page_title: Dusky leaf monkey
section_title: Habitation and activity patterns
hierarchical_section_title: Dusky leaf monkey / Habitation and activity patterns
caption_attribution_description: English: Lutung at Taman Rakan, near Kajang. Lutung still make this urban area as their habitat.
context_page_description: The dusky leaf monkey, spectacled langur, or spectacled leaf monkey is a species of primate in the family Cercopithecidae. It is found in Malaysia, Myanmar and Thailand
context_section_description: The dusky leaf monkey is a primate species that is found in the Peninsular region of Malaysia, as well as adjacent areas of Myanmar and Thailand. Scan and sampling of 13 individuals (2 adult males, 8 adult females, 3 juveniles) was done by researchers from University Sains Malaysia. The researchers found that most of the dusky leaf monkeys spent their times positioning. The time that the dusky leaf monkey spent posting was estimated to be 40%. Researchers also found that the individuals spent approximately 33% of their time feeding on the leaves of the plants. In this research, researchers found these dusky leaf monkeys feeding on 10 different forest plant species on a regular basis. Dusky leaf monkeys tend to consume leaves which grow at higher elevations such as in the canopy level of a forest. 
  There are several subspecies of this lutung:
  Trachypithecus obscurus obscurus
  Trachypithecus obscurus flavicauda
  Trachypithecus obscurus halonifer
  Trachypithecus obscurus carbo
  Trachypithecus obscurus styx
  Trachypithecus obscurus seimundi
  Trachypithecus obscurus sanctorum
  Dusky leaf monkeys have occasionally been observed in Singapore.  It is not clear whether these monkeys are escaped pets or whether they swam to Singapore on their own volition from Johor, Malaysia.
caption: Lutung in urban area in Taman Rakan, Kajang.
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