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In this first episode Iain journeys from the spectacular caves of Vietnam to the remote deserts of Africa. He sees how plants first harnessed light from the sun and created our
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In this first episode Iain journeys from the spectacular caves of Vietnam to the remote deserts of Africa. He sees how plants first harnessed light from the sun and created our life-giving atmosphere. He uncovers the epic battle between the dinosaurs and the tallest trees on the planet. And, using remarkable imagery, he shows plants breathing - and for the first time talking to each other.
In the second episode, Iain discovers how flowers have transformed our planet. He journeys to the remote islands of the South Pacific to track down the earliest flowers. In the deserts
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In the second episode, Iain discovers how flowers have transformed our planet. He journeys to the remote islands of the South Pacific to track down the earliest flowers. In the deserts of Africa and rainforests of Vietnam, he sees how they brought brilliant colour to the most barren landscapes and sculpted the earth itself. And he learns how they drove the evolution of all animals - kick-starting our human story.
On tonight's final episode of How To Grow a Planet, Professor Iain Stewart examines one of the most underrated but perhaps one of the most important plants in the world - grass.
Over
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On tonight's final episode of How To Grow a Planet, Professor Iain Stewart examines one of the most underrated but perhaps one of the most important plants in the world - grass.
Over eight million years ago, there was a drop in the atmosphere's carbon dioxide levels and as a result, many plants died off. But it was the moment grasses were waiting for, with less carbon dioxide in the air, grass started to really evolve.
On the savannah of South Africa Professor Stewart sees how grass unleashed a firestorm to fight its greatest enemy - the forests. Grass thrives on fire, and is designed to survive grass fires, regenerating quickly where trees do not. But the role of grass wasn't restricted to dry land. He explains how grass also transformed life in the ocean.
Professor Iain Stewart also explains how the global rise of grasses transformed the animal kingdom as well. Not only did grass dictate which animals would live or die, but it had the biggest impact on human beings - Professor Stewart travels to the African savannah where our earliest ancestors emerged, to understand the role that grass played.
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