One of the nation's most popular presenters examines twenty marvels of the natural world from his extraordinary and pioneering experiences.What was Sir David's first pet? Which animal would he most like to be? What creature lays 'the biggest egg in the world'? How do you communicate with an ancient nomadic community in Fiji? And what did Sir David do when confronted by a ten-foot-long reptile? His enthusiasm is as infectious as ever, and conveys a unique fascinatio... >Voir plus