Scorpions are fluorescent under ultraviolet light.
Scorpions are fluorescent under ultraviolet light. Researchers have frozen scorpions overnight, only to put them in the sun the next day and watch them thaw out and walk away! (Photo by Kenton Elliot, courtesy of Desert USA/Digital West Media Inc.)

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Photo by: U.S. Army Corps of Engineers Jacksonville District |  VIRIN: 131105-A-CE999-052.JPG