According to the International Union for Conservation of Nature (IUCN), the total population of orangutans in the wild is estimated to be between 104,700 and 115,000 individuals. This population is divided into three species: the Bornean orangutan (Pongo pygmaeus), the Sumatran orangutan (Pongo abelii), and the Tapanuli orangutan (Pongo tapanuliensis). The Bornean orangutan is the most numerous of the three species, with an estimated population of 54,000 to 69,000 individuals. The Sumatran orangutan is the second most numerous species, with an estimated population of 14,600 to 22,000 individuals. The Tapanuli orangutan is the least numerous of the three species, with an estimated population of only 800 to 1,000 individuals.
Orangutans are found in the rainforests of Borneo and Sumatra, two islands in Southeast Asia. They are arboreal animals, meaning that they spend most of their time in trees. Orangutans are known for their intelligence and their long, red hair. They are also one of the most endangered species of animals in the world. The main threats to orangutans are habitat loss, hunting, and the illegal pet trade.