Rhesus Macaque (Macaca mulatta) — Least Concern Mammalia

Rhesus Macaque

Macaca mulatta

Conservation Status

Least Concern

Mammalia · Primates · Cercopithecidae

About

The rhesus macaque, colloquially rhesus monkey, is a species of Old World monkey in the Macaca genus. There are between six and nine recognised subspecies split between two groups, the Chinese-derived and the Indian-derived. Generally brown or grey in colour, it is 47–53 cm (19–21 in) in length with a 20.7–22.9 cm (8.1–9.0 in) tail and weighs 5.3–7.7 kg (12–17 lb). It is native to South, Central, and Southeast Asia and has the widest geographic range of all non-human primates, occupying a great diversity of altitudes and habitats.

Fun Fact

Rhesus macaques are the most widely used non-human primates in biomedical research, and the Rh factor in human blood (Rh positive/negative) was named after them when discovered in rhesus monkey blood in 1940.

Quick Facts

Habitat

Forests and urban areas

Diet

Omnivore

Lifespan

25-30 years

Threats

  • Illegal Logging
  • Wildfire

External Data Sources

Recent sightings on iNaturalist IUCN Red List profile

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