Experts agree that efforts to conserve habitat are essential. Because their habitats are hot and dry, they must conserve water. Such sources effectively may not conserve energy. Hibernation functions to conserve energy when sufficient food is unavailable. This is an efficient way to conserve energy. This recycling also allows the possum to conserve water and urinate less. So we must conserve these fuels and use them judiciously. It is one of several institutions active in efforts to conserve the endangered "Torreya taxifolia". This approach effectively privatizes fish stocks and creates incentives for farmers to conserve their stocks. In order to conserve energy, other desert birds run rather than fly. This results in greater heat production and efforts to conserve heat. This is in large part intended to conserve energy. This allows the swimmer to conserve energy and be more relaxed. Sheep conserve water well and can live in fairly dry environments. Cacti show many adaptations to conserve water.