Przewalski's horse used to roam the vast grassy plains of Eurasia in large herds. Over the centuries, the herds became smaller and eventually restricted to the dry, semi-desert plains on the other side of the Altai mountains, known as the Mountains of the Yellow Horses, which form the boundary between Mongolia and China.
In the wild, the horse survives on coarse grasses, branches and leaves from hardy trees growing on the harsh plains. It feeds mainly at dusk, always on the move as it searched for food. During the winter it often has to scrape away layers of snow to find anything to eat.
At dawn, the herds return to a desert habitat to rest until the evening. As the horses moved between resting and feeding areas, they walk in a line, forming deep, well trodden paths.