Photographer Paul Nicklen :: Huge footprints reveal a polar bear’s path on Svalbard, Norway’s Arctic archipelago. Fur grows even on the bottom of a bear’s paws, protecting against cold and providing a good grip on ice.
Her Eyes! Steve McCurry's iconic photograph of a young Afghan girl in a Pakistan refugee camp appeared on the cover of National Geographic magazine's June 1985 issue and became the most famous cover image in the magazine's history
15 of National Geographic's most iconic photographs
Picture of Robyn Davidson - After walking almost miles across the heart of the Australian Outback, Davidson and her camels arrived at the Indian Ocean. Never having seen a body of water larger than a puddle before, her camels were mesmerized.
June 2013 Fennec Fox, Morocco Photograph by Francisco Mingorance The fennec, or desert fox, is a canine mammal species of the genus Vulpes, which inhabits the Sahara Desert and Arabia. This is the smallest species of the family Canidae.
Emperor penguins are Olympian swimmers, capable of diving to feet and remaining underwater 20 minutes on a single breath. "I was mesmerized by their beautiful bubble trails," says Nicklen, who braved water to capture these images for National Geographic.