Heavy metal captivated the world when it first hit the scene. Especially mercury, which the Romans figured had magical properties. They mined it even though it kept killing the slaves.

You can still taste the history of heavy metal in marlin, tuna, and tilefish because they live for a long time and are high enough up the food chain to extract all the heavy metals in smaller, tastier fish and store it in their kidneys, liver, and brain.