David Attenborough reviews the most exciting scientific discoveries that have transformed our view of life on earth during his lifetime. How and where did life first begin? How do continents move? How do animals communicate? And why do they behave the way they do?In a story of individual passions, dedication and ingenious insights he 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 - by standing in the shadow of an erupting volcano as lumps of hot lava crashed around him, by being charged by a group of armed New Guinean tribesmen and the extraordinary sight of chimps hunting monkeys, captured on camera for the first time by Attenborough and his team.