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
Cheesman's gerbil shrubby plant, and the gerbil closes the entrance when it enters by flicking sand across with its tail. It is preyed on by predators such as owls, the Arabian red fox and Rüppell's fox. "G. cheesmani" is a common species, has a wide range and is presumed to have a large total population. The population trend seems to be stable and no particular threats to the animal have been identified. The International Union for Conservation of Nature has assessed its conservation status as being of "least concern". Cheesman's gerbil Cheesman's gerbil ("Gerbilus cheesmani") is a small rodent in the subfamily