Orangutan in Indonesian rainforest treats own facial wound, say researchers: ‘Appeared intentional’

An orangutan in a protected Indonesian rainforest site who sustained a facial wound treated the injury himself, according to a study published in the journal Scientific Reports earlier this month.

The male primate chewed the leaves of a plant known for its anti-inflammatory, antibacterial and pain-relieving properties — then applied a paste he made from the chewed leaves to his facial wound, according to the study.

The researchers — from the Max Planck Institute of Animal Behavior...