Gray-Shanked Douc Langur

• Common Name: Gray-shanked Douc
• Taxonomy Classification Year: 1997
• Monkey Size: 56 to 59 cm (22.04 to 22.23 in)
• Skin Color(s): Light gray
• Habitat: Rainforest
• Diet: Herbivorous
• Native Countries: Vietnam

The gray-shanked douc langur^[1] (Pygathrix cinerea) is a species of douc endemic to the Vietnamese provinces of Gia Lai, Quảng Ngãi, Kon Tum, Bình Định, and Quảng Nam.

• Gray-shanked Douc langur’s body, crown, and arms are mottled light gray with a lighter underside.
• The shoulders, thighs, and part of the rump are marked with white spots. In addition, the feet and hands are black, while the lower legs are mottled dark grey.
• The bare skin of the face is yellowish brown, except for the areas around the chin and mouth, which are white.
• Long white fur covers the sides of the face. This colorful monkey has a white throat with a band of orange collar outlined by a black line connecting the black spots on their shoulders.
• Gray-shanked douc langur tails are almost the same length as the total length of the head and body.
• Genetically, Gray-shanked douc langurs are similar to Red-shanked douc langurs (Pygathrix nemaeus); however, they are considered separate species based on morphological differences.

• Male species are the dominant sex, and dominance hierarchies have been observed in captivity.
• In the past, they have been found in groups of up to 50 individuals. Still, this number has been significantly reduced to between 4 and 15 individuals.
• Gray-shanked douc langurs are also dedicated to grooming to remove parasites and create and strengthen bonds between group members. This typically happens before bedtime.
• Group members will usually spar with one another. Sparring is aggressive behavior in which participants grab, pull, and slap each other.
• Facial expressions include grimaces used to show submission, a playful face used to play with another group member, and stares that suggest aggression or curiosity.