US EditionScorpions Are So Metal—Literally. New Images Reveal Patterns in How Their Weaponry Is Fortified With Iron, Zinc and Manganese
Researchers found metals concentrated only on key cutting surfaces, with 18 species showing different zinc patterns tied to hunting style.
- On Tuesday, researchers published a study in the Journal of the Royal Society Interface revealing that scorpions reinforce their stingers and pincers with metals like zinc, manganese, and iron to enhance durability.
- Using electron microscopy and X-ray analysis on 18 scorpion species from the Smithsonian National Museum of Natural History, the team mapped metal distribution across these arachnids' anatomy to establish a new approach for analyzing arthropod evolution.
- Metals concentrate in areas under stress; stingers feature zinc tips followed by manganese layers, while pincers contain zinc and iron along cutting edges to bolster weapons used for subduing prey.
- Surprisingly, the team noted that slender, weaker-looking claws contain higher zinc concentrations than larger, crushing pincers, suggesting these metals provide vital wear resistance for species relying on speed and agility.
- This discovery helps biologists understand how arachnids adapted to survive for 450 million years, potentially offering a model to investigate whether similar metal enrichment exists in other arthropod weapons like spider fangs.
14 Articles
14 Articles
Scorpions' weapons are fortified with metal to suit their needs, research shows
Scorpions wield some of the natural world's most formidable built-in weapons, from crushing pincers to venomous stingers. Scientists have long known that these structures contain trace metals that strengthen them, but only a small fraction of the roughly 3,000 scorpions have ever been examined for this trait.
Scorpions add metal to their stingers for extra strength, study finds
Scorpions are the natural world’s original metalheads. Research from the Smithsonian’s National Museum of Natural History shows that these arachnids add metals like zinc and iron to their stingers and pincers to make them stronger and sharper. In this study, 18 species were analyzed to determine how zinc, manganese, and iron are distributed within their built-in weapons, such as stingers and pincers. “Scorpions are incredible hunters, and while …
Scorpions Are So Metal—Literally. New Images Reveal Patterns in How Their Weaponry Is Fortified With Iron, Zinc and Manganese
Scientists knew the stingers and pincers of these arachnids generally contained metals, but a new Smithsonian-led study maps out how these components are distributed
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