Image above: The Okavango's annual flood edges closer to the Xudum pride's territory. Botswana’s Okavango Delta is one of the most remarkable and unique ecosystems on Earth. Image above ...

Seen from space, high above Africa ... its own sake and the sake of the Okavango Delta. Neef, besides trapping fish, also saw to the gathering of water-quality data from two delicate sensors ...

After their first year in partnership, National Geographic and De Beers have taken invaluable steps toward helping to preserve the Okavango ... timing and quality of the annual Delta flood.