Males have a large throat patch and large cheek pads. This species inhabits Borneo, Indonesia. They live in swampy areas of the forest but high up in the canopy of Borneo's tropical rain forests. Diet Fruit is the most important component of their diet, but they also feed on insects, small vertebrates, leaves and bark. Social organisation and behaviour Adult male and female orang-utans are solitary.
Females travel with their young until adolescence.
They are diurnal and arboreal. In captivity, female orang-utans have given birth as young as seven years old. Gestation is 244 days. Young orang-utans are still being captured for the pet trade. The estimated population of Bornean orangutans is only 12,000-15,000.