Chimps frolic in a South African preserve.<br/> <br />While their playtime can be cute, the sanctuary was the scene of a violent attack.<br/> <br />The animals dragged American guide Andrew Oberle down Thursday as he stood close to their enclosure.<br/> <br />The University of Texas student lost several fingers.<br/> <br />(SOUNDBITE) (English) MEDI-CLINIC MANAGER, CARMEN SAVVA, SAYING:<br/> <br />"He was critical when he came in. He is doing obviously a lot better than when he came."<br/> <br />Animals at the Jane Gooddall Institute Chimpanzee Eden have been rescued from abuse in the illegal trading or entertainment industries.<br/> <br />The sanctuary director likened them to abused children, saying that sometimes they snap.<br/> <br />Lindsey Parietti, Reuters
