Africa: Sahara

David Attenborough explores the wildlife eking out an existence in and around the scorching wilderness of the Sahara, where only the toughest survive. It's a constant struggle against dehydration, as zebra battle over dwindling rivers, camels search for water and tiny barn swallows navigate thousands of square miles of barren sand to find a life-saving oasis. The naked mole rat avoids the heat by living a subterranean existence, while the silver ant is able to take on the midday sun - but needs a `spacesuit" to do it