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Africa's poaching problem

The carcass of a rhino is seen after it was killed for its horn by poachers at the Kruger national park in Mpumalanga province, South Africa September 14, 2011.

Africa's poaching crisis

Africa's

biggest animals were poached in near record numbers in 2012, with

surging demand for horn and ivory from Asia driving the slaughter of

rhinos and elephants. Poachers have killed hundreds of rhinos in South Africa and thousands of elephants, according to environment ministry figures.