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
Anderson's gerbil been documented to be nocturnal. These gerbil are seed-eating gerbils and feed on the particular seeds of the common evergreen Thymelea hirsuta. The breeding season for the Anderson's gerbil has been recorded to occur during late winter and early spring. Their breeding season coincides with the seed shedding of the Thymela hirsuta. Both genders of the species are active for reproductive purposes only once per year. The gestation period for the females is from 20 to 22 days. The females usually give birth to a liter of three to seven offspring. Anderson's gerbil has been said to be able to