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The First Americans

Who were the first Americans? Plus plans for the world’s new tallest building in Jeddah; the West Antarctic glaciers retreat; Borneo Bat defence.

Deep within a water filled cave, the 13,000 year old remains of a teenage girl were found by divers. The DNA extracted from the girl’s teeth reveals an interesting twist on the possible origin of the first Americans. James Chatters led the international team behind the work and tells Science in Action more about their discovery.

Kingdom Tower
Plans for the world’s new tallest building are underway. The Kingdom Tower is the latest Saudi Arabian wonder; on its completion one may look out across the city of Jeddah from a kilometre up.

West Antarctic Glacier Melt
Ominous research emerges from NASA. It has been concluded that the retreat of the West Antarctic Glaciers is now irreversible. These sections alone will raise sea levels by more than one metre. BBC Science Correspondent Jonathan Amos reports.

Insects Sounds
Resident zoologist Dr Tim Cockerill continues his global investigations of the planet’s most curious insects. This time he’s learning that insects can have different accents, as well as some very strange sound defence mechanisms.

(Photo caption: Divers Alberto Nava and Susan Bird transport the Hoyo Negro skull to an underwater turntable so that it can be photographed in order to create a 3-D model. Image courtesy of Paul Nicklen/National Geographic)

Presenter: Jack Stewart
Producer: Ania Lichtarowicz

Available now

29 minutes

Last on

Mon 19 May 2014 03:32GMT


  • The First Americans

    A new discovery may show an important link to America’s past.

    Duration: 04:18

  • The Kingdom Tower

    Plans for the new kilometre high building in Jeddah are underway.

    Duration: 09:13

  • The West Antarctic Glaciers

    NASA confirms the melting of these glaciers is now irreversible.

    Duration: 06:23

  • Insect Sounds

    Tim Cockerill reports on some of the more unusual insect noises.

    Duration: 06:34


  • Thu 15 May 2014 18:32GMT
  • Fri 16 May 2014 01:32GMT
  • Fri 16 May 2014 08:32GMT
  • Mon 19 May 2014 03:32GMT

Gravitational Waves

Gravitational Waves

Gravity and ripples in the fabric of space time - what do these mean for us?