Overview
- The peer-reviewed study mapped zinc, manganese, and iron across the weapons of 18 scorpion species using X-ray microanalysis and electron microscopy.
- Metals concentrate where force is highest, with zinc at stinger tips, manganese beneath the tip, iron limited to claws, and zinc unevenly shared between both weapons.
- Many stingers show a layered layout that hardens the needle-like point with zinc and positions manganese below to help the structure absorb stress.
- Species differ in metal budgets, with zinc levels often inversely split between stinger and claws, and slender, weaker pincers enriched with zinc and iron to boost wear resistance.
- The dataset lays groundwork for tests of how scorpions take up metals and how patterns vary by age or sex, and it could guide designs for tougher, wear-resistant tools.