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Ranulph Fiennes and Mike Stroud
Ranulph Fiennes and Mike Strout attempt seven marathons, across seven continents
Ranulph Fiennes and Mike Strout attempt seven marathons, across seven continents in seven days. A representative of the British Heart Foundation discusses the run, the impact on their bodies and the impact of heart surgery on running. Also on the programme: research suggests a larger number of fish than previously assumed.
Presenter: Nicola Barringer.
