 Captive or controlled animals are often photographed instead of true wild specimens, although it is arguable as to whether this constitutes true wildlife photography.The world's largest photography organizations, the Photographic Society of America, the Fédération Internationale de l'Art Photographique and the Royal Photographic Society have agreed on a definition for nature and wildlife photography that will be applied to photography competitions.The techniques of wildlife photography differ greatly from those used in landscape photography.