Modernity has helped to popularize, and at the same time threaten, indigeneity. Anthropologists question both the validity of the concept of indigeneity and the wisdom of employing it as a political tool, but they are reluctant to deny it to local communities, whose use of the concept has become subject to study. The concept of indigenous knowledge is similarly faulted in favor of the hybrid products of modernity, and the idea of indigenous environmental knowledge and conservation is heatedly contested. Possibilities for alternate environmentalisms, and the combining of conservation and development goals, are being debated and tested in integrated conservation and development projects and extractive reserves. Anthropological understanding of both state and community agency is being rethought, and new approaches to the study of collaboration, indigenous rights movements, and violence are being developed. These and other current topics of interest involving indigenous peoples challenge anthropological theory as well as ethics and suggest the importance of analyzing the contradictions inherent in the coevolution of science, society, and environment.