Douc Langur
The doucs or douc langurs make up the genus ''Pygathrix''. They are colobine Old World monkeys, native to Southeast Asia, which consists of these 3 species: red-shanked douc, black-shanked douc, and gray-shanked douc. Description The doucs are colobine Old World monkeys, which make up the genus ''Pygathrix''. They are native to Southeast Asia. Classification The doucs make up the genus ''Pygathrix'', which consists of these 3 species: * Red-shanked douc, ''Pygathrix nemaeus'' * Black-shanked douc, ''Pygathrix nigripes'' * Gray-shanked douc, ''Pygathrix cinerea'' Even though they are known as "douc langurs", they are in fact more closely related to the proboscis monkey and snub-nosed monkeys than to any of the langurs. They are part of the subfamily Colobinae The Colobinae or leaf-eating monkeys are a subfamily of the Old World monkey family that includes 61 species in 11 genera, including the black-and-white colobus, the large-nosed proboscis monkey, and the gra ...
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Red-shanked Douc
The red-shanked douc (''Pygathrix nemaeus'') is an arboreal and diurnal Old World monkey belonging to the Colobinae subfamily. They are endemic to Laos, Vietnam and Cambodia. They are known for their bright colors and express exhibit sexual dimorphism through their body size. The species have been declared critically endangered by the International Union for Conservation of Nature, with the main threats being from hunting, habitat loss and pet trade. They are one of three species in the genus ''Pygathrix'', the other two being the black-shanked ('' P. nigripes'') and gray-shanked ('' P. cinerea'') doucs. Red-shanked doucs live in fission-fusion, multilevel societies that have a mean of 18 individuals per band. They are folivorous and consume mainly ''Acacia pruinescens, Ficus racemosa, Millettia nigrescens, Zanthoxylum avicennae'' and ''Castanopsis ceratacantha''. Their four-chambered stomachs that allow for bacterial fermentation help them with their high-fiber diet. Geograph ...
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