Researchers have revealed that "the orangutan, or wild gorilla, was observed rubbing a mash of medicinal plant on its wound, which could indicate the origins of wound treatment in humans." In the journal Scientific Reports, researchers stated that they documented a male orangutan treating an open wound on its face using the sap and chewed leaves of a plant known for its anti-inflammatory and pain-relieving properties, a process that took 30 minutes. According to Axios, researchers clarified that within five days, the wound closed and healed within a month. They confirmed that "Fibraria tinctoria is the plant used by the orangutan to treat the wound, a medicinal plant with anti-inflammatory and antibacterial properties, among other attributes utilized by people in Sumatra in the Indian Ocean and other places for wound healing."