David Attenborough volta no tempo para investigar as origens da vida.
Martin Williams
Diretor/a
David Attenborough
Self - Presenter
Justin Marshall
Self - Marine Neurobiologist, University of Queensland
Jean-Bernard Caron
Self - Palaeontologist, Royal Ontario Museum
Mary Droser
Self - Palaeontologist, University of California
Guy Narbonne
Self - Palaeontologist, Queen's University, Ontario