There are four taxa of great apes in the world, those are, gorillas, chimpanzees, banobos and orangutans. Orangutans are the only great apes living in Asia, while the other three are living in Africa. There are two kinds of orangutans, Sumatran orangutans (Pongo abelii), which dispersion is limited in northern Sumatera and Borneo orangutan (Pongo pygmaeus), which are still found in several areas that are pockets of habitat in Sabah and Sarawak, especially in peat swamp forest area and also lowland Dipterocarpaceae forest in the southwest of Kalimantan between Kapuas and Barito rivers (West and Central Kalimantan), and also the east of Mahakam river to the north (East Kalimantan Province and Sabah).
