Black-headed Night Monkey vs Eurasian beaver

Aotus nigriceps compared with Castor fiber

Key Differences

• Black-headed Night Monkey is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Black-headed Night Monkey	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Primates (Primates)	Rodentia (Rodents)
Family	Aotidae	Castoridae (Beavers)
Genus	Aotus	Castor (Beavers)
Species	Aotus nigriceps	Castor fiber

Evolutionary Relationship

Black-headed Night Monkey and Eurasian beaver share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Black-headed Night Monkey

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Black-headed Night Monkey	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Eurasian beaver

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable 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.

Eurasian beaver

Eurasian beaver (Castor fiber) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.