Eurasian beaver vs sheet-web spiders

Castor fiber compared with Erigone dentosa

Key Differences

• Eurasian beaver is Vulnerable while sheet-web spiders is Not Evaluated.

Taxonomic Classification

Rank	Eurasian beaver	sheet-web spiders
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Arachnida (Arachnids)
Order	Rodentia (Rodents)	Araneae (Araneae)
Family	Castoridae (Beavers)	Linyphiidae
Genus	Castor (Beavers)	Erigone
Species	Castor fiber	Erigone dentosa

Evolutionary Relationship

Eurasian beaver and sheet-web spiders share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Eurasian beaver

VU — Vulnerable

sheet-web spiders

NE — Not Evaluated

Physical Characteristics

Attribute	Eurasian beaver	sheet-web spiders
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.

sheet-web spiders

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Distributed across Belgium, Canada, Denmark, 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 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway