Hose’s langur is fully protected in Sarawak, prohibiting individuals from keeping them as pets, or hunting, capturing, killing, selling, importing or exporting them, with stiff penalties of a fine and two years imprisonment if caught (7). The species appears in a few protected areas, such as Kutai National Park and Kayan Mentarang National Park, but the protection offered is frequently inadequate and laws remain unenforced. Indeed, despite being found in national parks, only an estimated 5% of the Kutai National Park forest has escaped logging, illegal settling, industrial development and fire (6), and active protection of Kayan Mentarang National Park has clearly been lacking, having suffered heavily from hunting pressure (8). In such cases, National Park ‘protection’ alone does not guarantee preservation, and more active protection of wildlife against hunting and habitat destruction is desperately required to prevent the extinction of this species. Sadly, it may already be too late for certain subspecies.