From commissioning classics to how he became a TV host, the amazing life of Sir David Attenborough as he turns 100

AS a boy, Sir David Attenborough was leafing through an old book when he stumbled upon the words that changed his life. They were in a 19th Century work called The Malay Archipelago, which contained a description by naturalist Alfred Russel Wallace of his emotions when he first saw a bird of paradise in the...