Look at Borneo, where you instantly think of the orang-utans.

看到婆罗洲，你立刻就会想到猩猩。

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Orang Utans are highly intelligent apes and can be found wild on the islands of Borneo and Sumatra.

红毛猩猩是高度智能化的类人猿，可以发现在这些岛屿上的野生婆罗洲和苏门答腊岛。

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WHEN it comes to researching intelligence in primates, chimpanzees and orang-utans get all the attention.

当人们研究灵长类动物的智力水平的时候，所有的注意力都集中在黑猩猩和猩猩上。

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Facial expressions, such as the open, gaping mouth resembling laughter, were picked up and copied by orang-utans.

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Scientists found that orang-utans had a sense of empathy and mimicry which forms an essential part of laughter.

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In the mouse, around 20% turned out to be pseudogenes, whereas in chimpanzees, gorillas and orang-utans the level was closer to 30%.

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