Elephants kept appearing in wrinkled herds ... the pachyderms were moving at the edge of the Kalahari Desert in Namibia in a community-run wildlife reserve, or conservancy, called Nyae Nyae ...

With elephants paving the way ... The Okavango Delta does not just appear in the middle of the Kalahari Desert, it is built. In a perfectly balanced cycle renewed each year by trillions of ...