| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | wolf | United States | Wolves are often symbolized as wild and free, and are studied in biology classes | 1 |
| 2 | wolf conservation | United States | Efforts to reintroduce wolves into natural habitats and protect them as a key part of the ecosystem | 1 |
| 3 | wolf reintroduction | United States | Controversial due to potential impact on livestock and local ecosystems | 1 |