An orangutan appeared to treat a wound with medicine from a tropical plant – the latest example of how some animals attempt to soothe their own ills with remedies found in the wild, scientists reported on Thursday. Scientists observed Rakus pluck and chew up leaves of a medicinal plant used by people throughout Southeast Asia to treat pain and inflammation. The adult male orangutan then used his fingers to apply the plant juices to an injury on the right cheek. Afterward, he pressed the chewed plant to cover the open wound like a makeshift bandage, according to a new study in Scientific Report…