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60 Harvests and statistically savvy parrots

Can there really only be 60 harvests left in Earth's soil? Plus we meet the parrots who understand probability.

A listener asks if there can really only be 60 harvests left in Earth's soil. Are we heading for an agricultural Armageddon? Plus we meet the parrots who are the first animals, outside humans and great apes, to be shown to understand probability.

(image: the highly intelligent and endangered Kea parrots of New Zealand / Credit: Imogen Warren/Getty images)

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9 minutes

Last on

Mon 25 May 2020 15:50GMT
BBC World Service except Australasia, East and Southern Africa & West and Central Africa

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Broadcasts

  • Sat 23 May 2020 17:50GMT
    BBC World Service Australasia & South Asia only
  • Sun 24 May 2020 05:50GMT
    BBC World Service
  • Mon 25 May 2020 08:50GMT
    BBC World Service
  • Mon 25 May 2020 12:50GMT
    BBC World Service East and Southern Africa & West and Central Africa only
  • Mon 25 May 2020 15:50GMT
    BBC World Service except Australasia, East and Southern Africa & West and Central Africa

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