Pagai Island Macaque

• Common Name: Pagai Island Macaque
• Taxonomy Classification Year: 1903
• Monkey Size: 40 to 55 cm (15.75 to 21.65 in)
• Skin Color(s): Dark brown
• Habitat: Forest, Rainforest
• Diet: Herbivorous
• Native Countries: Indonesia

The Pagai island macaque^[1] (Macaca pagensis), also called the Pagai or Bokkoi macaque is an Old-World monkey native to the Mentawai Islands on the west coast of Sumatra.

• Male Pagai Island macaques are generally larger than females. The body length of males is 45 to 55 cm, and females are about 40 to 45 cm.
• Tail length is 13 to 16 cm in males and 10 to 13 cm in females. Males are also heavier, weighing between 6 and 9 kg, while females weigh between 4.5 and 6 kg.
• Their back is dark brown and chestnut to light brown on the sides of the neck, front of the shoulders, and underside of this species.
• The legs are brown, and the arms are reddish brown. Mentawai macaques’ faces are hairless, and they have black skin and brown eyes.

• They live above the forest floor in the canopy, forage between 24 and 36 meters, and can perch up to 45 meters high.
• Groups of Pagai Island macaques consist of approximately 5 to 25 individuals. A troop generally contains 1 alpha adult male and several females and their young.
• The male is the ultimate authority on where the troop forages and communicates it to the rest of the group with high-pitched calls.
• Solitary, roaming Pagai Island macaques challenge the dominant male for his position, resulting in aggressive fights.
• If they detect predators, these macaques will notify the rest of the group with a short, harsh bark.