The Challenger

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Episode 3 of 3

Duration: 1 hour

In this series Professor Iain Stewart tells a stunning story about our planet. He reveals how the greatest changes to the earth have been driven, above all, by plants.

In the third episode, Iain discovers the remarkable impact of just one plant: grass. On the savannah of South Africa he sees how grass unleashed a firestorm to fight its greatest enemy, the forests. He shows how cutting your finger on a blade of grass shows us how it transformed life in the oceans. In Senegal, he meets the cleverest chimps in the world. And, in the ruins of the oldest temple on Earth, he tells the extraordinary story of how grass triggered human civilisation.

More episodes

See all episodes from How to Grow a Planet

Credits

Presenter
Iain Stewart
Presenter
Iain Stewart
Producer
Nick Shoolingin-Jordan
Producer
Nick Shoolingin-Jordan
Director
Nick Shoolingin-Jordan
Director
Nick Shoolingin-Jordan
Series Producer
Andrew Thompson
Series Producer
Andrew Thompson
Executive Producer
Mark Hedgecoe
Executive Producer
Mark Hedgecoe

Broadcasts

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Available on: DVD or Video download

From suppliers including: Amazon, BBC Shop, iTunes

Where to buy

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