- Common Name: Heck’s Macaque
- Taxonomy Classification Year: 1901
- Monkey Size: 44.5 to 57 cm (17.52 to 22.44 in)
- Skin Color(s): Silky black
- Habitat: Rainforest, mountains
- Diet: Omnivorous
- Native Countries: Indonesia
Heck’s Macaque Distribution
Heck’s Macaque Characteristics
The Heck’s Macaque (Macaca hecki) is a macaque native to Sulawesi, Indonesia. This Old-World monkey is diurnal.
- Heck’s macaques are rarely observed or photographed, so it isn’t easy to describe their appearance. However, they do look quite similar to black-crested macaques.
- They both have tiny, almond-shaped brown eyes, silky black fur, and small vestigial tail tips, leading some to misidentify these Old-World Monkeys as great apes.
- However, there are still some significant differences, primarily the spiny black crest on a black-crested macaque’s head, which the Heck’s macaque lacks.
- Heck’s macaques have a broad, prominent forehead and narrow faces with sunken cheeks.
Heck’s Macaque Facts
- Heck’s macaques are probably diurnal and semi-arboreal in primary and secondary tropical forests. They move on all fours through the forest floor and the treetops.
- They have a multi-male, multi-female social system with group sizes ranging from 10 to 20 individuals.
- Based on the marital line, there is a hierarchical system between group members, which makes sense since female species do not leave their natal group.
- The open-mouthed gaze is a posture used to express threat, performed with a fixed gaze and an open mouth with covered teeth.
- Due to their frugivorous diet, Heck’s macaques will likely act as seed dispersers throughout their habitat.
Suggested Reading: Monkey Species List
Cite This Page
BioExplorer.net. (2023, May 31). Heck’s Macaque. Bio Explorer. https://www.bioexplorer.net/animals/mammals/monkeys/hecks-macaque/.
BioExplorer.net. "Heck’s Macaque" Bio Explorer, 31 May 2023, https://www.bioexplorer.net/animals/mammals/monkeys/hecks-macaque/.
BioExplorer.net. "Heck’s Macaque" Bio Explorer, May 31 2023. https://www.bioexplorer.net/animals/mammals/monkeys/hecks-macaque/.