Eurasian beaver vs Humpback Western dogfish

Castor fiber compared with Squalus quasimodo

Key Differences

• Eurasian beaver is Vulnerable while Humpback Western dogfish is Data Deficient.

Taxonomic Classification

Rank	Eurasian beaver	Humpback Western dogfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Squaliformes (Squaliformes)
Family	Castoridae (Beavers)	Squalidae
Genus	Castor (Beavers)	Squalus
Species	Castor fiber	Squalus quasimodo

Evolutionary Relationship

Eurasian beaver and Humpback Western dogfish share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Eurasian beaver

VU — Vulnerable

Humpback Western dogfish

DD — Data Deficient

Physical Characteristics

Attribute	Eurasian beaver	Humpback Western dogfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Humpback Western dogfish

Eurasian beaver

Eurasian beaver (Castor fiber) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.