Eurasian beaver vs Onion Earthball

Castor fiber compared with Scleroderma cepa

Key Differences

• Eurasian beaver is Vulnerable while Onion Earthball is Data Deficient.

Taxonomic Classification

Rank	Eurasian beaver	Onion Earthball
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Rodentia (Rodents)	Boletales (Boletales)
Family	Castoridae (Beavers)	Sclerodermataceae
Genus	Castor (Beavers)	Scleroderma
Species	Castor fiber	Scleroderma cepa

Conservation Status

Eurasian beaver

VU — Vulnerable

Onion Earthball

DD — Data Deficient

Physical Characteristics

Attribute	Eurasian beaver	Onion Earthball
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.

Onion Earthball

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (United States), and South America (Brazil).

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 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden