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ف1 · قسمت 8 — Cities: Surviving the Urban Jungle · 2011-03-03

A look at the man-made environment: the city. Over half of the world's population now lives in the urban jungle. The city is built to keep untamed nature out - but nature can't be pushed away. From bed bugs sucking blood at night to rats in our restaurants, many animals have adapted to a life in man's creation.