Wall Street Journal: 'Chimpanzees with open wounds snag an insect from under leaves or branches and whip the bug into their mouths. The chimps, rather than swallowing, then apply the stunned insect to their injury, delicately moving it around the wound’s surface with their lips or fingertips.
'Researchers with the Ozouga Chimpanzee Project in Gabon who track and film these animals began observing this pattern of behavior among a group of roughly 45 chimpanzees living in the rainforests of the country’s Loango National Park three years ago.'