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
Tarabul's gerbil breeds during throughout the rainy season, July to September, beginning breeding at the end of the coll dry season in April and ending at the start of the cool dry season in November. Barn owls "Tyto alba" have been recorded as preying on this species. Tarabul's gerbil was considered to be a junior taxonomic synonym of the greater Egyptian gerbil "Gerbillis pyramidus" but has a different chromosome count of 40 rather than 38 and differs morphologically. Tarabul's gerbil Tarabul's gerbil ("Gerbillus tarabuli") is a species of small rodent which is found in arid regions of north western Africa. Tarabul's gerbil