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Scorpions Evolved Metal-Reinforced Weapons With Strategic Trade-offs
Science
01.05.2026Résumé IA

Scorpions Evolved Metal-Reinforced Weapons With Strategic Trade-offs

Researchers at the University of Queensland discovered that scorpions deliberately evolved to incorporate metals like zinc, manganese, and iron into their stingers and pincers, rather than accidentally absorbing them from the environment. Using high-resolution imaging on 18 scorpion species, they found zinc concentrated at stinger tips for hardness, while manganese below provides flexibility. The study also revealed an inverse relationship between metal enrichment in pincers versus stingers, with species reinforcing whichever weapon they use most. However, a design weakness remains where stingers often snap at the zinc-manganese transition zone.

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Ars Technica