In TV & Radiofollow-up:
Steve Leonard takes a 4 billion year journey from the first spark of life to the conquering of a planet.
The recipe for life
What makes a handful of chemicals spring into life? Discover the essential ingredients that populated a planet.
Sea LifeExplore the myriad life forms of our oceans and take the Blue Planet Challenge.
Take a journey through time, from the last ancestor of chimps and humans to the emergence of modern people.
First shown April 2005
Seas of LifeProgramme 1
Land GrabProgramme 2
Living TogetherProgramme 4
Human LifeProgramme 5