Tony Wu / Bowhead whale (Balaena mysticetus), group socialising in shallow water, aerial view. Part of larger group of more than 50 whales congregating, Sea of Okhotsk sub-population, Russia.

Ingo Arndt / Sun rising over ice formations on Lake Baikal. Siberia, Russia. February 2019.

Valeriy Maleev / Amur leopard (Panthera pardus orientalis) walking in snow, Land of the Leopard National Park, Primorsky Krai, Far East Russia. February.

Valeriy Maleev / Siberian musk deer (Moschus moschiferus) male, Irkutsk, Russia. March.

Gavin Hellier / Timelapse from day to night looking towards the Peter and Paul Fortress, St, Petersburg, Russia, May 2016. Hellier

Sergey Gorshkov / Black Grouse (Tetrao tetrix) males fighting at lek in the snow, Tver, Russia. April

Sergey Gorshkov / Moonrise at twilight, Putoransky State Nature Reserve, Putorana Plateau, Siberia, Russia

Sergey Gorshkov / Sunset over Putoransky State Nature Reserve, Putorana Plateau, Siberia, Russia, October.

Michel Roggo / Meltwater channel through icefield in the Temnik River, Baikal Nature Reserve, Buryatia, Siberia, Russia, May 2015.

Michel Roggo / Autumn trees viewed from below Lake Baikal, Lake Baikal UNESCO World Heritage Site, Siberia, Russia. May 2013. Photographed for The Freshwater Project.

Sergey Gorshkov / Plume of volcanic ash lit by a basaltic lava flow from the Tolbachik volcano complex, Kamchatka, Far East Russia, eruption lasted from December 22nd 2012 through to January 2nd 2013

Sergey Gorshkov / Plume of volcanic ash lit by a basaltic lava flow from the Tolbachik volcano complex, Kamchatka, Far East Russia, eruption lasted from December 22nd 2012 through to January 2nd 2013