The langurs frequently appear at over 20 sites and divide themselves into small troupes (Photo: VNA) 
The lack of water and food in the mountains during the dry season has forced the animals to move to the area near coastal route and local fields for water, leaves and fruit (Photo: VNA) 
Black-shanked douc langurs are listed as endangered by the International Union for Conservation of Nature and Natural Resources (Photo: VNA) 
The management board of coastal protection forests in Thuan Nam has coordinated with relevant sides to study the black shanked douc langurs in order to put forward a preservation plan (Photo:VNA) VNA
