Peruvian Yellow-tailed Woolly Monkey vs Ruff

Lagothrix flavicauda compared with Calidris pugnax

Key Differences

• Peruvian Yellow-tailed Woolly Monkey is Critically Endangered while Ruff is Least Concern.

Taxonomic Classification

Rank	Peruvian Yellow-tailed Woolly 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	Lagothrix	Calidris
Species	Lagothrix flavicauda	Calidris pugnax

Evolutionary Relationship

Peruvian Yellow-tailed Woolly Monkey and Ruff share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Peruvian Yellow-tailed Woolly Monkey

CR — Critically Endangered

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Peruvian Yellow-tailed Woolly Monkey	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Peruvian Yellow-tailed Woolly 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).

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.