Indochinese Gray Langur vs River Tern

Trachypithecus crepusculus compared with Sterna aurantia

Key Differences

• Indochinese Gray Langur is Endangered while River Tern is Vulnerable.

Taxonomic Classification

Rank	Indochinese Gray 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	Trachypithecus	Sterna
Species	Trachypithecus crepusculus	Sterna aurantia

Evolutionary Relationship

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

Conservation Status

Indochinese Gray Langur

EN — Endangered

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	Indochinese Gray Langur	River Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Indochinese Gray 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.