Nature Picture Library offers the best nature photographs and footage from the world's finest photographers, to license for commercial and creative use. More than 700,000 images and video clips online, from tigers to turtles and elephants to sharks.
Andy Rouse / Polar Bear (Ursus maritimus) portrait in sea-ice landscape. Wide angle / fish-eye shot. Svalbard, Norway, September.
Ashley Cooper / Thermometer taking the air temperature as part of a study to measure the speed of the Russell Glacier near Kangerlussuaq Greenland. July 2008.
Ole Jorgen Liodden / Ice cliff of the Austfonna ice cap with melt water and ice crashing down to the sea, Svalbard, Norway, July 2012.