Arnoux's beaked whale vs Eurasian beaver

Berardius arnuxii compared with Castor fiber

Key Differences

• Arnoux's beaked whale is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Arnoux's beaked whale	Eurasian beaver
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Cetacea (Whales & Dolphins)	Rodentia (啮齿目)
Family	Hyperoodontidae	Castoridae (Beavers)
Genus	Berardius	Castor (Beavers)
Species	Berardius arnuxii	Castor fiber

Evolutionary Relationship

Arnoux's beaked whale and Eurasian beaver share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

Arnoux's beaked whale

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Arnoux's beaked whale	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arnoux's beaked whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Eurasian beaver

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). 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.

Eurasian beaver

欧亚河狸（Castor fiber）在IUCN红色名录中被列为易危（VU）。面临野外高度濒危风险，种群数量下降，栖息地压力日益增大。