PETER CHADWICK / SCIENCE PHOTO LIBRARY PETER CHADWICK / SCIENCE PHOTO LIBRARY
Male nyala (Tragelaphus angasii) walking away from a watering hole. This antelope lives in transient herds of between 2 and 40, in dense bush near water in southern Africa. It is a grazer and browser that eats a wide variety of vegetation. The male has yellow-tipped spiral horns that can grow to almost a metre in length. Photographed in Mkhuzi, South Africa.
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