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An elephant at the Mashatu game reserve on July 26, 2010 in Mapungubwe, Botswana. Mashatu is a 46,000 hectare reserve located in Eastern Botswana where the Shashe river and Limpopo river meet.  (Photo by Cameron Spencer/Getty Images)
An elephant at the Mashatu game reserve on July 26, 2010 in Mapungubwe, Botswana. Mashatu is a 46,000 hectare reserve located in Eastern Botswana where the Shashe river and Limpopo river meet.  (Photo by Cameron Spencer/Getty Images)

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    New elephant study shows catastrophic decline in Africa

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New elephant study shows catastrophic decline in Africa

An ambitious project to count all of Africa's elephants from the air has revealed a catastrophic decline. CNN's David McKenzie has the exclusive report.

New elephant study shows catastrophic decline in Africa

An ambitious project to count all of Africa's elephants from the air has revealed a catastrophic decline. CNN's David McKenzie has the exclusive report.