The soil in the rainforests of Barro Colorado is packed with nutrients, but where does it come from? The answer lies high up in the canopy, where a remarkable, prolific species of nest-building ants drops its waste.
The island of Barro Colorado in the Panama Canal is full of mysteries, some involving the wide diversity of wildlife, and some involving the island itself. Every year, hundreds of scientists and students come here to uncover the rainforest's secrets, but this year is very different. The island is running dry and no one knows why. Follow several research teams as they observe, experiment, and conduct research in this pristine habitat, and most pressing of all, try to find out what happened to the rain and when it will come again.
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