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Nicobar long-tailed macaque

subspecies of mammal

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionOct 3, 2025
Entity authorityQ5460541 ↗
Source-derived summary

The Nicobar long-tailed macaque (Macaca fascicularis umbrosa), popularly known as the Nicobar monkey, is a subspecies of the crab-eating macaque (M. fascicularis), endemic to the Nicobar Islands in the Bay of Bengal. This primate is found on three of the Nicobar Islands—Great Nicobar, Little Nicobar and Katchal—in biome regions consisting of tropical and subtropical moist broadleaf forests.

Description

The Nicobar long-tailed macaque has brownish to grey fur, with lighter colouration on its undersides. Its face is pinkish-brown, with white colour spots on its eyelids. Infants are born with a dark natal coating, which lightens as they reach maturity, which occurs at about one year of age. The gestational period is five-and-a-half months. Adult males are roughly one-and-a-half times larger than the females, and can measure up to 64 centimetres (2 ft) in height, and weigh up to 8 kilograms (18 lb). The males also have larger canine teeth than the females. The tail is longer than the head-to-rump height. Like other macaques it possesses cheek pouches in which it can store food temporarily, and transport it away from the foraging site to be eaten in shelter and safety.

Editorial summary

Begin with the source’s own compact description: “Nicobar long-tailed macaque” is subspecies of mammal. The dossier treats that line as a proposition to test through Nicobar, long-tailed and macaque, not as a finished interpretation.

Editorial reviewA sound reference starting point where classification, measurement and the date of the underlying evidence remain visible. The current 188-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. For this dossier, Nicobar, long-tailed and macaque is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “subspecies of mammal” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Oct 3, 2025. The linked authority identifier is Q5460541. None of the 0 selected statements returned an explicit reference.

Critical limits

Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

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Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “Nicobar long-tailed macaque”, its source revision and the description used here.
  2. Expand the search: follow Nicobar long-tailed macaque primary sources, Nicobar long-tailed macaque archive and Nicobar research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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  2. Has classification or technical consensus changed since the cited source?
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Source & attribution

This entry incorporates text from “Nicobar long-tailed macaque” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.