Africa's Albertine Rift

Synopsis
The Albertine Rift covers just one percent of the Africa's area, but contains more species of vertebrate animal than anywhere else on the continent. Powerful forces below the Earth transformed the landscape and changed the climate. These radical changes forced animals and plants to mutate and evolve in strange directions in order to survive. The Rift split our closest relatives, the chimpanzees, into two contrasting species, and may even hold the secrets of why our ancestors evolved to walk on two legs...