Orangutan's use of medicinal plant to treat wound intrigues scientists

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Researchers described how Rakus appeared to treat the wound using a plant known for its pain-relieving properties.

INDONESIA - In June 2022, a male Sumatran orangutan named Rakus sustained a facial wound below the right eye, apparently during a fight with another male orangutan at the Suaq Balimbing research site, a protected rainforest area in Indonesia. What Rakus did three days later really caught the attention of scientists.

Rakus also ate the plant, an evergreen vine commonly called Akar Kuning - scientific name Fibraurea tinctoria, added Laumer, lead author of the study published in the journal Scientific Reports. This plant is rarely eaten by orangutans in this peat swamp forest area, home to about 150 critically endangered Sumatran orangutans.

“It is possible that wound treatment with Fibraurea tinctoria emerges through accidental individual innovation. Individuals may accidentally touch their wounds while feeding on Fibraurea tinctoria and thus unintentionally apply the plant’s juice to their wounds,” Laumer said.

 

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