Main content
Sorry, this episode is not currently available

The Americas

Alice Roberts investigates how humans may have reached North and South America, looking at routes across the Canadian ice sheet and from Australia across the Pacific.

For Stone Age people, reaching North and South America seems impossible - on each side vast oceans, and to the north an impenetrable ice sheet that covered the whole of Canada. So how did the first Americans get there?

Dr Alice Roberts discovers evidence for an ancient corridor through the Canadian ice sheet that may have allowed those first people through. But there are problems - in particular some very ancient finds in southern Chile seem to suggest a very different way in to the Americas. Amazingly, an ancient human skull discovered in Brazil even points to an Australasian origin of the Americans. Could a route from Australia across the Pacific have been possible? A surprising answer to the problem eventually comes from a Canadian forensic scientist more used to solving murder cases.

59 minutes

Last on

Wed 6 Feb 2019 02:00

More episodes



You are at the last episode

See all episodes from The Incredible Human Journey


Role Contributor
Presenter Alice Roberts
Director Peter Oxley
Producer Paul Bradshaw
Executive Producer Kim Shillinglaw


  • Sun 14 Jun 2009 21:00
  • Sun 14 Jun 2009 22:50
  • Mon 15 Jun 2009 21:00
  • Thu 25 Jun 2009 00:50
  • Fri 25 Sep 2009 00:00
  • Sat 12 Nov 2016 20:00
  • Thu 17 Nov 2016 23:00
  • Sat 21 Oct 2017 19:00
  • Tue 5 Feb 2019 20:00
  • Wed 6 Feb 2019 02:00

Origins of Us

Origins of Us

Science series telling the story of human evolution through changes in human anatomy