Gray-bellied Night Monkey vs Cassie

Aotus lemurinus compared with Senna obtusifolia

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Cassie is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Cassie
Kingdom	Animalia (animal)	Plantae (plante)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (mammifères)	Magnoliopsida (Dicots)
Order	Primates (Primates)	Fabales (Legumes & Allies)
Family	Aotidae	Fabaceae
Genus	Aotus	Senna
Species	Aotus lemurinus	Senna obtusifolia

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Cassie

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Cassie
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-bellied Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Cassie

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (22 countries), Asia (13 countries), Europe (9 countries), North America (5 countries), Oceania and the Pacific (10 countries), and South America (5 countries).

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela