Only 13 percent of their original habitat in the Atlantic Rainforest remains. An Aché community of 40 families lives in the southern part of the forest. They still own 500 hectares of land. They're surrounded by soybean plantations, but they, too, have to farm land to survive. A team from the World Wide Fund for Nature is helping the Aché preserve their habitat and way of life. They are encouraging the revival of yerba maté cultivation. The plant regenerates the forest floor, resulting in greater biodiversity.