![]() So the hypothesis is, that it could help finding an appropriate shelter. They suggest, that the cuticle may function as a whole body photon collector, transducing UV light to green-cyan before relaying this information to the nervous system. Another finding is the photosensitivity for green light of the scorpions metasoma. ![]() But we know that scorpions survived this long with little to no change over the last 400 million years, so it is/was not a real disadvantage for these critters.Ĭolleagues of mine were able to show that the medial and lateral eyes of scorpions are sensitive to UV light and that when exposed to UV light scorpions exhibit strong locomotory activity under lab conditions. There are hypothesis stating it could be just a by-product of the metabolism, a mating adaptation or simply without any function. Interestingly, we still do not know why scorpions fluoresce or if there is any biological function for this phenomen. Therefore, only concentrated UV light in a darker enviroment enables humans to see the flourescence of objects. Humans are sensitive in the spectral range of green and red, blue not so much. Besides, the human eye is not sensitive to the fluoresence spectrum because the wavelengths are too small. ![]() Scorpions do indeed fluoresce in daylight but it is concealed by the other colors which are reflected by the scorpion. That's a very good question! Neuroscientist specialised in scorpions here.
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