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 Balochistan gerbil The Balochistan gerbil or dwarf gerbil ("Gerbillus nanus"), is distributed mainly from Morocco across north Africa, the Arabian Peninsula, the Middle East and western Asia. This is a common species with a wide distribution which faces no obvious threats, so the International Union for Conservation of Nature has rated its conservation status as being of "least concern". The Balochistan gerbil is a medium-sized, slender species that somewhat resembles Wagner's gerbil ("Dipodillus dasyurus"). Its head-and-body length is between and its tail is between . The upper parts are yellowish-brown, tinged with grey; this is because the individual hairs have