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Associated Press
FILE - In this Feb. 1, 2011 file photo, chimpanzees sit in an enclosure at the Chimp Eden rehabilitation center, near Nelspruit, South Africa. A paramedic official says chimpanzees at a sanctuary for the animals in eastern South Africa bit and dragged a man at the reserve, badly injuring him. More than 22,000 great apes are estimated to have been traded illegally over a seven-year period ending in 2011. That's about 3,000 a year; more than half are chimpanzees, the U.N. report said. (AP Photo/Erin Conway-Smith, File)

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