Yellowstone National Park, United States. Scientists conduct natural and social-science research to learn more about the ecological role of large carnivores in the Northern Rockies and their effects on the livelihoods of local ranchers.

• Ecology
• Conservation Biology
• Environmental Policy
• Environmental Economics
• Social Ecology
• Environmental Anthropology

Research is performed on five continents and supported by a network of university and faculty laboratories, 11,000 acres of research forests, the Yale University Library, and many international partner organizations.