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
Guinean gerbil gerbil is a fairly large gerbil growing to a head-and-body length of about with a tail of about . The head has a slightly-rounded snout, large eyes and somewhat elongated ears. The upper parts of the body are greyish-brown, the individual hairs having dark grey bases, orange or brown shafts and black tips. The head and flanks are paler, the hairs lacking dark tips. The underparts, including the chin, throat, the inside of the limbs, the fore-feet and the upper side of the hind-feet are white. There is a clear division between the dorsal and ventral colouring. The tail is