David Attenborough volta no tempo para investigar as origens da vida.
Martin Williams
Diretor/a
David Attenborough
Self - Presenter
Philip Donoghue
Self - Palaeontologist, University of Bristol
Justin Marshall
Self - Marine Neurobiologist, University of Queensland
Guy Narbonne
Self - Palaeontologist, Queen's University, Ontario
Jim Gehling
Self - Palaeontoloigst, South Australia Museum