A U.S. graduate student who was attacked by two chimpanzees while leading a tour at a sanctuary for abused animals underwent six hours of surgery on Sunday at a hospital in South Africa.
Andrew Oberle, 26, suffered extensive soft-tissue injuries to his arms and legs. His wounds were cleaned and stitched under induced sedation, said officials at Mediclinic Nelspruit hospital in Nelspruit, a city east of Johannesburg. He remained in critical but stable condition.
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