TONY CAMACHO / SCIENCE PHOTO LIBRARY TONY CAMACHO / SCIENCE PHOTO LIBRARY
Female nyalas (Tragelaphus angasi) drinking from a river. These antelope live in herds of between 6 and 40 animals on the plains and in the mountainous regions of South Africa, often in fringe forests alongside rivers. They belong to a group known as the spiral-horned antelopes, although only the males possess horns. Photographed in Mkuze, South Africa.
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