Hulunbeier grassland in Inner Mongolia. Hulunbeier grassland in Inner Mongolia used to be the location of virgin forest, but due to long-term development and logging, the virgin forest gradually disappeared, replaced by grassland and wolves, so it is the place with the largest number of wolves in China. In addition, Xinjiang, Qinghai, Gansu and Tibet are also places where there are many wolves in China. Most of them belong to nature reserves or wildlife reserves, and the ecological environment is relatively primitive, which is suitable for the habitat and reproduction of wild animals such as wolves.