An orangutan named Rakus was
observed repeatedly chewing on the leaves of a particular liana plant over
several days. The climbing vine is not a typical food for orangutans, but it is
known to humans as a pain reliever.
On at least one occasion, Rakus made a paste from
the chewed leaves and applied it to his face. It’s the first time an animal has
been seen applying medicine to a skin wound.
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