In honor of Sir David Attenborough's 60th anniversary on television, this three-part miniseries focuses on three fields that David Attenborough feels have been transformed most profoundly: filmmaking, science and the environment. Richly illustrated with the sequences (re-mastered in HD) that Attenborough has spent 60 years capturing, new interviews in which he revisits the content, stories and locations that were featured in his landmark series, and packed with the personal anecdotes of the BBC's most accomplished raconteur, "Attenborough's Life Stories" is a singular synopsis of a unique half-century plus. In "Understanding the Natural World," Sir David Attenborough shares his memories of the scientists and the breakthroughs that helped shape his own career. He also recalls some of his more hair-raising attempts to bring new science to a television audience: standing in the shadow of an erupting volcano as lumps of hot lava crashed around him or being charged by a group of armed New Guinean tribesmen.