Cacao grows in rainforests, so perhaps they’re adapted to rich soils that over time have become net accumulators of heavy metals. There’s examples of other pla

Cacao grows in rainforests, so perhaps they’re adapted to rich soils that over time have become net accumulators of heavy metals. There’s examples of other plants that thrive in the presence of heavy metals, such as this one that “bleeds” nickel rich sap: https://www.bbc.com/news/science-environment-45398434.amp https://www.bbc.com/news/science-environment-45398434.amp