This undated photo provided by the Facebook group HelpAndrewOberle shows graduate student Andrew Oberle observing chimps. Doctors are reporting improvement in the condition of Oberle, who was attacked by chimps he was studying in South Africa. (AP Photo/HelpAndrewOberle)

Associated Press
This undated photo provided by the Facebook group HelpAndrewOberle shows graduate student Andrew Oberle observing chimps. Doctors are reporting improvement in the condition of Oberle, who was attacked by chimps he was studying in South Africa. (AP Photo/HelpAndrewOberle)
This undated photo provided by the Facebook group HelpAndrewOberle shows graduate student Andrew Oberle observing chimps. Doctors are reporting improvement in the condition of Oberle, who was attacked by chimps he was studying in South Africa. (AP Photo/HelpAndrewOberle)
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