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 Egypt, Israel, and southwestern Jordan. Like all other species in the genus Gerbillus, the Anderson's gerbil is a burrowing rodent. The evidence for this mammal tends to suggest that it has a nomadic lifestyle considering that the warrens that it builds it not as complex as other genera of gerbils. However, the species sometimes live in groups when they are in a favorable habitat that is suitable for the living conditions of a group. This particular species of gerbil have been found to occupy a small home range typically from 32 to 34 square meters. This species of gerbil has