Dusky catshark vs Eurasian beaver

Bythaelurus incanus compared with Castor fiber

Key Differences

• Dusky catshark is Data Deficient while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Dusky catshark	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Carcharhiniformes (Ground Sharks)	Rodentia (Rodents)
Family	Scyliorhinidae	Castoridae (Beavers)
Genus	Bythaelurus	Castor (Beavers)
Species	Bythaelurus incanus	Castor fiber

Evolutionary Relationship

Dusky catshark and Eurasian beaver share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dusky catshark

DD — Data Deficient

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Dusky catshark	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dusky catshark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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.

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.