Even today, roughly 40% of Mongolians are nomadic. Around one third of the country's population still lives in traditional dwellings called "Gers", which can be quickly deconstructed. The Mongolian nomads relied on their animals for survival and moved their habitat several times a year in search of water and grass for their herds. Their lifestyle was precarious, as their constant migrations prevented them from transporting reserves of food or other necessities. Since the Hun Empire, Mongolians have been raising their five domestic animals. This includes sheep, horse, cow, camel, and goat in the broad region of forest and steppe.