Watch Brown hyenas ghosts Of The Great Salt Lake

Resilient and elusive, the brown hyena lives in one of the harshest habitats on earth-the scorching makgadikgadi salt pans of Botswana. Coping for months on end without even a drop of fresh water, the hyena is superbly adapted for its environment. But can it overcome man's brutality? researcher Glyn Maude as he stalks these ghostly creatures of the night and discovers their incredible survival