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A look at animal migration in a changing world. In Mexico, millions of Monarch butterflies pour into the trees for the winter.

26 minutes

Last on

Sun 21 Sep 200803:32GMT
BBC World Service Online

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Episode 2Animal Migration in a Climate of Change

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Broadcasts

  • Thu 18 Sep 200809:32GMT
    BBC World Service Online
  • Thu 18 Sep 200815:32GMT
    BBC World Service Online
  • Thu 18 Sep 200819:32GMT
    BBC World Service Online
  • Fri 19 Sep 200800:32GMT
    BBC World Service Online
  • Sat 20 Sep 200810:32GMT
    BBC World Service Online
  • Sun 21 Sep 200803:32GMT
    BBC World Service Online

BBC World Service Archive

BBC World Service Archive

This programme was restored as part of the World Service archive project