Gray-shanked Douc Langur vs River Tern

Pygathrix cinerea compared with Sterna aurantia

Key Differences

• Gray-shanked Douc Langur is Critically Endangered while River Tern is Vulnerable.

Taxonomic Classification

Rank	Gray-shanked Douc Langur	River Tern
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)	Laridae
Genus	Pygathrix	Sterna
Species	Pygathrix cinerea	Sterna aurantia

Evolutionary Relationship

Gray-shanked Douc Langur and River Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-shanked Douc Langur

CR — Critically Endangered

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	Gray-shanked Douc Langur	River Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-shanked Douc Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

River Tern

Habitat

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

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.