Africa, final episode, BBC One, review Africa (BBC One) ended with an emotional finale. David Attenborough's familiar, soothing narration has guided us through some amazing sights over six episodes but The Future was an 86-year-old's urgent love letter to our planet. There was a world-weariness to Attenborough's voice as he talked about endangered animals. The gelada baboons are facing wipe-out, gorillas are threatened and the black rhinoceros has been hunted to the point of extinction. Its horn is worth its weight in gold, attracting grubby hunters and organised crime bosses. All black rhinos in Uganda and Rwanda have been slaughtered and just 600 are left in Kenya, including one called Elvis. Elvis has to be taught to be wary of that most dangerous predator: the human. And all he wants is to have his stomach tickled with a stick. The problems for Africa are enormous. Human population is growing at double the global rate and competition for space is increasing. The climate is getting hotter (80 per cent of Kilimanjaro's ice lakes have melted) and logging for hard wood is wiping out forests. And wild animals are hunted commercially for food, their meat often sold as beef (so look even closer at that supermarket burger). Africa's finale was educational and a fitting end to a superb series that took four years of painstaking filming. There were many majestic moments: the drongo bird using mimicry to trick meerkats out of their dinner; the prehistoric-looking shoebill chicks and their cruel sibling rivalry; the intimate, never-before seen, night-time interactions between rhinos. And there was the controversial scene when a baby elephant died of thirst. It was hard to explain to my nine-year-old son why no one had simply put down their camera equipment and saved the poor creature. Ah, that's nature programmes. No undivine interventions. But human intervention on a bigger scale can work. Gorongosa National Park in Mozambique, once "a wild paradise" and major tourist attraction with an abundance of animals, was destroyed by civil war and neglect. Some 95 per cent of the animals were killed. Animals are being re-introduced to Gorongosa. "It's a modern day Jurassic Park," Attenborough said optimistically.