Sorry, this episode is not currently available

The Challenger

How to Grow a Planet Episode 3 of 3

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.

Release date:

1 hour

Last on

Wed 28 Mar 2012 00:00


Role Contributor
PresenterIain Stewart
ProducerNick Shoolingin-Jordan
DirectorNick Shoolingin-Jordan
Series ProducerAndrew Thompson
Executive ProducerMark Hedgecoe