Bear Grylls, star of 'Treasure Island' and 'Man vs. Wild,' shares his survival essentials

British adventurer Bear Grylls has slept inside a camel carcass, guzzled yak blood and made a wetsuit out of sealskin on the Discovery Channel’s hit survival series “Man vs. Wild.” But those are ju…

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Bear Grylls, star of 'Treasure Island' and 'Man vs. Wild,' shares his survival essentials

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