It was an audacious approach. Behind the scenes at the BBC, Attenborough had to face down complaints that ‘green slime is not the way to start off a big series’. Yet the gamble paid off, not least because the opening episodes featured images of such startling close-up intimacy that even some of the world’s tiniest creatures kept everyone glued to their sets. In the penultimate episode, viewers witnessed the most extraordinary sequence of all. The idea, Attenborough explained, had been for him to be filmed on a Rwandan mountainside explaining the evolution of the opposable thumb while gorillas
...more