Of only two islands in the world: Sumatra (in Indonesia) and Borneo (in Malaysia and Indonesia).
They are the largest arboreal (tree dwelling) animal in the world, reaching heights of four to five feet and weights of 125 to 235 pounds or more.
Orangutans are reddish-brown in color and some males grow white or yellow beards. Also characteristic are their bare faces with round eyes and small ears; their long, shaggy hair; long arms; and curled fingers and feet.
Males are much larger than females and develop large pads on their cheeks called “flanges” and large throat pouches at the age 15 to 20.
They spend most of their time in trees and subsist mainly on fruit, leaves, flowers, buds, bark and insects.