Inaki Relanzon / Bellos River in Aisclo Canyon, Ordesa National Park, Pyrenees, Aragon, Spain. October 2009

Martin Dohrn / Wildebeest {Connochaetes taurinus} under stars at night, Masai Mara, Kenya. Starlight image intensifier camera image taken with no artificial light

Martin Dohrn / The Southern Cross star constellation shining above Ballenites trees in Masai Mara, Kenya. Starlight image intensifier camera image taken with no artificial light.

Martin Dohrn / Lightning at night over Masai Mara Kenya, East Africa. Starlight image intensifier camera image taken with no artificial light

Martin Dohrn / Spotted hyaenas at night, Masai Mara, Kenya. Starlight image intensifier camera image taken with no artificial light, composite

Denis-Huot / Leopard (Panthera pardus) at night, Masai-Mara Game Reserve, Kenya

Martin Dohrn / Lioness at night with dilated pupils, Kenya. Starlight image intensifier camera image taken with no artificial light.