Ben Fogle: The adventurer talks frostbite, flesh-eating bugs - and an

Being on an expedition is about deprivation Whether its trekking through the jungles in Peru or hiking up Kilimanjaro, you really value the resources you have: one pair of pants, limited rations of food, limited battery power. My trips also remind me what I have left behind. Once I'm back home, I'll really value what I have, until I start to become complacent – then I'll go off around the world again.

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Talks and tigers are a natural attraction

My book on migration, The Mara Crossing, took seven years. I put the birds and animals first, so their dangerous journeys could show that the drive to find better living conditions is universal and that human migration, a burning political topic everywhere today, is as natural as that of animals. Both are done to survive, both are part of the self-renewing nature of all life.