Morley Read / Aerial tracking shot of a waterfall flowing over an old andesitic lava flow, Rio Pita Valley north of Cotopaxi Volcano, Ecuadorian Andes, 2018. (non-ex)

Jack Dykinga / Morning light with autumn coloured Cottonwoods (Populus sp) trees lining the river. Valley of the Gods, Colorado Plateau, of the Great Basin Desert, Utah, USA, November 2018.

Nick Garbutt / Male American Bison (Bison bison) walking through snow. Firehole River Valley, Yellowstone National Park, Wyoming, USA. January

Sebastian Kennerknecht / Snow Leopard (Panthera uncia) wild female, wet after having crossed river, in mountain valley, Uchkul River, Sarychat-Ertash Strict Nature Reserve, Tien Shan Mountains, eastern Kyrgyzstan

Nick Garbutt / North American bobcat (Lynx rufus) striding through deep snow. Madison River Valley, Yellowstone National Park, Wyoming, USA. January

Pete Oxford / Potaro River cutting through Kaieteur Gorge, Kaieteur National Park, Guyana

Chien Lee / Wallace's Flying Frog (Rhacophorus nigropalmatus) gliding, Danum Valley Field Center, Sabah, Borneo, Malaysia

David Noton / Autumn mist in Dee Valley (Dyffryn Dyfrdwy) at Horseshoe falls, near Llangollen, Denbighshire, Wales, UK, November 2013.

Hougaard Malan / Berlin falls on a summer afternoon. Panorama route, Mpumalanga, South Africa. March 2013.

Robert Thompson / River flowing from Lac de Gaube, Pyrenees National Park, Hautes Pyrenees, France, July 2013.

Enrique Lopez-Tapia / The forests of the Modi Khola river valley shrouded in fog. Annapurna Sanctuary, central Nepal, November 2011.

Kirkendall-Spring / Lower Yellowstone Falls on the Yellowstone River viewed from Artist Point, Yellowstone National Park, Wyoming, USA, June 2013.