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Formosan rock monkey

Macaca cyclopis

MammalThe IUCN lists the Form…

Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Mammal
Order
Primates
Family
Cercopithecidae
Genus
Macaca

Habitat

This species primarily inhabits mountainous and forested regions in Taiwan, including broadleaf and coniferous forests up to elevations of 3,000 meters. They prefer areas with rocky outcrops and dense vegetation for shelter, and can adapt to human-altered landscapes like agricultural edges.

Diet

Formosan rock monkeys are omnivorous, feeding on a variety of fruits, leaves, seeds, and insects, with a preference for seasonal fruits and nuts. They forage during the day in groups, often raiding crops like corn and fruit trees when natural food is scarce. Feeding behavior includes careful selection of ripe items and occasional tool use, such as using stones to crack nuts.

Behavior

These monkeys live in social troops of 10-50 individuals, led by a dominant male, with complex hierarchies and grooming rituals to maintain bonds. They are diurnal and highly territorial, defending their range with vocalizations and displays of aggression. Notable behaviors include playful interactions among juveniles and strategic foraging to avoid predators.

Conservation Status

The IUCN lists the Formosan rock monkey as Vulnerable due to habitat loss from deforestation and urbanization. Major threats include human-wildlife conflict and poaching, with populations showing a declining trend.