Black-headed Night Monkey vs Marsh Pea

Aotus nigriceps compared with Lathyrus palustris

Key Differences

• Black-headed Night Monkey is Least Concern while Marsh Pea is Endangered.

Taxonomic Classification

Rank	Black-headed Night Monkey	Marsh Pea
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Primates (Primates)	Fabales (Legumes & Allies)
Family	Aotidae	Fabaceae
Genus	Aotus	Lathyrus
Species	Aotus nigriceps	Lathyrus palustris

Conservation Status

Black-headed Night Monkey

LC — Least Concern

Marsh Pea

EN — Endangered

Physical Characteristics

Attribute	Black-headed Night Monkey	Marsh Pea
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Marsh Pea

Habitat

Found across multiple habitat types including boreal forests and taiga, Mediterranean forests and woodlands, and deserts and xeric shrublands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Israel), Europe (7 countries), North America (Canada, United States), and South America (Brazil). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-headed Night Monkey

The Black-headed Night Monkey (Aotus nigriceps) is a species in the genus Aotus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.