Enclosure status
Open
Population in the wild
2000
IUCN status
Endangered
Scientific name
Trachypithecus francoisi
Order
Primates
Type
Mammals
Family
Cercopithecidae
Region
China and Viet Nam
Habitat
Limestone forests

François’s Langur facts

  • Baby langurs are born bright orange, which fades as they get older. It's not yet fully understood why they have are born with this colour, but it potentially helps adults keep an eye on their infants and help encourage care giving and attention. 
  • François’s langurs have double chambered stomach similar to a cow, which helps them digest tough leaf fibers. 
  • These langurs live in a matriarchal society with females leading the group.
François’s Langur potrait shot

François’s Langur habitat

François’s langurs typically live along limestone cliffs up to 600 metres high, and retreat into caves for safety when they rest and sleep. 

Baby Endangered Francois Langur Citrus at Whipsnade Zoo
© Mark-Johnson
Endangered Francois Langur Citrus and Mum Lee-Lee at Whipsnade Zoo
© Mark Johnson

Francois' Langur threats

François’s langurs were once widespread across northern Viet Nam and southern China, but hunting and habitat loss has significantly reduced the population. In Viet Nam there are now just around 200 individuals left, while in China populations have dropped from over 7000 to now 1600.

Francois Langur baby
© Mark Johnson

Black ape wine 

Hunting for "black ape wine" is their biggest threat in the wild, which is specifically created from Francois' Langurs. The illegal wildlife trade for "black ape wine" even leads to langurs being smuggled into Viet Nam, as it's wrongly believed to have medicinal properties, supposedly helping with fatigue. 

Habitat loss caused by agricultural development for crops like rice paddies and maize are also a problem in China, and the creation of new livestock farms. This habitat loss makes them more vulnerable to hunting and fragments populations, increasing the risk of inbreeding.

Animals at Monkey Forest

Macaca nigra

Sulawesi crested macaque

Sulawesi crested macaques might not look like a monkey, but they actually have a vestigial tail that's just 2cm long.

Bubalus depressicornis

Anoa

A dwarf buffalo, anoas are the smallest of all cattle species and our scientists have been working to protect them.

Babyrousa celebensis

Babirusa

The oldest living members of the pig family, Babirusa's tusks are actually canine teeth which can reach 40cm long and grow through their skin.