sentences:  On July 3, 2007, it was reported that the WWF and Conservation International had monitored at least 116 of the primates in central Vietnam, increasing its chances of survival.In the Central Highlands, Gray-shanked douc Langurs were tortured and murdered by Vietnamese troops who posted pictures of it online.On March 3, 2016, Fauna & Flora International announced that a new population of over 500 grey-shanked doucs had been discovered in Central Vietnam.