vs Eurasian beaver

Acanthocorbis asymmetrica compared with Castor fiber

Key Differences

• is Not Evaluated while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank		Eurasian beaver
Kingdom	Protozoa (protozoa)	Animalia (Animals)
Phylum	Choanozoa (Choanozoa)	Chordata (Chordates)
Class	Choanoflagellatea (Choanoflagellatea)	Mammalia (Mammals)
Order	Choanoflagellida (Choanoflagellida)	Rodentia (Rodents)
Family	Acanthoecidae	Castoridae (Beavers)
Genus	Acanthocorbis	Castor (Beavers)
Species	Acanthocorbis asymmetrica	Castor fiber

Conservation Status

NE — Not Evaluated

Eurasian beaver

VU — Vulnerable

Physical Characteristics

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

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Acanthocorbis asymmetrica is a marine choanoflagellate, a unicellular organism closely related to the ancestors of animals, living in coastal and open ocean waters. Its cells are enclosed within a lorica (basket-like cage) constructed from siliceous costal strips that form an asymmetric pattern, distinguishing it from related species. It feeds on bacteria, playing a role in marine microbial food webs.

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 2 countries:

🇳🇴 Norway 🇸🇪 Sweden