At the Cincinnati Zoo.

The François langur (Trachypithecus francoisi) belongs to a group of primates called leaf monkeys, as it eats large amounts of leaves. It even has a special stomach to help it digest plant fibers. A troop of up to a dozen members spends most of its time foraging in the treetops.


  • Pronunciation: frahn-SWAH lang-GOOR
  • Where to see them: Jungle Trails
  • Length: 1.5 to 2.2 ft
  • Weight: 12.5 to 20.9 lbs
  • Lifespan: Up to 28 yrs in wild
  • Habitat: Tropical forest and rocky outcrops
  • Diet: Leaves, fruit, and flowers
  • Risk Status: Species at Risk (IUCN—Endangered)
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