These plots have triggered a small-scale reafforestation project which could change this island landscape, its soils and its many earthworms. Rum has yielded some remarkable earthworm findings ...

It convinced one of the largest rum brands in the world, Captain Morgan, to abandon Puerto Rico and to shift its operations to the tiny island of St. Croix. This was the beginning of the Rum Wars.

But the earthworms on Rum are equally remarkable. These invertebrates act as "ecosystem engineers", actively shaping the landscape, often after humans have left their mark on this remote island.