Landlocked country one, making them the biggest contiguous group in the world. Also, the Central Asian and Caucasian clusters can be considered contiguous, joined by the landlocked Caspian Sea. Mongolia is almost part of this cluster too, being separated from Kazakhstan by only , across Russian or Chinese territory. There are the following "single" landlocked countries (each of them borders no other landlocked country): If the Caucasian countries and Kazakhstan are counted as part of Europe, then Europe has the most landlocked countries, at 20. If these transcontinental countries are included in Asia, then Africa has the most, at 16. Depending on
Balochistan gerbil Africa, the Arabian peninsula and western Asia. Its range includes the northwestern region of Africa to the north of the Sahara, from Morocco, Algeria and Tunisia, and the Sahel to the south of the desert, from Mauritania to Mali, Niger and Chad. A separate population is present in the Arabian Peninsula, the Middle East, Afghanistan, Pakistan and northwestern India. The typical habitat of this gerbil is desert and semi-desert where it mostly occupies better vegetated locations such as wadi's, oases and sand-clay basins and plains with relatively deep soils. Balochistan gerbil The Balochistan gerbil or dwarf gerbil ("Gerbillus nanus"), is