I shot this image when I was flying in a helicopter over the giant sand dunes of Sossusvlei. It is rare to see gemsboks [Oryx gazella] in the area, but there was abundant grass in the valley (due to unusual rains in the preceding months). I was fortunate to take this shot when the Oryx were running towards the dune edge. The captivating line of the dune creates a desert yin-yang with perfect natural balance between the bright and dark sides.