This Silver Commemorative coin from Mongolia depicts the long-eared jerboa with a genuine Swarovski element used for the eye.
The reverse displays the Mongolian coat of arms and the coin’s value, 500 togrog.
The Jerboa is a species that is only found in the Gobi Desert. It can jump up to 50 times the height of its body, and its ears are twice as big as its head.
The Long-eared Jerboa, Euchoreutes naso, is a nocturnal mouse-like rodent with a long tail, long hind legs for jumping, and exceptionally large ears. It is distinct enough that authorities consider it to be the only member of both its genus, Euchoreutes, and subfamily, Euchoreutinae.
Long-eared jerboas are found in the Palearctic ecozone. The specific palearctic ecozone areas they are found in are southernmost Mongolia to the Takla-Makan Desert, Mengxin, Aerijin Mountain, and Qing-Zang Plateau regions of north western China. Long-eared jerboas in most cases are nocturnal, The long eared jerboa's fur according to the book 100 animals to see before they die "is reddish yellow to pale russet with white underparts."
The Long-eared Jerboa's head and body length measures 70 mm (2.8 in) to 90 mm (3.5 in) while its tail is double this size, between 150 mm (5.9 in) and 162 mm (6.4 in). Like its disproportionately long tail, its hind feet are also large, helping it to jump high, measuring between 40 mm (1.6 in) and 46 mm (1.8 in). It weighs 24 g (0.85 oz) to 38 g (1.3 oz). Long Eared Jerboas usually eat insects. They use sound to locate and capture them by performing fast leaps into the air.