Chimpanzee yawning showing closeup of mouth and teeth aggressive (Pan troglodytes), Chimfunshi Wildlife Orphanage Zambia Africa, Chimfunshi Wildlife Orphanage is recognised as the worlds largest dedicated sanctuary for orphaned chimps, As chimpanzees are not indigenous to Zambia it is not possible to freerelease them locally, therefore 2,000 acres of forest land has been designated to the chimps