Mentawai Langur vs Ruff

Presbytis potenziani compared with Calidris pugnax

Key Differences

• Mentawai Langur is Critically Endangered while Ruff is Least Concern.

Taxonomic Classification

Rank	Mentawai Langur	Ruff
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Charadriiformes (Charadriiformes)
Family	Cercopithecidae (Old World Monkeys)	Scolopacidae
Genus	Presbytis	Calidris
Species	Presbytis potenziani	Calidris pugnax

Evolutionary Relationship

Mentawai Langur and Ruff share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Mentawai Langur

CR — Critically Endangered

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Mentawai Langur	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Mentawai Langur

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).

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.