A baby Khulan near Khanbogd.
The Gobi khulan (Equus hemionus luteus) and the Mongolian wild ass (Equus hemionus hemionus) are a subspecies of the onager. It is found in Mongolia and northern China, and was previously found in Kazakhstan before being extinted through hunting. Mongolian Khulans are known to dig holes at dry river beds and water sources to access to subsurface water to drink in response of the lack of water during hot summers in the Gobi Desert. Watering holes dug by khulans are also used by other species (wild and domestic) as well as by humans to access to water.