Black Howler Monkey vs Ruff

Alouatta pigra compared with Calidris pugnax

Key Differences

• Black Howler Monkey is Endangered while Ruff is Least Concern.

Taxonomic Classification

Rank	Black Howler Monkey	Ruff
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Charadriiformes (Charadriiformes)
Family	Atelidae	Scolopacidae
Genus	Alouatta	Calidris
Species	Alouatta pigra	Calidris pugnax

Evolutionary Relationship

Black Howler Monkey and Ruff share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black Howler Monkey

EN — Endangered

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Black Howler Monkey	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Howler Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Ruff

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Venezuela).

Black Howler Monkey

The Black Howler Monkey (Alouatta pigra) is a species in the genus Alouatta. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Ruff

Ruff (Calidris pugnax) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.