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The Infinite Monkey CageSeries 35Episodes

  1. Thu 15 Oct 202611:00
    BBC Radio 4

    Guano: Liquid Gold

    Adam Rutherford and Jessica Fostekew investigate the remarkable story of bird and bat poo.

  2. Sat 17 Oct 202619:15
    BBC Radio 4

    Guano: Liquid Gold

    Adam Rutherford and Jessica Fostekew investigate the remarkable story of bird and bat poo.

  3. Thu 22 Oct 202611:00
    BBC Radio 4

    22/10/2026

    A witty, irreverent look at the world through scientists’ eyes.