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Northern buffed-cheeked gibbon

Nomascus annamensis

MammalThe IUCN classifies the…

Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Mammal
Order
Primates
Family
Hylobatidae
Genus
Nomascus

Habitat

This gibbon primarily inhabits tropical and subtropical moist broadleaf forests in central Vietnam and eastern Laos. They prefer hilly and mountainous terrain with dense canopy cover, typically at elevations between 200 and 1500 meters. These areas provide the tall trees necessary for their swinging lifestyle.

Diet

They mainly consume ripe fruits, supplemented with leaves, flowers, and occasionally insects. Feeding behavior involves foraging in the upper canopy during early morning and late afternoon. Their diet shifts seasonally based on fruit availability to ensure nutritional needs are met.

Behavior

Northern buffed-cheeked gibbons live in small family groups led by a dominant pair and their offspring, exhibiting strong territorial behavior through loud duetting songs. They are diurnal and arboreal, spending most of their time brachiating through the trees and resting in the canopy. These gibbons are monogamous and communicate extensively with vocalizations to maintain social bonds and defend their territory.

Conservation Status

The IUCN classifies the Northern buffed-cheeked gibbon as Endangered, with populations declining rapidly due to habitat loss and hunting. Major threats include deforestation for agriculture and the illegal wildlife trade.