ナショナルジオグラフィックのインスタグラム(natgeo) - 9月2日 17時40分

Photo @Cory Richards A large termite mound, once host to the long dead tree protruding from its side stands near Chitabe, Okavango Delta. 70% of all of the Deltas islands began as termite mounds. "The islands of the Okavango Delta vary in size from the smallest single termite mound to the large body of land that dissects the delta known as Chief's Island. The extent of the islands is only really appreciated in the dry season when the delta is in full flood and the land parts above the high water mark stand out, barren against the lush waterlogged plains. Many of the islands are encircled by lush riverine vegetation of tall trees and 'thick' bushes, and have a center of desolate white soil. This happens when the trees encircling the island transpire, leaving large amounts of trace minerals in the soil which then becomes too 'acidic' for any plants to grow. The physical nature of the Okavango Delta is constantly changing as termites and hippos reshape the landscape as the seasons' progress - new islands are formed whilst others are swallowed up by the trampling of animals and the arrival of the floodwaters." Shot on assignment for @ナショナルジオグラフィック with @intotheokavango For more images from the trip follow @Cory Richards and @intotheokavango

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