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The naturalist asks why the Large Blue butterfly died out in the UK - and the challenge of its reintroduction. From 2009.

The Large Blue butterfly died out in Britain in 1979, but why?

Investigations pointed to a complex life cycle linked to a single species of ant.

With this knowledge the Large Blue was re-introduced into the British countryside, but there is a sinister twist in the tale, in the form of a parasitic wasp.

Series of talks by Sir David Attenborough on the natural histories of creatures and plants from around the world.

Producer: Julian Hector.

First broadcast on BBC Radio 4 in October 2009.

10 minutes

Last on

Mon 28 Jul 202501:45

Broadcasts

  • Fri 9 Oct 200920:50
  • Sun 11 Oct 200908:50
  • Fri 15 Jan 201014:00
  • Sat 16 Jan 201004:00
  • Sun 20 Dec 201511:50
  • Sun 20 Dec 201519:50
  • Sun 3 Dec 201707:05
  • Sun 3 Dec 201714:05
  • Mon 4 Dec 201702:05
  • Sun 24 Nov 201911:50
  • Sun 24 Nov 201919:50
  • Sun 7 Mar 202110:45
  • Sun 7 Mar 202121:45
  • Thu 11 Mar 202111:45
  • Thu 11 Mar 202121:45
  • Sun 7 Aug 202210:45
  • Sun 7 Aug 202221:45
  • Thu 11 Aug 202211:45
  • Thu 11 Aug 202221:45
  • Sun 15 Oct 202310:45
  • Sun 15 Oct 202315:45
  • Sun 15 Oct 202321:45
  • Mon 16 Oct 202304:45
  • Sun 15 Sep 202406:45
  • Sun 15 Sep 202411:45
  • Sun 15 Sep 202417:45
  • Mon 16 Sep 202401:45
  • Sun 27 Jul 202506:45
  • Sun 27 Jul 202511:45
  • Sun 27 Jul 202517:45
  • Mon 28 Jul 202501:45