Story perspectives

Scientists Reveal Intentional Zinc Enrichment in Scorpion Stingers.

5/2/2026

Summary

Story summary

Sam Campbell and his team mapped metal distribution in scorpion stingers and pincers, proving enrichment is intentional.
They examined 18 scorpion taxa from the Smithsonian National Museum of Natural History collection using high-resolution scanning electron microscopy and micro-X-ray fluorescence imaging.
Zinc concentrates at the extreme tip of the aculeus, while manganese dominates the region just below.
Campbell said zinc adds hardness that helps the stinger retain strength during envenomation.

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Story summary

Sam Campbell and his team mapped metal distribution in scorpion stingers and pincers, proving enrichment is intentional.
They examined 18 scorpion taxa from the Smithsonian National Museum of Natural History collection using high-resolution scanning electron microscopy and micro-X-ray fluorescence imaging.
Zinc concentrates at the extreme tip of the aculeus, while manganese dominates the region just below.
Campbell said zinc adds hardness that helps the stinger retain strength during envenomation.