicals, a fascinating ancient adaptation that helps scientists study them in the dark.
Scorpions exhibit a striking blue or green glow under ultraviolet light, a phenomenon caused by special chemical compounds in their exoskeletons. These compounds absorb UV radiation and re-emit it as visible light, a process called fluorescence. This trait is universal among all 2,000+ known scorpion species and has existed for over 400 million years. Scientists use this glow to locate scorpions at night for population studies without disturbing them. While the exact evolutionary purpose is still debated, it offers fascinating insights into ancient adaptations and has even inspired biotechnology applications.