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Published on Feb 15, 2012
More about this programme: http://www.bbc.co.uk/programmes/b01ckw5g One of the main reasons that grasslands began to take over from the forests 6 million years ago was that grasses were supremely adapted to start and survive fires.
At a natural park in South Africa, Professor Iain Stewart experienced first-hand the ferocity of a grassland fire. He wore a specially supplied fireproof suit equipped with thermometers. The whole event was also filmed with a heat-sensitive camera. It was a unique experiment and the results were extremely interesting.