page_title: Silvery lutung
section_title: Reproduction
hierarchical_section_title: Silvery lutung / Reproduction
caption_attribution_description: English: en:Trachypithecus cristatus Nederlands: Mutslangoer
context_page_description: The silvery lutung, also known as the silvered leaf monkey or the silvery langur, is an Old World monkey. It is arboreal, living in coastal, mangrove, and riverine forests in Peninsular Malaysia, Sumatra, and Borneo.
  It is the type of its species group.
context_section_description: Silvery lutungs breed year round, with no clear breeding season, although each female typically gives birth no more than once every 18 to 24 months. The female attracts the male by making side-to-side motions with her head, and copulation may occur several times during a bout. Unusually, females have been reported to reach menopause in the wild, and may survive up to nine years after last giving birth.
  The female gives birth to a single young after a gestation period of 181 to 200 days. The young weigh about 400 grams (14 oz), measure about 20 centimetres (7.9 in) and are well developed, with a strong grip for holding onto the mother. Silvery lutungs are born with orange fur, and with white hairless skin on the face, hands, and feet. The skin rapidly changes to the dark adult colour, but the fur does not reach the adult pattern for three to five months after birth. The young are cared for by females communally, and are not weaned for 18 months, even though the biological mother stops lactating after just 12 months. The young are sexually mature almost as soon as they finish weaning, and, on average, females first give birth at 35 months of age.
  Silvery lutungs have lived up to 31 years in captivity.
caption: Infant silvery lutung, showing orange fur and pale skin
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