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Orangutan

life science Maturity 9-11 Next article →

Orangutans are amazing great apes that live in tropical rainforests.

Bornean, Sumatran & Tapanuli orangs (horizontal)
Bornean, Sumatran & Tapanuli orangs (horizontal)

Today, they only live on the islands of Borneo and Sumatra. They belong to a group called the genus Pongo. Scientists used to think they were just one single species. However, they are now divided into three different types. These are the Bornean orangutan, the Sumatran orangutan, and the Tapanuli orangutan.

Pongo tapanuliensis male female
Pongo tapanuliensis male female

The Tapanuli species was only definitely identified in 2017. They are the only living members of their specific family group. This group split away from humans and chimpanzees millions of years ago.

These apes spend most of their lives high up in trees.

Orang-Utan Tournai
Orang-Utan Tournai

They are very good at living in the forest canopy. They have very long arms and much shorter legs. Their bodies are covered in long, reddish-brown hair. This hair can look bright orange or even dark chocolate. Adult males are much larger than the females. Big males grow large cheek pads called flanges. These pads are made of fatty tissue. They also have throat pouches to help them make loud calls. These calls help them find mates or scare away rivals.

Orangutans are very smart and clever animals. They are among the most intelligent primates in the world. They know how to use tools to solve problems. Every night, they build new sleeping nests from branches and leaves.

Bornean Orangutan in nest
Bornean Orangutan in nest

They also have very good learning abilities. Some scientists think different groups might even have their own cultures. Their diet is mostly made of fruit. They will also eat things like honey, insects, and bird eggs. They can live for over 30 years in the wild.

People have known about orangutans for a very long time. The name comes from Malay words meaning "person" and "forest."

Birute Galdikas
Birute Galdikas

One of the first written reports was by a Dutch doctor in 1631. Later, a scientist named Carl Linnaeus described them in 1758. A famous researcher named Biruté Galdikas led important studies on them. Since the early 19th century, orangutans have lived in care facilities around the world. They have also appeared in many books and pieces of art.

It is very important to help these apes survive. All three species are considered critically endangered. This means they are in great danger of disappearing forever.

Riau palm oil 2007
Riau palm oil 2007

Human activities are causing their numbers to drop. People cut down forests for logging or to grow palm oil. This destroys the homes they need to live. Poaching and the illegal pet trade are also big problems. Many groups are working hard to protect them in the wild.

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🖼️ Images & Media (16)
File:Bornean, Sumatran & Tapanuli orangs (horizontal).jpg
Bornean, Sumatran & Tapanuli orangs...
File:Sivapithecus sivalensis.JPG
Sivapithecus sivalensis.JPG
File:Pongo tapanuliensis male female.jpg
Pongo tapanuliensis male female.jpg
File:Orang-Utan Tournai.jpg
Orang-Utan Tournai.jpg
Video wild orangutan Borneo.webm
File:Orangutan -Zoologischer Garten Berlin-8a.jpg
Orangutan -Zoologischer Garten Berlin-8a.jpg
File:Leuser-orangs 09N8683.jpg
Leuser-orangs 09N8683.jpg
File:Bukit Lawang, orangutans (6785217748).jpg
Bukit Lawang, orangutans (6785217748).jpg
File:Bornean Orangutan in nest.jpg
Bornean Orangutan in nest.jpg
Orangutanspeech.webm
File:Orangutan using precision grip.jpg
Orangutan using precision grip.jpg
File:Birute Galdikas.jpg
Birute Galdikas.jpg

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