Crab-eating macaque

It has one young per litter after a gestation period of 165 days and reaches sexual maturity at 3.9 years. The IUCN Red List classifies it as Endangered, a threatened category, and reported lifespan values go up to 39 years.

Weight

3.59 kg – 5.34 kgsrc for Weight

Length

Not recorded

Lifespan

37.6 yearssrc for Lifespan

Diet

Omnivoresrc for Diet

Longest recorded lifespan

39 years

Main food

Not recorded

Habitat

forestsrc for Habitat

Gestation

165 dayssrc for Gestation

Young per litter or clutch

1src for Young per litter or clutch

Age at maturity

3.5 years – 4.23 yearssrc for Age at maturity

Litters or clutches a year

0.93src for Litters or clutches a year

Active

By day (diurnal)src for Active

Lifestyle

Scansorialsrc for Lifestyle

Conservation status

Endangered (IUCN)src for Conservation status

Countries on record

Not recorded

Not recorded

The crab-eating macaque is listed as Endangered on the IUCN Red List: it faces a very high risk of extinction in the wild.

1. LCLeast Concern
2. NTNear Threatened
3. VUVulnerable
4. ENEndangered
5. CRCritically Endangered
6. EWExtinct in the Wild
7. EXExtinct

Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Endangered species. What the categories mean.

1. kingdomAnimalia
2. phylumChordata
3. classMammalia
4. orderPrimates
5. familyCercopithecidae
6. genusMacaca
7. SpeciesMacaca fascicularis (Raffles, 1821)

Synonyms Macaca irus, Simia fascicularis

Catalogue of LifeWikipediaiNaturalistWikidataIUCN Red List

LC, Least Concern

Rhesus macaque

Macaca mulatta

Cercopithecidae

EN, Endangered

Barbary macaque

Macaca sylvanus

Cercopithecidae

LC, Least Concern

Japanese macaque

Macaca fuscata

Cercopithecidae

EN, Endangered

Lion-tailed macaque

Macaca silenus

Cercopithecidae

CR, Critically Endangered

Celebes crested macaque

Macaca nigra

Cercopithecidae

VU, Vulnerable

Stump-tailed macaque

Macaca arctoides

Cercopithecidae

CompareCrab-eating macaque vs Rhesus macaqueCrab-eating macaque vs Barbary macaqueCrab-eating macaque vs Japanese macaqueCrab-eating macaque vs Lion-tailed macaque

• An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
  Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1
• Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
  Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
• Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
  Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence).
• EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
  Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1
• Wikidata · CC0 1.0 · 2026-11-11
  Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service).
• Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
  Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).

@misc{crab_eating_macaque_2026,
  title = {Crab-eating macaque (Macaca fascicularis)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/crab-eating-macaque},
  note = {Data as of 2026-11-11}
}