Orangutan
Pongo pygmaeus
Quick answer
Orangutans are large, intelligent great apes that live in the rainforests of Borneo and Sumatra, the only great apes found in Asia. They spend most of their lives in the trees, swinging through the canopy with long, powerful arms that can span over 2 m (7 ft), and they feed mainly on fruit. Known for their reddish hair and tool use, orangutans are critically endangered, with populations falling sharply due to deforestation. In the wild they can live 35 to 45 years.
Orangutan facts at a glance
| Scientific name | Pongo pygmaeus |
|---|---|
| Diet | Omnivore (mostly fruit) |
| Habitat | Tropical rainforest canopy |
| Lifespan | 35–45 years in the wild |
| Weight | 30–90 kg (66–200 lb) |
| Arm span | Up to 2.2 m (7 ft) |
| Conservation status | Critically Endangered (IUCN) |
| Kingdom | Animalia |
|---|---|
| Phylum | Chordata |
| Class | Mammalia |
| Order | Primates |
| Family | Hominidae |
| Genus | Pongo |
Behavior and intelligence
Orangutans are among the most intelligent animals, capable of using and even making simple tools, such as sticks to extract insects or leaves used as umbrellas and gloves. They are largely solitary compared with other great apes, with adult males living alone and females accompanied only by their offspring. They build a fresh nest of branches and leaves high in the trees to sleep each night. Their name comes from Malay words meaning "person of the forest."
Diet and feeding
Orangutans are omnivores whose diet is dominated by fruit, especially energy-rich figs and the spiky durian. They also eat leaves, bark, flowers, insects, and occasionally eggs. Because fruiting is patchy in the rainforest, orangutans range widely and remember the locations and seasons of fruit trees across large areas. By spreading seeds in their droppings, they help regenerate the forest.
Habitat and range
Orangutans live only on the islands of Borneo and Sumatra in Southeast Asia, where they inhabit tropical lowland and peat-swamp rainforests. They are the most arboreal of the great apes, spending almost all their time in the canopy and rarely coming to the ground. There are three species: the Bornean, Sumatran, and the recently described Tapanuli orangutan, all of which are critically endangered. Their survival is tightly linked to the health of intact forest.
Conservation
All orangutan species are Critically Endangered, with numbers falling rapidly due to logging, conversion of forest to palm oil plantations, fires, and the illegal pet trade. Females reproduce very slowly, giving birth only once every six to eight years, so populations recover poorly from losses. Conservation efforts include protecting and restoring forest, rehabilitating rescued orphans, and promoting sustainable palm oil. Without urgent action, wild orangutans face a real risk of extinction.
Frequently asked questions about the Orangutan
Where do orangutans live?
Orangutans live only in the rainforests of Borneo and Sumatra in Southeast Asia. They are the only great apes found in Asia and spend almost all their time in the trees.
What do orangutans eat?
Orangutans eat mainly fruit, especially figs and durian, along with leaves, bark, flowers, and insects. They roam widely to find fruiting trees in the rainforest.
Are orangutans endangered?
Yes. All three orangutan species are Critically Endangered, mainly because of deforestation for palm oil and timber, forest fires, and the illegal pet trade.
How intelligent are orangutans?
Orangutans are highly intelligent and known to use and make tools, solve problems, and learn complex skills. They build a new sleeping nest in the trees every night.
How long do orangutans live?
Wild orangutans typically live 35 to 45 years, and some reach over 50 years in captivity. They have one of the slowest reproductive rates of any mammal.
Are orangutans dangerous to humans?
Orangutans are generally shy and avoid people, but they are extremely strong wild animals. They are best observed from a distance and should never be approached or kept as pets.
