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Aging in the WildExperts take a look into the physiological secrets and factors that determine life expectancy in various animals.

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Aging in the WildExperts take a look into the physiological secrets and factors that determine life expectancy in various animals.Restart available0World's Wildest City: AnchorageAnchorage is home to a huge number of wild porcupines, living in the city's parks, gardens and streets; almost twice the average size, Anchorage's porcupines search for food in the city and find refuge during Alaskan winters.

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