Snapping up a frog, a Nile crocodile takes a small meal. Despite fearsome looks and predatory ways, crocodiles are disappearing in the wild from hunting and habitat loss. (1978) photog. Jonathan Blair
Across the fiery face of Africa's Namib Desert a sidewinding adder sculpts artistic body prints in sunbaked sand that stretches for 1,300 miles along the continent's southwest coast. (1983) photo: Carol and David Hughes
A balloon vendor runs across a street with a trailing mass of balloons in Buenos Aires, November 1921. Photo: Newton W. Gulick; for National Geographic | src 125 Years of National Geographic Photography · Christie’s