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
Highveld gerbil Highveld gerbil The Highveld gerbil ("Gerbilliscus brantsii") is a species of gerbil found in Angola, Botswana, Lesotho, Namibia, South Africa, Swaziland, Zambia, and Zimbabwe. Its natural habitats are dry savanna, temperate shrubland, subtropical or tropical dry shrubland, temperate grassland, and temperate desert. This is a common species with a wide range and the International Union for Conservation of Nature has rated it as being of "least concern". The Highveld gerbil is a medium-sized species with soft, fluffy fur, the individual hairs having chevron patterns. It grows to a head-and-body length of about . The head is narrow, with long whiskers