Grey-shanked douc langurs at the Hon Do mountain in Nui Thanh's Quang Nam (VNA) – Efforts are being made toward a goal of expanding the habitat of the grey-shanked douc langur in central Quang Nam province’s Nui Thanh district to 150ha by 2030. The goal is set in a local project to preserve the endangered grey-shanked douc langurs. A study conducted in October last year by GreenViet, a non-profit organization, showed that natural forests on 30ha in Nui Thanh’s mountains are home to six families of grey-shanked douc langurs with a total 68 individuals. This is the sole visible population in the world.