Eurasian beaver vs Sponge

Castor fiber compared with Cliona thoosina

Key Differences

• Eurasian beaver is Vulnerable while Sponge is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Sponge
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Porifera (Sponges)
Class	Mammalia (Mammals)	Demospongiae (Demospongiae)
Order	Rodentia (Rodents)	Clionaida (Clionaida)
Family	Castoridae (Beavers)	Clionaidae
Genus	Castor (Beavers)	Cliona
Species	Castor fiber	Cliona thoosina

Evolutionary Relationship

Eurasian beaver and Sponge share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Eurasian beaver

VU — Vulnerable

Sponge

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Sponge
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.

Sponge

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and United States.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway