File:Crab-eating_macaque,_Singapore_2025.jpg · Wikimedia Commons · See Wikimedia Commons
crab-eating macaque
Sign in to saveAlso known as Macaca fascicularis, Cynomolgus irus, Macaca irus, long-tailed macaque, cynomolgus monkey
species of mammal
OverviewAI-generated
The crab-eating macaque, scientifically named *Macaca fascicularis*, is a species within the genus *Macaca*. It is also referred to by the common names Nicobar Crab-eating Macaque, Nicobar Cynomolgus Monkey, and Nicobar Long-tailed Macaque. This diurnal primate has a recorded longest observed lifespan of 39 years.
The species is found in Brunei, Cambodia, India, and Malaysia. According to the IUCN Red List, its conservation status is Endangered as of 2025.
Synthesized by Vinony from 18 facts across 4 sources: Wikidata, IUCN Red List, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Species
EndangeredDer Javaneraffe, Langschwanzmakak oder Krabbenesser (Macaca fascicularis) ist eine Primatenart aus der Gattung der Makaken innerhalb der Familie der Meerkatzenverwandten. Inhaltsverzeichnis 1 Merkmale 2 Verbreitung 3 Unterarten und Systematik 4 Lebensraum 5 Lebensweise 6 Nahrung 7 Fortpflanzung 8 Javaneraffen und Menschen 8.1 Einsatz bei Tierversuchen 8.2 Erste geklonte Affenart 9 Literatur 10 Weblinks 11 Einzelnachweise Merkmale Charakteristisches Merkmal der Javaneraffen ist der lange Schwanz, der mit einer Länge von 36 bis 71,5 Zentimetern bei den Männchen bzw. 31,5 bis 63 Zentimetern bei den Weibchen meist länger als das übrige Tier ist. Die Kopfrumpflänge der Männchen beträgt 37 bis 63 Zentimeter, die der Weibchen liegt bei 31,5 bis 54,5 Zentimeter. Männchen sind mit 3,4 bis 12 Kilogramm deutlich schwerer als Weibchen, die 2,5 bis 5,4 Kilogramm erreichen.[1] Daneben haben Männchen auch deutlich größere Eckzähne. Das Fell ist grau, graubraun oder rötlichbraun und an der Unterseite heller, das nackte Gesicht ist bräunlich oder grau gefärbt. An der Oberseite des Kopfes kann sich ein dunkel gefärbter Haarschopf befinden, beide Geschlechter können Backenbärte oder weiße Zeichnung a
via IUCN
Research
21,131 papers- Integrated analysis of the complete sequence of a macaque genome.Nature · 2025Zhang S, Xu N, Fu L et al.DOI: 10.1038/s41586-025-08596-w
- Acute Late-Stage Myocarditis in the Crab-Eating Macaque Model of Hemorrhagic Smallpox.Viruses · 2021Johnson RF, Keith LA, Cooper TK et al.DOI: 10.3390/v13081571
- Use of the Illumina EPIC methylation array for epigenomic research in the crab-eating macaque (Macaca fascicularis).Neuropsychopharmacology reports · 2020Nakachi Y, Ishii K, Bundo M et al.DOI: 10.1002/npr2.12145
- Sudden death caused by Aeromonas hydrophila in a Crab-eating Macaque (Macaca fascicularis) associated with captivity stress.The Journal of veterinary medical science · 2023Seo MG, Kim KTDOI: 10.1292/jvms.22-0473
- Paternity testing for crab-eating macaques and rhesus macaques using microsatellite markers.Animal models and experimental medicine · 2025Yuan Y, Sun T, Zhang L et al.DOI: 10.1002/ame2.70072
- Brief report: Crocodile predation on a crab-eating macaque in Borneo.American journal of primatology · 1984Galdikas BMF, Yeager CPDOI: 10.1002/ajp.1350060106
- Identification and characterization of microRNAs in the crab-eating macaque (Macaca fascicularis) using transcriptome analysis.Gene · 2014Yang H, Zhang R, Jing Y et al.DOI: 10.1016/j.gene.2013.12.006
- Phosphoproteome of crab-eating macaque cerebral cortex characterized through multidimensional reversed-phase liquid chromatography/mass spectrometry with tandem anion/cation exchange columns.Journal of chromatography. A · 2017Quan Q, Feng J, Lui LT et al.DOI: 10.1016/j.chroma.2017.01.048
via PubMed
Wikidata facts
Show 11 more facts
- taxon rank
- species
- IUCN conservation status
- Endangered status
- Commons category
- Macaca fascicularis
- taxon name
- Macaca fascicularis
- Commons gallery
- Macaca fascicularis
- taxon common name
- crab-eating macaque
- longest observed lifespan
- 39
- sequenced genome URL
- www.ensembl.org/Macaca_fascicularis
- diel cycle
- diurnality
- short name
- M. fascicularis
- taxon range
- Brunei
Sources (3)
via Wikidata · CC0
~39 min read
Encyclopedic overview
The crab-eating macaque (Macaca fascicularis), also known as the long-tailed macaque or cynomolgus macaque, is a macaque species native to Southeast Asia. As a synanthropic species, the crab-eating macaque thrives near human settlements and in secondary forests. The crab-eating macaque has developed a variety of cultural perceptions, from being smart and adaptive, to being sacred, to even being pests in some cases.
The crab-eating macaque is omnivorous and frugivorous. It lives in matrilineal groups ranging from 10 to 85 individuals, with groups exhibiting female philopatry and males emigrating from natal group at puberty. The crab-eating macaque is the only old-world monkey known to use stone tools in their daily foraging, and it engages in a robbing and bartering behavior in some tourist locations.
Excerpted from Wikipedia’s “crab-eating macaque” article, available under the CC BY-SA 4.0 licence.