Eurasian beaver vs small quaker

Castor fiber compared with Orthosia cruda

Key Differences

• Eurasian beaver is Vulnerable while small quaker is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	small quaker
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Lepidoptera (Butterflies & Moths)
Family	Castoridae (Beavers)	Noctuidae
Genus	Castor (Beavers)	Orthosia
Species	Castor fiber	Orthosia cruda

Evolutionary Relationship

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

Conservation Status

Eurasian beaver

VU — Vulnerable

small quaker

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	small quaker
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.

small quaker

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden