Prolonged exposure to uv light reduces scorpion fluorescence

It is well known that scorpions fluorescence under ultraviolet light exposure. No function for this phenomena has yet been proven. It is possible that there is no biological function and that the fluorescence is a byproduct of a molecule whose primary function is unrelated to fluorescence. More research is necessary to unravel the mystery of scorpion fluorescence.

Anecdontal reports have suggested that long-term exposure to uv light may reduce scorpion fluorescence. Carl Kloock has recently published a paper showing that this is indeed true. Interestingly, Kloock's work also show that fluorescence in live specimens recovered after one week without uv exposure. This is an indication that active metabolic processes are responsible for the recovery. Preserved specimens with reduced fluorescence showed no recovery after termination of uv exposure.

Abstract:
No abstract available

Reference:
Kloock CT. Reducing scorpion fluorescence via prolonged exposure to ultraviolet light. Journal of Arachnology. 2009;37(3):368-70. [Free fulltext - Open Access article]