Formosan rock macaque vs Humboldt's Squirrel Monkey

Macaca cyclopis compared with Saimiri cassiquiarensis

Key Differences

• Formosan rock macaque is Least Concern while Humboldt's Squirrel Monkey is Near Threatened.

Taxonomic Classification

Rank	Formosan rock macaque	Humboldt's Squirrel Monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Primates (Primates)	Primates (Primates)
Family	Cercopithecidae (Old World Monkeys)	Cebidae
Genus	Macaca	Saimiri
Species	Macaca cyclopis	Saimiri cassiquiarensis

Evolutionary Relationship

Formosan rock macaque and Humboldt's Squirrel Monkey share a common ancestor at the Order level: Primates. (Primates)

Conservation Status

Formosan rock macaque

LC — Least Concern

Humboldt's Squirrel Monkey

NT — Near Threatened

Physical Characteristics

Attribute	Formosan rock macaque	Humboldt's Squirrel Monkey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Formosan rock macaque

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Japan and Taiwan.

Humboldt's Squirrel Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.