Series looking at three of the world's most iconic wild places and how they have been shaped over time by man.

More than anywhere, the Serengeti is synonymous with wilderness and has even come to represent Africa. But the story of the Serengeti is just as much about humans as it is about wildlife.

Unreported World goes undercover to investigate how the increased Chinese presence in East Africa has lead to a huge increase in elephant poaching, with potentially devastating effects on tourism and the local economy. The team also hears astonishing claims that when Chinese president Hu Jintao travelled to Tanzania for a state visit, his officials left with large quantities of illegal ivory.

Aidan Hartley reports from his home town in Kenya on an extraordinary project to rescue the children who live on its streets.

In four years, more than 40 Kenyan athletes have failed doping tests. Ade Adepitan visits Kenya as it faces a World Anti-Doping Agency deadline to put its house in order.