Gorontalo Macaque

• Common Names: Gorontalo Macaque, Dumoga-bone Macaque
• Taxonomy Classification Year: 1849
• Monkey Size: 44.5 to 57 cm (17.52 to 22.44 in)
• Skin Color(s): Black
• Habitat: Rainforest, mountains
• Diet: Omnivorous
• Native Countries: Northern Sulawesi Islands of Indonesia

The Gorontalo macaque^[1] (Macaca nigrescens), also called the Dumoga-bone macaque, is a species of the primate of the Cercopithecidae family.

• Dumoga-bone Macaques are native to the Northern Sulawesi Island of Indonesia. Gorontalo macaques are large diurnal primates with black bodies and faces.
• Their faces are black and sparsely covered with fur, and their fur is coarse, dense, and shaggy.
• Juvenile Gorontalo macaques are paler than adults and appear brown instead of black. In addition, juveniles have black fur where the crest develops.
• As adult male species age, their hair turns grizzled and gray, most noticeable on the upper body; it also sometimes occurs in the arms of younger men.

• Gorontalo macaques are diurnal, spending 59 percent^[2] of their waking time moving, feeding, and foraging.
• Female species have an egalitarian social structure, while men form a linear and transitive domination hierarchy.
• Groups are typically tolerant, characterized by displays of appeasement, minimal aggression (biting), and “symmetry in conflict“.
• Male Gorontalo macaques exhibit a wide range of signals to indicate aggression: open-mouth stares, closed-mouth grins, yawning, swinging, and chasing.
• They usually gather in the morning, rest in the afternoon, and roost in trees.