Thirty-six years ago, when Mike Gunton joined the BBC’s Natural History Unit as a keen young producer at the start of his career, he was told that he’d be working on David Attenborough’s last-ever programme. It was The Trials of Life, a study in animal behaviour, and Attenborough, in his sixties then, thought it was time to stop. “Well, that seems hilarious now,” says Gunton. “I don’t know how many series he’s done since, but it must be 20 at least. Long may it last.”
The pair have worked together for almost four decades – Gunton is now 66 and Attenborough 97 – and their latest project is Planet Earth III, which airs its final episode tonight. Just like its two predecessors, which were broadcast in 2006 and 2016, the series has shown us spectacular stories from across the animal kingdom – from a minutes-old ostrich hatchling searching for its mother in the Namib desert to a group of courageous seals driving away great white sharks off the coast of South Africa. But a new element to the show, and one that is increasingly present in Attenborough’s other programmes, is its message: this series is all about how animals are being forced to adapt, to survive the challenges they face in a world changed by humans.