Francois' langur vs Ruff

Trachypithecus francoisi compared with Calidris pugnax

Key Differences

• Francois' langur is Endangered while Ruff is Least Concern.

Taxonomic Classification

Rank	Francois' 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	Trachypithecus	Calidris
Species	Trachypithecus francoisi	Calidris pugnax

Evolutionary Relationship

Francois' langur and Ruff share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Francois' langur

EN — Endangered

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Francois' langur	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Francois' 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.