Brazil's Indians and the Onslaught of CivilizationThe Yanomami and Kayap, two indigenous groups of the Amazon rainforest, have become internationally known through their dramatic and highly publicized encounters with civilization. Both groups struggle to transcend internal divisions, preserve their traditional culture, and defend their land from depredation, while seeking to benefit from the outside world, yet their prospects for the future seem very different. Placing each group in its historical