Borneo Orangutan is a great ape with long arms and reddish-black hair. Sometimes their color is brown where is in the Asia region. The term is taken from Indonesia, and Orangutan means people in the forest. They have fat bodies, thick-necked, long-sleeved, and muscular, short legs and bowed, but they do not have a tail. The male Orangutan measures 1 to 1.4-meter size 2/3 times the size of a gorilla.

The body is brownish red-brown hair, a large head with a high position of the mouth, and the male has a fleshy temple. They have the same senses as humans, smell, hearing, sight, taste, and touch. Their palms have four long fingers and one thumb and have a soles fingers composition similar to humans. Vertebrate animals, including orangutans, it means that they have a backbone and also include mammals and primates. Currently, Orangutans are an endangered animal, because humans are constantly damaging their habitat and often sell their babies illegally as personal pets. The estimated population in the whole world only amounted to 10,000 heads. Currently, it developed a wildlife reserve to preserve its population in various countries.

The Orangutans are in tropical rainforests of Southeast Asia such as Borneo and Sumatra islands in the region of the state of Indonesia and Malaysia. They used to live in dense trees and make nests of leaves stay. The Orangutan can live on some forest types, lowland hills, freshwater swamp forests, peat bogs, river basins, and dry soil above the mangrove swamp. Borneo Island was found at an altitude of 500 meters above sea level, while relatives in Sumatra report reaching forested mountains about 1.000 meters above sea level high.