Primates Research Paper

In Penang Island, there are two diurnal primate species, the long-tailed macaque (Macaca fascicularis) and the dusky leaf monkey (Trachypethicus obscurus). Both of these species are Old World Monkeys. The long-tailed macaque (Macaca fascicularis), which is also known as crab-eating macaque is widely distributed in tropical mainland and insular Southeast Asia (Fooden 1995), belongs to Cercopithecinae family. They can be found in a wide variety of habitats such as mangrove forests, primary and secondary forests, freshwater swamps, peat swamps. They can even be found in agriculture areas and villages that are near the forests, national parks, recreational parks, tourist attractions. Due to their ability to cope well in disturbed habitat areas

It is a species of primate in the Cercopithecidae family. This species can be found in Malaysia (throughout the Malay Peninsula along with a few small adjacent islands), southern Myanmar (including the Mergui Archipelago), and south western Thailand (including adjacent islands). It is found north to 15°10'N in Myanmar and Thailand (Groves 2001). Like M. fascicularis, this species can also be found in old-growth secondary and disturbed forests, urban areas, and parks even though it prefers dense primary forests with tall trees. This species can be easily identified with its white circles around each eye, pale pinkish skin around the mouth, which is devoid of fur, and lighter fur on its crown, underpart, hind legs and tail. Its body fur can appear dark grey, greyish brown or jet black depending on the amount of ambient light. Unlike the adults, young infants have pale yellow to orange fur. There are several subspecies of this monkey: Trachypithecus obscurus obscurus, Trachypithecus obscurus flavicauda, Trachypithecus obscurus halonifer, Trachypithecus obscurus carbo, Trachypithecus obscurus styx, Trachypithecus obscurus seimundi, Trachypithecus obscurus