Gobi jerboa sibirica annulata". The Gobi jerboa was differentiated from "A. sibirica sibirica" because of its enlarged and globular auditory bullae, and its nearly vertical upper incisors (Allen 1925). Today, there have been 163 recorded occurrences of the Gobi jerboa, however there is currently no known data that examines its population status (The Global Biodiversity Information Facility 2013 and Batsaikhan et al. 2008). The Gobi jerboa is native to China and Mongolia (Smith and Xie 2008). In China, the Gobi jerboa extends east into Xinjiang, west into Nei Mongol, and north into Gansu. In Mongolia, the gobi jerboa can be found in
Badain Jaran Desert It is bound to the north by the Gobi and to the East by Mount Lang which separates it from the Ulan Buh Desert (Pinyin: wū lán bù hé shā mò Chinese: 乌兰布和沙漠) Although most of the dunes in the desert are not stationary, the larger ones usually ranging above are static. With these dunes only the shallow surface of the sand is constantly shifting. The middle and lower layers of the highest dunes have been compacted for more than 20,000 years causing the sand particles to harden resulting in solid layers of sand and sandstone. High moisture levels inside