the Tharu across the full range of the terai engaged in a sustainable form of short-fallow-shifting cultivation, growing rice, mustard, and lentils, and rotating crops to allow the soil to recover between plantings. Being seminomadic, most Tharus lived in low-impact mud and grass structures and stayed at a given habitation site for only a few years, ensuring that no single patch of forest would ever be over-farmed or over-hunted.