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
Cheesman's gerbil shrubby plant, and the gerbil closes the entrance when it enters by flicking sand across with its tail. It is preyed on by predators such as owls, the Arabian red fox and Rüppell's fox. "G. cheesmani" is a common species, has a wide range and is presumed to have a large total population. The population trend seems to be stable and no particular threats to the animal have been identified. The International Union for Conservation of Nature has assessed its conservation status as being of "least concern". Cheesman's gerbil Cheesman's gerbil ("Gerbilus cheesmani") is a small rodent in the subfamily