We know that great apes are super-smart, but, even so, wow: Wounded wild orangutan Rakus "repeatedly applied the liquid onto his cheek for seven minutes. Rakus then smeared the chewed leaves onto his wound until it was fully covered. He continued to feed on the plant for over 30 minutes... researchers saw no sign of infection and the wound closed within five days." https://www.bbc.com/news/science-environment-68942123#primates#orangutan#animals#animalcognition#anthropology#zoology
