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Francois' Langur Fact Sheet

  • Latin Name

    Trachypithecus francoisi francoisi
  • Class

    Mammals
  • Order

    Primates
  • Range

    Francois' langurs can be found in the southern Guangxi province of China, northern Vietnam and west-central Laos.

  • Habitat

    This primate species occupies dense forests, where they climb through the canopy in search of leaves on which to feed.

  • Niche

    Francois langurs feed primarily on leaves. Because leaves are low in nutrients, the monkeys have a multi-chambered stomach that helps them digest their diet. Special bacteria in the stomach also aid the process.

  • Life History

    The species lives in groups consisting of 3–10 individuals. The females show allomothering behaviors, with non-mothers cooperating in their care and feeding of young. Males define their territory with hoarse vocalizations.

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