May contain upsetting scenes for some viewers. Our journey starts in the capital Bishkek, Kyrgyzstan's capital, where Dan meets some of the people who’ve been dedicating their lives to saving an animal that’s almost invisible. Subscribe: bit.ly/BBCEarthSub Join BBC Earth as we mark Earth Day 2021 with a closer look at the beauty and fragility of our planet, inspecting the impact certain species have on specific ecosystems that help to balance this world. For more, head over to BBCEarth.com/earthday Dan O’Neill: Director and Presenter Chris Beard: Director of Photography. With thanks to Dr Dale M. Kikuchi of Tokyo Institute of Technology & Dr Kodzue Kinoshita of Kyoto University for the use of their camera trap footage. With thanks to Dr Dale M. Kikuchi of Tokyo Institute of Technology & Dr Kodzue Kinoshita of Kyoto University for the use of their camera trap footage. And to Dr Koustubh Sharma, Snow Leopard Trust and Kubanychbek Zhumabai Uulu, Snow Leopard Foundati...