Moment of Clarity: The natural world is critical for human survival
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In this Moment of Clarity, film maker and free diver Craig Foster discusses the breathtaking documentary of the relationship he formed with an octopus while snorkelling in the kelp forest in Cape Town near Camps Bay. It has caught the world's attention and Foster tells Linda van Tilburg that he hopes it will remind people why nature must be protected - if humans are to survive.