Mongolian gerbil They are somewhat larger than mice, with a body about long (and a tail of similar length), with a body mass averaging in females and in males. The Mongolian gerbil is classified as a "prohibited new organism" under New Zealand's Hazardous Substances and New Organisms Act 1996, preventing it from being imported into the country. The species is also prohibited in the US state of California. "Meriones unguiculatus" evolved on the semideserts and steppes of Mongolia. There, they developed long legs for jumping and running from predators, teeth to deal with hard seeds and plant matter, and water conservation techniques
Anderson's gerbil usually occupy sandy dunes of deserts. The gerbil species has even been found in some solidified coastal dunes. This fact leads to say that the Anderson's gerbil is primarily found in sandy dunes along coastal regions of its distribution range. This animal can be found inland and tends to live in sandy areas of valleys or very dry areas along with being found living on mountainsides. The distribution of the Anderson's gerbil has been noted to be in coastal plains of North Africa and in the Middle East. In these countries, the animal ranges from Tunisia and northern Libya to