Negev additives. Vegetation in the Negev is sparse, but certain trees and plants thrive there, among them "Acacia", "Pistacia", "Retama", "Urginea maritima" and "Thymelaea". A small population of Arabian leopards, an endangered animal in the Arabian peninsula, survives in the southern Negev. The Negev Tortoise ("Testudo werneri") is a critically endangered species that currently lives only in the sands of the western and central Negev Desert. The Negev shrew ("Crocidura ramona") is a species of mammal of the family Soricidae found only in Israel. "Hyphaene thebaica" or doum palm can be found in the Southern Negev. Evrona is the most northerly
Incense Route – Desert Cities in the Negev caravanserai towards the west of the site. Soft clay stones and burnt clay bricks have been used in its construction. Apart from the living rooms, it has chambers for cooking, washing and workplaces. It is also in ruins with only about high walls. Large area of agricultural land formed in terraces surround this caravanserai. Agriculture practiced by the Nabateans in the arid desert conditions where the annual precipitation is of the order , is through a well developed irrigation system consisting of hundreds of small dams, channels, cisterns, and reservoirs which collect flood water. The agricultural fields have been noted