Eduardo and his family live in a small town in Ecuador, not far from the Amazon rainforest. The rainforest is an important part of their lives. Each month Eduardo and his father travel by river from their town to the rainforest. There, using just a basket and a machete, they gather Brazil nuts. They are casta?eros and this is how they earn their living. But the rainforest is not only important to the casta?eros; it is home to many exotic species of...