This species faces many threats. Destruction of forests by felling, encroachment, slash and burn cultivation of the hill tribes and monoculture are all major threats to the Sunda pig-tailed macaque’s habitat (1). The rate of forest destruction is alarming, and is not only reducing this primate’s habitat, but also fragmenting it. The macaque's taste for agricultural crops has also deemed it a pest, and it is therefore frequently shot on sight (2). Furthermore, Sunda pig-tailed macaques are very popular for use in laboratories, being almost ideally suited for both psychological studies and HIV (AIDS virus) research (2).