An orangutan of the Tapanuli region in northern Sumatra, Indonesia, where its forest habitat is fragmented; fruit is a major food.
The 2017 species paper describes curlier hair than in Sumatran orangutans and cinnamon-colored fur. It also notes sex- and status-related traits, including cheek pads in dominant males and beards in females.
A study of four individuals at Camp Mayang reported a fruit-centered plant diet and frequent picking of food from branches.
An extinction-risk assessment has not been added yet.