| Among Asian colobines are Borneo's proboscis monkey, the Chinese snub-nosed monkeys and langurs, such as the douc of South-east Asia. |
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| Snub-nosed monkeys are closely related to the douc and were formerly classified in the same genus. |
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| Nearby, two douc langurs, with the porcelain faces of china dolls, white whiskers and scarlet calves, fought over food. |
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| The critically endangered Tonkin snub-nosed monkey was discovered in the 1980s, and the gray-shanked douc langur was discovered in just the last few years. |
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| It will open Saturday on 29 hectares of land with 59 species of animals, including such rare ones as the okapi, Asiatic lion and Douc langur. |
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