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The orangutan

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on 21 May 2010

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Transcript of The orangutan

The orangutan
The orangutan’s ancient origin was fairly agreed. One hypothesis says it originated from Lufengpithecus, while another maintains that they originated from Sivapithecus. Orangutans can be also known as a great ape. The orangutan is the only great ape that has a fossil record linking early forms to later forms (there has never been an African fossil found that is related to chimpanzees or gorillas). Orangutans are classified as tree dwelling animals and are the largest tree dwelling animals. Rumours show that the orangutan can possibly be related to early humans. There are only two breeds of orangutans, Sumatran and Bornean. Orang-utan means “person of the forest”.
It can be also known as the Pongo pygmaeus.

An orangutan can be weighing up to 90 kilograms if male! If it is female it usually weighs 50 kilograms. They are usually four feet long and can reach up to six feet.
Orangutans usually wander around dense rainforests. They live on the islands of Sumatra and Borneo in Southeast Asia.

Life Cycle
1. The orangutan is born
2. At the age of eight, they become independent and do not need to rely on their mothers to look for food.
3. They reach full growth at 10-12 years.
4. There is no particular mating season for orangutans but a female only gives birth to a young every 7-8 years because they spend each eight years looking after their young.
5. They live for about 35 years in the wild although there aren’t many left due to human actions.
The Orangutan mainly eats fruit, nuts, leaves, bark, and insects. Because they are super intelligent, they can memorize the geography of their surroundings and they can find ripe fruit from really far away places. When it is thirsty, it will look into a hollow tree where water is left from storms.
Impact on rainforests
The impact on rainforests is they are getting extinct. It shows that humans’ impact on the rainforests can affect every animal big and small. As rainforests are cut down for palm oil, their homes are being destroyed.

Interesting facts
1. Because the orangutan spends most of its life in trees, its arms are longer and stronger than any other ape's.
2. Centuries ago, orangutans were much larger than they are today. Fossil remains show that a species of giant orangutan existed in China 500,000 years ago.
3. Sumatran orangutans have lighter hair, longer beards and narrower cheekpads than Borean orangutans.
4. They will poke twigs into holes to catch insects, chew up leaves and use them as sponges and use branches and sticks to test the depth of water before entering it.
5. Orangutans are diurnal which means they are active during the day.
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