Francois' langur vs River Tern

Trachypithecus francoisi compared with Sterna aurantia

Key Differences

• Francois' langur is Endangered while River Tern is Vulnerable.

Taxonomic Classification

Rank	Francois' 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 francoisi	Sterna aurantia

Evolutionary Relationship

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

Conservation Status

Francois' langur

EN — Endangered

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	Francois' langur	River Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Francois' 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.