Scorpions go terminator mode and reinforce their weapons with metal

Scorpions are armed with dual front pincers (technically known as chelae or pedipalp appendages) and a venom-injecting telson, or stinger, on the posterior of their tail. These things look dangerous enough on their own, but a chemical examination showed they contain metals like zinc, manganese, and iron. “That the metals are there has been known since the 1990s,” said Sam Campbell, a biologist at the University of Queensland, Australia.