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Do Scorpions Glow in the Dark?

Scorpion in the Sky Islands fluorescing under black light

Scorpion in the Sky Islands fluorescing under black light

Actually, scorpions do not glow in the dark. They glow in the light – in black light, to be precise! The scorpion shell has components that fluoresce when exposed to particular ultraviolet wavelengths. As a result, black light turns this usually plain arachnid into an amazingly vibrant little beacon of bluish light.

We may find scorpions scary (although most species do not have venom that will kill a human). But scorpions are amazing creatures that have been around since Paleozoic times, when they grew as large as eight feet long! Today these little predators play a vital role in the ecosystem. They are a natural indicator of habitat health, and their absence signals a depleted habitat.

We totally understand if you're not a huge fan of scorpions – though you must admit that with their black-light glow, powerful venom, and incredible range and fossil record, they're fascinating critters. But their presence in the Sky Islands in the southern U.S. and northern Mexico is just one indication of a complex and biologically rich ecosystem that deserves protection. You can help!

Donate to support biodiversity in the Sky Islands today.

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