Arnoux's beaked whale vs River Tern

Berardius arnuxii compared with Sterna aurantia

Key Differences

• Arnoux's beaked whale is Least Concern while River Tern is Vulnerable.

Taxonomic Classification

Rank	Arnoux's beaked whale	River Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Charadriiformes (Charadriiformes)
Family	Hyperoodontidae	Laridae
Genus	Berardius	Sterna
Species	Berardius arnuxii	Sterna aurantia

Evolutionary Relationship

Arnoux's beaked whale and River Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arnoux's beaked whale

LC — Least Concern

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	Arnoux's beaked whale	River Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arnoux's beaked whale

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.

Arnoux's beaked whale

The Arnoux's beaked whale, Berardius arnuxii, is a species. It is currently assessed as least concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.