elk vs Gray-bellied Night Monkey

Cervus elaphus compared with Aotus lemurinus

Taxonomic Classification

Rank	elk	Gray-bellied Night Monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Artiodactyla (Even-toed Ungulates)	Primates (Primates)
Family	Cervidae (Deer)	Aotidae
Genus	Cervus (True Deer)	Aotus
Species	Cervus elaphus	Aotus lemurinus

Evolutionary Relationship

elk and Gray-bellied Night Monkey share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

elk

VU — Vulnerable

Trend: Stable →

Gray-bellied Night Monkey

VU — Vulnerable

Physical Characteristics

Attribute	elk	Gray-bellied Night Monkey
Diet	Herbivore	—
Average Lifespan	20 years	—
Average Length	2.1 m	—
Average Weight	240.0 kg	—

Habitat & Geographic Range

elk

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and temperate broadleaf and mixed forests, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (Afghanistan, Indonesia), Europe (11 countries), North America (Mexico), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina, Chile, Peru). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its 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.

elk

Also known as the red deer, elk are among the largest members of the deer family, with antlered males reaching up to 240 kg. Found across temperate forests and grasslands of Europe, Asia, and North America, where populations were historically separated as distinct subspecies. Males shed and regrow their antlers annually, engaging in dramatic roaring contests during autumn rut. An important game and conservation species across its range.