Eurasian beaver vs green boring sponge

Castor fiber compared with Cliona viridis

Key Differences

• Eurasian beaver is Vulnerable while green boring sponge is Not Evaluated.

Taxonomic Classification

Rank	Eurasian beaver	green boring 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 viridis

Evolutionary Relationship

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

Conservation Status

Eurasian beaver

VU — Vulnerable

green boring sponge

NE — Not Evaluated

Physical Characteristics

Attribute	Eurasian beaver	green boring 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.

green boring sponge

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Portugal.

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:

🇵🇹 Portugal