Africa, The Future, BBC One, 9pm
In tonight's final episode of Africa, Sir David Attenborough warns about the potential future for the continent's wildlife and focusses on the importance of conservation efforts. In Kenya, he has a memorable encounter with a young rhino called Elvis whose horn has been removed to protect him from poachers (see the emotional clip below). David will also examine the challenges elephants face with a growing human population encroaching on their habitat and he meets Maasai warriors who have become lion guardians. A poignant finale to what has been an epic and beautiful series.