Klein & Hubert / Long eared jerboa (Euchoreutes naso) digging a burrow at night, Gobi desert at dawn. Mongolia

Klein & Hubert / Long eared jerboa (Euchoreutes naso), Gobi desert, portrait, Mongolia

Klein & Hubert / Long eared jerboa (Euchoreutes naso), Gobi desert, portrait, Mongolia

Klein & Hubert / Long eared jerboa (Euchoreutes naso) digging a burrow with teeth, Gobi desert, Mongolia

Klein & Hubert / Long eared jerboa (Euchoreutes naso) jumping, Gobi desert at dusk, Mongolia

Klein & Hubert / Long eared jerboa (Euchoreutes naso) jumping, Gobi desert, Mongolia

Klein & Hubert / Long eared jerboa (Euchoreutes naso) jumping, Gobi desert at dusk, Mongolia

Klein & Hubert / Long-eared jerboa (Euchoreutes naso) jumping, Gobi desert at dusk, Mongolia

Klein & Hubert / Long eared hedgehog (Hemiechinus auritus) walking on a dune bordering the Gobi desert at dusk, The dunes bordering the desert have at their bottom circular green patches rich in insects, Mongolia

Klein & Hubert / Long eared hedgehog (Hemiechinus auritus) walking on a dune bordering the Gobi desert at dusk, The dunes bordering the desert have at their bottom circular green patches rich in insects, Mongolia

Klein & Hubert / Long eared hedgehog (Hemiechinus auritus) walking, dunes bordering the Gobi desert. The dunes bordering the desert have at their bottom circular green patches rich in insects, Mongolia

Klein & Hubert / Young Eagle hunter (Berkutchi) with his Golden eagle (Aquila chrysaetos) portrait, Altai, Mongolia. Model released.

Klein & Hubert / Kazakh eagle hunter (Berkutchi) on horseback with his Golden eagle (Aquila chrysaetos) Altai, Mongolia. Model released.

Klein & Hubert / Long-eared jerboa (Euchoreutes naso) at sunrise. Gobi Desert, Mongolia.

Hermann Brehm / Snow Leopard (Panthera uncia) climbing steep rock face, Mongolia

Valeriy Maleev / Pallas's cat kitten (Otocolobus manul) Sukhe-Batar Aimag, South Gobi Desert, Mongolia. June.

Valeriy Maleev / Long-eared jerboa (Euchoreutes naso) digging, South Gobi Desert, Mongolia. June. Did you know that the Long-eared jerboa is the mammal with the largest ears in proportion to its body size?

Valeriy Maleev / Snow leopard (Uncia uncia) walking, Altai Mountains, Mongolia. March.

Valeriy Maleev / Snow leopard (Uncia uncia) Altai Mountains, Mongolia. March.

Valeriy Maleev / Pallas's cat (Otocolobus manul) walking in snow, Gobi Desert, Mongolia. December.

Inaki Relanzon / Khongor sand dunes, Govi Gurvan Saikhan National Park, Gobi Desert, South Mongolia. June 2015.

Inaki Relanzon / Elm tree (Ulmus) in Gobi desert, South Mongolia.

Inaki Relanzon / Animal petroglyphs between 5,000-15,000 years old years ago, Khavtsgait Petroglyph Mountain, Gobi desert, Govi Gurvan Saikhan National Park, South Mongolia. June 2015.

Konstantin Mikhailov / Mongolian five-toed jerboa (Allactaga sibirica) digging burrow, Gobi, Mongolia, August.

Konstantin Mikhailov / Pallas's sandgrouse (Syrrhaptes paradoxus) group of four flying against blue sky, Gobi Desert, Mongolia, August.

Roland Seitre / Przewalski horses (Equus ferus przewalskii) mother and foal, reintroduced in Takhin Tal by the International Takhi Group, Gobi Desert, Mongolia.

Kristel Richard / Two wild Przewalski / Takhi Horse (Equus ferus przewalskii) stallions play fighting Hustai National Park, Tuv Province, Mongolia. Endangered species. September.

Kristel Richard / Wild Mongolian mare and her foal trotting, plains at the foot of Dungurukh Uul mountain, near the border with China and Kazakhstan, Bayan-Olgiy aymag, Mongolia. September.

Kristel Richard / Przewalski / Takhi Horse (Equus ferus przewalskii) breeding stallion stands alert, Hustai National Park, Tuv Province, Mongolia. Endangered species. September.

Kristel Richard / Eagle hunter mounted on Mongolian horse with his female Golden eagle (Aquila chrysaetos) at Eagle Hunters Festival, near Sagsai, Bayan-Ulgii Aymag, Mongolia. September 2014..

Kristel Richard / Band of wild Mongolian horses running on plains at the foot of Dungurukh Uul mountain, near the border with China and Kazakhstan, Bayan-Olgiy aymag, Mongolia. September.

Roland Seitre / Mongolian mid-day gerbil (Meriones meridianus) portrait, Mongolia. Captive.

Roland Seitre / Przewalski's steppe lemming (Eolagurus przewalskii) near entrance to burrow in desert, Mongolia.

Roland Seitre / Herd of Mongolian argali (Ovis ammon darwini) standing on rocky outcrop on the plains, Mongolia.

David Tipling / The Khongoryn Els sand dunes, Southern Gobi desert, Mongolia. October.

David Tipling / The Khongoryn Els sand dunes, Southern Gobi desert, Mongolia. October.

Paul Williams / Two Pallas's cat (Otocolobus manul) kittens waiting at their den for their mother to return from hunting, Mongolia, June, 2017. Filmed for BBC series 'Big Cats'

Paul Williams / Female Pallas's cat (Otocolobus manul) suckling kittens, Mongolia, June, 2017. Filmed for BBC series 'Big Cats'.

Paul Williams / Female Pallas's cat (Otocolobus manul) suckling kittens, Mongolia, June, 2017. Filmed for BBC series 'Big Cats'.

Paul Williams / Female Pallas's cat (Otocolobus manul) with three kittens at their den site, Mongolia, June, 2017. Filmed for BBC series 'Big Cats'.

Paul Williams / A female Pallas's cat (Otocolobus manul) with two young kittens hiding amongst rocks at their den site, Mongolia, June, 2017. Filmed for BBC series 'Big Cats'.

Paul Williams / Pallas's cat (Otocolobus manul) kitten waiting at den for mother to return, Mongolia. June. 2017. Filmed for BBC series 'Big Cats'.

Paul Williams / Pallas's cat (Otocolobus manul) kitten waiting at den for mother to return, Mongolia. June. 2017. Filmed for BBC series 'Big Cats'.

Paul Williams / Two Pallas's cat (Otocolobus manul) kittens waiting at den while their mother is hunting, Mongolia, June, 2017. Filmed for BBC series 'Big Cats'.