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An curved arrow pointing right. You definitely shouldn't mess around with mercury, but if you want a safe, similar, tactile experience, a metal called Gallium is widely available online.

And humans are then exposed to the element when they eat the fish, one of the most widely consumed around the world. Image source, Getty Images Image caption, Concentrations of mercury in the fish ...

Much of the fish you eat is contaminated with mercury, a toxic element that finds its way from factories and power plants into rivers, lakes, and oceans. This has become a major public health ...