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Voyage of Darwin's Beagle: On The Future of SpeciesThe clipper crosses the Strait of Magellan; Redmond examines the value of salmon farms; Sarah retraces Darwin's journey into the Andes Mountains, an expedition he considered to be one of the highlights of his voyage.

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Now PlayingVoyage of Darwin's Beagle: On The Future of SpeciesThe clipper crosses the Strait of Magellan; Redmond examines the value of salmon farms; Sarah retraces Darwin's journey into the Andes Mountains, an expedition he considered to be one of the highlights of his voyage.0The Disaster DiariesNatural disasters claim 20,000 lives and cause more than $42 billion in damage during 2015, a year marked by tropical storms, drought and hot weather around the world.

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